diff --git a/src/ol/format/filter/And.js b/src/ol/format/filter/And.js
index f1d9426094..c1a662a003 100644
--- a/src/ol/format/filter/And.js
+++ b/src/ol/format/filter/And.js
@@ -1,27 +1,24 @@
 /**
  * @module ol/format/filter/And
  */
-import {inherits} from '../../util.js';
 import LogicalNary from '../filter/LogicalNary.js';
 
 /**
  * @classdesc
  * Represents a logical `<And>` operator between two or more filter conditions.
  *
- * @constructor
  * @abstract
- * @param {...module:ol/format/filter/Filter} conditions Conditions.
- * @extends {module:ol/format/filter/LogicalNary}
  */
-class And {
+class And extends LogicalNary {
 
+  /**
+   * @param {...module:ol/format/filter/Filter} conditions Conditions.
+   */
   constructor(conditions) {
     const params = ['And'].concat(Array.prototype.slice.call(arguments));
-    LogicalNary.apply(this, params);
+    super(...params);
   }
 
 }
 
-inherits(And, LogicalNary);
-
 export default And;
diff --git a/src/ol/format/filter/Bbox.js b/src/ol/format/filter/Bbox.js
index 1e747c5c28..9d849ad25b 100644
--- a/src/ol/format/filter/Bbox.js
+++ b/src/ol/format/filter/Bbox.js
@@ -1,7 +1,6 @@
 /**
  * @module ol/format/filter/Bbox
  */
-import {inherits} from '../../util.js';
 import Filter from '../filter/Filter.js';
 
 /**
@@ -9,19 +8,19 @@ import Filter from '../filter/Filter.js';
  * Represents a `<BBOX>` operator to test whether a geometry-valued property
  * intersects a fixed bounding box
  *
- * @constructor
- * @param {!string} geometryName Geometry name to use.
- * @param {!module:ol/extent~Extent} extent Extent.
- * @param {string=} opt_srsName SRS name. No srsName attribute will be
- *    set on geometries when this is not provided.
- * @extends {module:ol/format/filter/Filter}
  * @api
  */
-class Bbox {
+class Bbox extends Filter {
 
+  /**
+   * @param {!string} geometryName Geometry name to use.
+   * @param {!module:ol/extent~Extent} extent Extent.
+   * @param {string=} opt_srsName SRS name. No srsName attribute will be set
+   * on geometries when this is not provided.
+   */
   constructor(geometryName, extent, opt_srsName) {
 
-    Filter.call(this, 'BBOX');
+    super('BBOX');
 
     /**
      * @type {!string}
@@ -41,6 +40,4 @@ class Bbox {
 
 }
 
-inherits(Bbox, Filter);
-
 export default Bbox;
diff --git a/src/ol/format/filter/Comparison.js b/src/ol/format/filter/Comparison.js
index 1d781511a9..138f490459 100644
--- a/src/ol/format/filter/Comparison.js
+++ b/src/ol/format/filter/Comparison.js
@@ -1,7 +1,6 @@
 /**
  * @module ol/format/filter/Comparison
  */
-import {inherits} from '../../util.js';
 import Filter from '../filter/Filter.js';
 
 /**
@@ -9,17 +8,17 @@ import Filter from '../filter/Filter.js';
  * Abstract class; normally only used for creating subclasses and not instantiated in apps.
  * Base class for WFS GetFeature property comparison filters.
  *
- * @constructor
  * @abstract
- * @param {!string} tagName The XML tag name for this filter.
- * @param {!string} propertyName Name of the context property to compare.
- * @extends {module:ol/format/filter/Filter}
  */
-class Comparison {
+class Comparison extends Filter {
 
+  /**
+   * @param {!string} tagName The XML tag name for this filter.
+   * @param {!string} propertyName Name of the context property to compare.
+   */
   constructor(tagName, propertyName) {
 
-    Filter.call(this, tagName);
+    super(tagName);
 
     /**
      * @type {!string}
@@ -29,6 +28,4 @@ class Comparison {
 
 }
 
-inherits(Comparison, Filter);
-
 export default Comparison;
diff --git a/src/ol/format/filter/ComparisonBinary.js b/src/ol/format/filter/ComparisonBinary.js
index 8adeb7303c..d4d5d4f1b2 100644
--- a/src/ol/format/filter/ComparisonBinary.js
+++ b/src/ol/format/filter/ComparisonBinary.js
@@ -1,7 +1,6 @@
 /**
  * @module ol/format/filter/ComparisonBinary
  */
-import {inherits} from '../../util.js';
 import Comparison from '../filter/Comparison.js';
 
 /**
@@ -9,19 +8,19 @@ import Comparison from '../filter/Comparison.js';
  * Abstract class; normally only used for creating subclasses and not instantiated in apps.
  * Base class for WFS GetFeature property binary comparison filters.
  *
- * @constructor
  * @abstract
- * @param {!string} tagName The XML tag name for this filter.
- * @param {!string} propertyName Name of the context property to compare.
- * @param {!(string|number)} expression The value to compare.
- * @param {boolean=} opt_matchCase Case-sensitive?
- * @extends {module:ol/format/filter/Comparison}
  */
-class ComparisonBinary {
+class ComparisonBinary extends Comparison {
 
+  /**
+   * @param {!string} tagName The XML tag name for this filter.
+   * @param {!string} propertyName Name of the context property to compare.
+   * @param {!(string|number)} expression The value to compare.
+   * @param {boolean=} opt_matchCase Case-sensitive?
+   */
   constructor(tagName, propertyName, expression, opt_matchCase) {
 
-    Comparison.call(this, tagName, propertyName);
+    super(tagName, propertyName);
 
     /**
      * @type {!(string|number)}
@@ -36,6 +35,4 @@ class ComparisonBinary {
 
 }
 
-inherits(ComparisonBinary, Comparison);
-
 export default ComparisonBinary;
diff --git a/src/ol/format/filter/Contains.js b/src/ol/format/filter/Contains.js
index 4de230a1ab..4bea87e530 100644
--- a/src/ol/format/filter/Contains.js
+++ b/src/ol/format/filter/Contains.js
@@ -1,32 +1,28 @@
 /**
  * @module ol/format/filter/Contains
  */
-import {inherits} from '../../util.js';
 import Spatial from '../filter/Spatial.js';
 
 /**
  * @classdesc
  * Represents a `<Contains>` operator to test whether a geometry-valued property
  * contains a given geometry.
- *
- * @constructor
- * @param {!string} geometryName Geometry name to use.
- * @param {!module:ol/geom/Geometry} geometry Geometry.
- * @param {string=} opt_srsName SRS name. No srsName attribute will be
- *    set on geometries when this is not provided.
- * @extends {module:ol/format/filter/Spatial}
- * @api
  */
-class Contains {
+class Contains extends Spatial {
 
+  /**
+   * @param {!string} geometryName Geometry name to use.
+   * @param {!module:ol/geom/Geometry} geometry Geometry.
+   * @param {string=} opt_srsName SRS name. No srsName attribute will be
+   *    set on geometries when this is not provided.
+   * @api
+   */
   constructor(geometryName, geometry, opt_srsName) {
 
-    Spatial.call(this, 'Contains', geometryName, geometry, opt_srsName);
+    super('Contains', geometryName, geometry, opt_srsName);
 
   }
 
 }
 
-inherits(Contains, Spatial);
-
 export default Contains;
diff --git a/src/ol/format/filter/During.js b/src/ol/format/filter/During.js
index ca7f848afc..45f4ade49d 100644
--- a/src/ol/format/filter/During.js
+++ b/src/ol/format/filter/During.js
@@ -1,24 +1,22 @@
 /**
  * @module ol/format/filter/During
  */
-import {inherits} from '../../util.js';
 import Comparison from '../filter/Comparison.js';
 
 /**
  * @classdesc
  * Represents a `<During>` comparison operator.
- *
- * @constructor
- * @param {!string} propertyName Name of the context property to compare.
- * @param {!string} begin The begin date in ISO-8601 format.
- * @param {!string} end The end date in ISO-8601 format.
- * @extends {module:ol/format/filter/Comparison}
- * @api
  */
-class During {
+class During extends Comparison {
 
+  /**
+   * @param {!string} propertyName Name of the context property to compare.
+   * @param {!string} begin The begin date in ISO-8601 format.
+   * @param {!string} end The end date in ISO-8601 format.
+   * @api
+   */
   constructor(propertyName, begin, end) {
-    Comparison.call(this, 'During', propertyName);
+    super('During', propertyName);
 
     /**
      * @type {!string}
@@ -33,6 +31,4 @@ class During {
 
 }
 
-inherits(During, Comparison);
-
 export default During;
diff --git a/src/ol/format/filter/EqualTo.js b/src/ol/format/filter/EqualTo.js
index a9eedf6c16..253a5add6c 100644
--- a/src/ol/format/filter/EqualTo.js
+++ b/src/ol/format/filter/EqualTo.js
@@ -1,28 +1,24 @@
 /**
  * @module ol/format/filter/EqualTo
  */
-import {inherits} from '../../util.js';
 import ComparisonBinary from '../filter/ComparisonBinary.js';
 
 /**
  * @classdesc
  * Represents a `<PropertyIsEqualTo>` comparison operator.
- *
- * @constructor
- * @param {!string} propertyName Name of the context property to compare.
- * @param {!(string|number)} expression The value to compare.
- * @param {boolean=} opt_matchCase Case-sensitive?
- * @extends {module:ol/format/filter/ComparisonBinary}
- * @api
  */
-class EqualTo {
+class EqualTo extends ComparisonBinary {
 
+  /**
+   * @param {!string} propertyName Name of the context property to compare.
+   * @param {!(string|number)} expression The value to compare.
+   * @param {boolean=} opt_matchCase Case-sensitive?
+   * @api
+   */
   constructor(propertyName, expression, opt_matchCase) {
-    ComparisonBinary.call(this, 'PropertyIsEqualTo', propertyName, expression, opt_matchCase);
+    super('PropertyIsEqualTo', propertyName, expression, opt_matchCase);
   }
 
 }
 
-inherits(EqualTo, ComparisonBinary);
-
 export default EqualTo;
diff --git a/src/ol/format/filter/Filter.js b/src/ol/format/filter/Filter.js
index 5be0df9c27..8f5a7265fa 100644
--- a/src/ol/format/filter/Filter.js
+++ b/src/ol/format/filter/Filter.js
@@ -8,12 +8,13 @@
  * Abstract class; normally only used for creating subclasses and not instantiated in apps.
  * Base class for WFS GetFeature filters.
  *
- * @constructor
  * @abstract
- * @param {!string} tagName The XML tag name for this filter.
  * @struct
  */
 class Filter {
+  /**
+   * @param {!string} tagName The XML tag name for this filter.
+   */
   constructor(tagName) {
 
     /**
diff --git a/src/ol/format/filter/GreaterThan.js b/src/ol/format/filter/GreaterThan.js
index a19804a00c..e2ab526557 100644
--- a/src/ol/format/filter/GreaterThan.js
+++ b/src/ol/format/filter/GreaterThan.js
@@ -1,27 +1,23 @@
 /**
  * @module ol/format/filter/GreaterThan
  */
-import {inherits} from '../../util.js';
 import ComparisonBinary from '../filter/ComparisonBinary.js';
 
 /**
  * @classdesc
  * Represents a `<PropertyIsGreaterThan>` comparison operator.
- *
- * @constructor
- * @param {!string} propertyName Name of the context property to compare.
- * @param {!number} expression The value to compare.
- * @extends {module:ol/format/filter/ComparisonBinary}
- * @api
  */
-class GreaterThan {
+class GreaterThan extends ComparisonBinary {
 
+  /**
+   * @param {!string} propertyName Name of the context property to compare.
+   * @param {!number} expression The value to compare.
+   * @api
+   */
   constructor(propertyName, expression) {
-    ComparisonBinary.call(this, 'PropertyIsGreaterThan', propertyName, expression);
+    super('PropertyIsGreaterThan', propertyName, expression);
   }
 
 }
 
-inherits(GreaterThan, ComparisonBinary);
-
 export default GreaterThan;
diff --git a/src/ol/format/filter/GreaterThanOrEqualTo.js b/src/ol/format/filter/GreaterThanOrEqualTo.js
index a55cc09d62..dac7068184 100644
--- a/src/ol/format/filter/GreaterThanOrEqualTo.js
+++ b/src/ol/format/filter/GreaterThanOrEqualTo.js
@@ -1,27 +1,23 @@
 /**
  * @module ol/format/filter/GreaterThanOrEqualTo
  */
-import {inherits} from '../../util.js';
 import ComparisonBinary from '../filter/ComparisonBinary.js';
 
 /**
  * @classdesc
  * Represents a `<PropertyIsGreaterThanOrEqualTo>` comparison operator.
- *
- * @constructor
- * @param {!string} propertyName Name of the context property to compare.
- * @param {!number} expression The value to compare.
- * @extends {module:ol/format/filter/ComparisonBinary}
- * @api
  */
-class GreaterThanOrEqualTo {
+class GreaterThanOrEqualTo extends ComparisonBinary {
 
+  /**
+   * @param {!string} propertyName Name of the context property to compare.
+   * @param {!number} expression The value to compare.
+   * @api
+   */
   constructor(propertyName, expression) {
-    ComparisonBinary.call(this, 'PropertyIsGreaterThanOrEqualTo', propertyName, expression);
+    super('PropertyIsGreaterThanOrEqualTo', propertyName, expression);
   }
 
 }
 
-inherits(GreaterThanOrEqualTo, ComparisonBinary);
-
 export default GreaterThanOrEqualTo;
diff --git a/src/ol/format/filter/Intersects.js b/src/ol/format/filter/Intersects.js
index b64696c96d..94f0117bb5 100644
--- a/src/ol/format/filter/Intersects.js
+++ b/src/ol/format/filter/Intersects.js
@@ -1,31 +1,25 @@
 /**
  * @module ol/format/filter/Intersects
  */
-import {inherits} from '../../util.js';
 import Spatial from '../filter/Spatial.js';
 
 /**
  * @classdesc
  * Represents a `<Intersects>` operator to test whether a geometry-valued property
  * intersects a given geometry.
- *
- * @constructor
- * @param {!string} geometryName Geometry name to use.
- * @param {!module:ol/geom/Geometry} geometry Geometry.
- * @param {string=} opt_srsName SRS name. No srsName attribute will be
- *    set on geometries when this is not provided.
- * @extends {module:ol/format/filter/Spatial}
- * @api
  */
-class Intersects {
+class Intersects extends Spatial {
 
+  /**
+   * @param {!string} geometryName Geometry name to use.
+   * @param {!module:ol/geom/Geometry} geometry Geometry.
+   * @param {string=} opt_srsName SRS name. No srsName attribute will be
+   *    set on geometries when this is not provided.
+   */
   constructor(geometryName, geometry, opt_srsName) {
-
-    Spatial.call(this, 'Intersects', geometryName, geometry, opt_srsName);
+    super('Intersects', geometryName, geometry, opt_srsName);
   }
 
 }
 
-inherits(Intersects, Spatial);
-
 export default Intersects;
diff --git a/src/ol/format/filter/IsBetween.js b/src/ol/format/filter/IsBetween.js
index 3134f36059..899836fc62 100644
--- a/src/ol/format/filter/IsBetween.js
+++ b/src/ol/format/filter/IsBetween.js
@@ -1,24 +1,22 @@
 /**
  * @module ol/format/filter/IsBetween
  */
-import {inherits} from '../../util.js';
 import Comparison from '../filter/Comparison.js';
 
 /**
  * @classdesc
  * Represents a `<PropertyIsBetween>` comparison operator.
- *
- * @constructor
- * @param {!string} propertyName Name of the context property to compare.
- * @param {!number} lowerBoundary The lower bound of the range.
- * @param {!number} upperBoundary The upper bound of the range.
- * @extends {module:ol/format/filter/Comparison}
- * @api
  */
-class IsBetween {
+class IsBetween extends Comparison {
 
+  /**
+   * @param {!string} propertyName Name of the context property to compare.
+   * @param {!number} lowerBoundary The lower bound of the range.
+   * @param {!number} upperBoundary The upper bound of the range.
+   * @api
+   */
   constructor(propertyName, lowerBoundary, upperBoundary) {
-    Comparison.call(this, 'PropertyIsBetween', propertyName);
+    super('PropertyIsBetween', propertyName);
 
     /**
      * @type {!number}
@@ -33,6 +31,4 @@ class IsBetween {
   }
 }
 
-inherits(IsBetween, Comparison);
-
 export default IsBetween;
diff --git a/src/ol/format/filter/IsLike.js b/src/ol/format/filter/IsLike.js
index fbf07e8b08..c663446016 100644
--- a/src/ol/format/filter/IsLike.js
+++ b/src/ol/format/filter/IsLike.js
@@ -1,30 +1,29 @@
 /**
  * @module ol/format/filter/IsLike
  */
-import {inherits} from '../../util.js';
 import Comparison from '../filter/Comparison.js';
 
 /**
  * @classdesc
  * Represents a `<PropertyIsLike>` comparison operator.
- *
- * @constructor
- * @param {!string} propertyName Name of the context property to compare.
- * @param {!string} pattern Text pattern.
- * @param {string=} opt_wildCard Pattern character which matches any sequence of
- *    zero or more string characters. Default is '*'.
- * @param {string=} opt_singleChar pattern character which matches any single
- *    string character. Default is '.'.
- * @param {string=} opt_escapeChar Escape character which can be used to escape
- *    the pattern characters. Default is '!'.
- * @param {boolean=} opt_matchCase Case-sensitive?
- * @extends {module:ol/format/filter/Comparison}
- * @api
  */
-class IsLike {
+class IsLike extends Comparison {
 
+  /**
+   * [constructor description]
+   * @param {!string} propertyName Name of the context property to compare.
+   * @param {!string} pattern Text pattern.
+   * @param {string=} opt_wildCard Pattern character which matches any sequence of
+   *    zero or more string characters. Default is '*'.
+   * @param {string=} opt_singleChar pattern character which matches any single
+   *    string character. Default is '.'.
+   * @param {string=} opt_escapeChar Escape character which can be used to escape
+   *    the pattern characters. Default is '!'.
+   * @param {boolean=} opt_matchCase Case-sensitive?
+   * @api
+   */
   constructor(propertyName, pattern, opt_wildCard, opt_singleChar, opt_escapeChar, opt_matchCase) {
-    Comparison.call(this, 'PropertyIsLike', propertyName);
+    super('PropertyIsLike', propertyName);
 
     /**
      * @type {!string}
@@ -54,6 +53,4 @@ class IsLike {
   }
 }
 
-inherits(IsLike, Comparison);
-
 export default IsLike;
diff --git a/src/ol/format/filter/IsNull.js b/src/ol/format/filter/IsNull.js
index 4daf9a7bc9..17fa0fa901 100644
--- a/src/ol/format/filter/IsNull.js
+++ b/src/ol/format/filter/IsNull.js
@@ -1,27 +1,22 @@
 /**
  * @module ol/format/filter/IsNull
  */
-import {inherits} from '../../util.js';
 import Comparison from '../filter/Comparison.js';
 
 /**
  * @classdesc
  * Represents a `<PropertyIsNull>` comparison operator.
- *
- * @constructor
- * @param {!string} propertyName Name of the context property to compare.
- * @extends {module:ol/format/filter/Comparison}
- * @api
  */
-class IsNull {
+class IsNull extends Comparison {
 
+  /**
+   * @param {!string} propertyName Name of the context property to compare.
+   * @api
+   */
   constructor(propertyName) {
-    Comparison.call(this, 'PropertyIsNull', propertyName);
+    super('PropertyIsNull', propertyName);
   }
 
 }
 
-
-inherits(IsNull, Comparison);
-
 export default IsNull;
diff --git a/src/ol/format/filter/LessThan.js b/src/ol/format/filter/LessThan.js
index 85d241bd9f..82917eb2d0 100644
--- a/src/ol/format/filter/LessThan.js
+++ b/src/ol/format/filter/LessThan.js
@@ -1,27 +1,23 @@
 /**
  * @module ol/format/filter/LessThan
  */
-import {inherits} from '../../util.js';
 import ComparisonBinary from '../filter/ComparisonBinary.js';
 
 /**
  * @classdesc
  * Represents a `<PropertyIsLessThan>` comparison operator.
- *
- * @constructor
- * @param {!string} propertyName Name of the context property to compare.
- * @param {!number} expression The value to compare.
- * @extends {module:ol/format/filter/ComparisonBinary}
- * @api
  */
-class LessThan {
+class LessThan extends ComparisonBinary {
 
+  /**
+   * @param {!string} propertyName Name of the context property to compare.
+   * @param {!number} expression The value to compare.
+   * @api
+   */
   constructor(propertyName, expression) {
-    ComparisonBinary.call(this, 'PropertyIsLessThan', propertyName, expression);
+    super('PropertyIsLessThan', propertyName, expression);
   }
 
 }
 
-inherits(LessThan, ComparisonBinary);
-
 export default LessThan;
diff --git a/src/ol/format/filter/LessThanOrEqualTo.js b/src/ol/format/filter/LessThanOrEqualTo.js
index ef89c408a5..46c4f09a11 100644
--- a/src/ol/format/filter/LessThanOrEqualTo.js
+++ b/src/ol/format/filter/LessThanOrEqualTo.js
@@ -1,27 +1,23 @@
 /**
  * @module ol/format/filter/LessThanOrEqualTo
  */
-import {inherits} from '../../util.js';
 import ComparisonBinary from '../filter/ComparisonBinary.js';
 
 /**
  * @classdesc
  * Represents a `<PropertyIsLessThanOrEqualTo>` comparison operator.
- *
- * @constructor
- * @param {!string} propertyName Name of the context property to compare.
- * @param {!number} expression The value to compare.
- * @extends {module:ol/format/filter/ComparisonBinary}
- * @api
  */
-class LessThanOrEqualTo {
+class LessThanOrEqualTo extends ComparisonBinary {
 
+  /**
+   * @param {!string} propertyName Name of the context property to compare.
+   * @param {!number} expression The value to compare.
+   * @api
+   */
   constructor(propertyName, expression) {
-    ComparisonBinary.call(this, 'PropertyIsLessThanOrEqualTo', propertyName, expression);
+    super('PropertyIsLessThanOrEqualTo', propertyName, expression);
   }
 
 }
 
-inherits(LessThanOrEqualTo, ComparisonBinary);
-
 export default LessThanOrEqualTo;
diff --git a/src/ol/format/filter/LogicalNary.js b/src/ol/format/filter/LogicalNary.js
index fcbcdb0b09..425e3e9ab9 100644
--- a/src/ol/format/filter/LogicalNary.js
+++ b/src/ol/format/filter/LogicalNary.js
@@ -1,7 +1,6 @@
 /**
  * @module ol/format/filter/LogicalNary
  */
-import {inherits} from '../../util.js';
 import {assert} from '../../asserts.js';
 import Filter from '../filter/Filter.js';
 
@@ -10,17 +9,17 @@ import Filter from '../filter/Filter.js';
  * Abstract class; normally only used for creating subclasses and not instantiated in apps.
  * Base class for WFS GetFeature n-ary logical filters.
  *
- * @constructor
  * @abstract
- * @param {!string} tagName The XML tag name for this filter.
- * @param {...module:ol/format/filter/Filter} conditions Conditions.
- * @extends {module:ol/format/filter/Filter}
  */
-class LogicalNary {
+class LogicalNary extends Filter {
 
+  /**
+   * @param {!string} tagName The XML tag name for this filter.
+   * @param {...module:ol/format/filter/Filter} conditions Conditions.
+   */
   constructor(tagName, conditions) {
 
-    Filter.call(this, tagName);
+    super(tagName);
 
     /**
      * @type {Array.<module:ol/format/filter/Filter>}
@@ -31,6 +30,4 @@ class LogicalNary {
 
 }
 
-inherits(LogicalNary, Filter);
-
 export default LogicalNary;
diff --git a/src/ol/format/filter/Not.js b/src/ol/format/filter/Not.js
index 6fd462d24e..c5cb77782c 100644
--- a/src/ol/format/filter/Not.js
+++ b/src/ol/format/filter/Not.js
@@ -1,23 +1,21 @@
 /**
  * @module ol/format/filter/Not
  */
-import {inherits} from '../../util.js';
 import Filter from '../filter/Filter.js';
 
 /**
  * @classdesc
  * Represents a logical `<Not>` operator for a filter condition.
- *
- * @constructor
- * @param {!module:ol/format/filter/Filter} condition Filter condition.
- * @extends {module:ol/format/filter/Filter}
- * @api
  */
-class Not {
+class Not extends Filter {
 
+  /**
+   * @param {!module:ol/format/filter/Filter} condition Filter condition.
+   * @api
+   */
   constructor(condition) {
 
-    Filter.call(this, 'Not');
+    super('Not');
 
     /**
      * @type {!module:ol/format/filter/Filter}
@@ -28,5 +26,4 @@ class Not {
 
 }
 
-inherits(Not, Filter);
 export default Not;
diff --git a/src/ol/format/filter/NotEqualTo.js b/src/ol/format/filter/NotEqualTo.js
index e0abaaa69a..d66ca80ad3 100644
--- a/src/ol/format/filter/NotEqualTo.js
+++ b/src/ol/format/filter/NotEqualTo.js
@@ -1,28 +1,24 @@
 /**
  * @module ol/format/filter/NotEqualTo
  */
-import {inherits} from '../../util.js';
 import ComparisonBinary from '../filter/ComparisonBinary.js';
 
 /**
  * @classdesc
  * Represents a `<PropertyIsNotEqualTo>` comparison operator.
- *
- * @constructor
- * @param {!string} propertyName Name of the context property to compare.
- * @param {!(string|number)} expression The value to compare.
- * @param {boolean=} opt_matchCase Case-sensitive?
- * @extends {module:ol/format/filter/ComparisonBinary}
- * @api
  */
-class NotEqualTo {
+class NotEqualTo extends ComparisonBinary {
 
+  /**
+   * @param {!string} propertyName Name of the context property to compare.
+   * @param {!(string|number)} expression The value to compare.
+   * @param {boolean=} opt_matchCase Case-sensitive?
+   * @api
+   */
   constructor(propertyName, expression, opt_matchCase) {
-    ComparisonBinary.call(this, 'PropertyIsNotEqualTo', propertyName, expression, opt_matchCase);
+    super('PropertyIsNotEqualTo', propertyName, expression, opt_matchCase);
   }
 
 }
 
-inherits(NotEqualTo, ComparisonBinary);
-
 export default NotEqualTo;
diff --git a/src/ol/format/filter/Or.js b/src/ol/format/filter/Or.js
index 98952613cc..6f2543d2aa 100644
--- a/src/ol/format/filter/Or.js
+++ b/src/ol/format/filter/Or.js
@@ -1,27 +1,23 @@
 /**
  * @module ol/format/filter/Or
  */
-import {inherits} from '../../util.js';
 import LogicalNary from '../filter/LogicalNary.js';
 
 /**
  * @classdesc
  * Represents a logical `<Or>` operator between two ore more filter conditions.
- *
- * @constructor
- * @param {...module:ol/format/filter/Filter} conditions Conditions.
- * @extends {module:ol/format/filter/LogicalNary}
- * @api
  */
-class Or {
+class Or extends LogicalNary {
 
+  /**
+   * @param {...module:ol/format/filter/Filter} conditions Conditions.
+   * @api
+   */
   constructor(conditions) {
     const params = ['Or'].concat(Array.prototype.slice.call(arguments));
-    LogicalNary.apply(this, params);
+    super(...params);
   }
 
 }
 
-inherits(Or, LogicalNary);
-
 export default Or;
diff --git a/src/ol/format/filter/Spatial.js b/src/ol/format/filter/Spatial.js
index 2bf67267b8..79f28b6110 100644
--- a/src/ol/format/filter/Spatial.js
+++ b/src/ol/format/filter/Spatial.js
@@ -1,7 +1,6 @@
 /**
  * @module ol/format/filter/Spatial
  */
-import {inherits} from '../../util.js';
 import Filter from '../filter/Filter.js';
 
 /**
@@ -10,20 +9,20 @@ import Filter from '../filter/Filter.js';
  * Represents a spatial operator to test whether a geometry-valued property
  * relates to a given geometry.
  *
- * @constructor
  * @abstract
- * @param {!string} tagName The XML tag name for this filter.
- * @param {!string} geometryName Geometry name to use.
- * @param {!module:ol/geom/Geometry} geometry Geometry.
- * @param {string=} opt_srsName SRS name. No srsName attribute will be
- *    set on geometries when this is not provided.
- * @extends {module:ol/format/filter/Filter}
  */
-class Spatial {
+class Spatial extends Filter {
 
+  /**
+   * @param {!string} tagName The XML tag name for this filter.
+   * @param {!string} geometryName Geometry name to use.
+   * @param {!module:ol/geom/Geometry} geometry Geometry.
+   * @param {string=} opt_srsName SRS name. No srsName attribute will be
+   *    set on geometries when this is not provided.
+   */
   constructor(tagName, geometryName, geometry, opt_srsName) {
 
-    Filter.call(this, tagName);
+    super(tagName);
 
     /**
      * @type {!string}
@@ -43,6 +42,4 @@ class Spatial {
 
 }
 
-inherits(Spatial, Filter);
-
 export default Spatial;