diff --git a/packages/blocks/src/api/registration.js b/packages/blocks/src/api/registration.js
index 7770d59bfd46e..0149b91c3929c 100644
--- a/packages/blocks/src/api/registration.js
+++ b/packages/blocks/src/api/registration.js
@@ -98,7 +98,7 @@ import { DEPRECATED_ENTRY_KEYS } from './constants';
  * @property {WPComponent}      edit         Component rendering an element to
  *                                           manipulate the attributes of a block
  *                                           in the context of an editor.
- * @property {WPBlockPattern[]} patterns
+ * @property {WPBlockPattern[]} [patterns]   The list of block patterns.
  */
 
 /**
@@ -465,7 +465,7 @@ export const unregisterBlockStyle = ( blockName, styleVariationName ) => {
  * @param {string}         blockName Name of the block (example: “core/columns”).
  * @param {WPBlockPattern} pattern   Object describing a block pattern.
  */
-export const registerBlockPattern = ( blockName, pattern ) => {
+export const __experimentalRegisterBlockPattern = ( blockName, pattern ) => {
 	dispatch( 'core/blocks' ).addBlockPatterns( blockName, pattern );
 };
 
@@ -475,6 +475,6 @@ export const registerBlockPattern = ( blockName, pattern ) => {
  * @param {string} blockName   Name of the block (example: “core/columns”).
  * @param {string} patternName Name of the pattern defined for the block.
  */
-export const unregisterBlockPattern = ( blockName, patternName ) => {
+export const __experimentalUnregisterBlockPattern = ( blockName, patternName ) => {
 	dispatch( 'core/blocks' ).removeBlockPatterns( blockName, patternName );
 };
diff --git a/packages/blocks/src/store/actions.js b/packages/blocks/src/store/actions.js
index b321b3beded5b..c7b6ae42cb81b 100644
--- a/packages/blocks/src/store/actions.js
+++ b/packages/blocks/src/store/actions.js
@@ -71,7 +71,7 @@ export function removeBlockStyles( blockName, styleNames ) {
  *
  * @return {Object} Action object.
  */
-export function addBlockPatterns( blockName, patterns ) {
+export function __experimentalAddBlockPatterns( blockName, patterns ) {
 	return {
 		type: 'ADD_BLOCK_PATTERNS',
 		patterns: castArray( patterns ),
@@ -87,7 +87,7 @@ export function addBlockPatterns( blockName, patterns ) {
  *
  * @return {Object} Action object.
  */
-export function removeBlockPatterns( blockName, patternNames ) {
+export function __experimentalRemoveBlockPatterns( blockName, patternNames ) {
 	return {
 		type: 'REMOVE_BLOCK_PATTERNS',
 		patternNames: castArray( patternNames ),
diff --git a/packages/blocks/src/store/selectors.js b/packages/blocks/src/store/selectors.js
index 84540bb40c757..bf005a28499bb 100644
--- a/packages/blocks/src/store/selectors.js
+++ b/packages/blocks/src/store/selectors.js
@@ -60,13 +60,13 @@ export function getBlockStyles( state, name ) {
 /**
  * Returns block patterns by block name.
  *
- * @param {Object} state Data state.
- * @param {string} name  Block type name.
+ * @param {Object} state      Data state.
+ * @param {string} blockName  Block type name.
  *
- * @return {WPBlockPattern[]} Block Styles.
+ * @return {?(WPBlockPattern[])} Block patterns.
  */
-export function getBlockPattens( state, name ) {
-	return state.blockPatterns[ name ];
+export function __experimentalGetBlockPattens( state, blockName ) {
+	return state.blockPatterns[ blockName ];
 }
 
 /**
diff --git a/packages/blocks/src/store/test/actions.js b/packages/blocks/src/store/test/actions.js
index 40cef33ed2911..9e537432f406a 100644
--- a/packages/blocks/src/store/test/actions.js
+++ b/packages/blocks/src/store/test/actions.js
@@ -2,8 +2,8 @@
  * Internal dependencies
  */
 import {
-	addBlockPatterns,
-	removeBlockPatterns,
+	__experimentalAddBlockPatterns,
+	__experimentalRemoveBlockPatterns,
 } from '../actions';
 
 describe( 'actions', () => {
@@ -19,7 +19,7 @@ describe( 'actions', () => {
 					example: 'foo',
 				},
 			};
-			const result = addBlockPatterns( blockName, pattern );
+			const result = __experimentalAddBlockPatterns( blockName, pattern );
 			expect( result ).toEqual( {
 				type: 'ADD_BLOCK_PATTERNS',
 				patterns: [
@@ -30,7 +30,7 @@ describe( 'actions', () => {
 		} );
 
 		it( 'should return the REMOVE_BLOCK_PATTERNS action', () => {
-			const result = removeBlockPatterns( blockName, patternName );
+			const result = __experimentalRemoveBlockPatterns( blockName, patternName );
 			expect( result ).toEqual( {
 				type: 'REMOVE_BLOCK_PATTERNS',
 				patternNames: [
diff --git a/packages/blocks/src/store/test/reducer.js b/packages/blocks/src/store/test/reducer.js
index f7b0f1946daa9..2567903962d14 100644
--- a/packages/blocks/src/store/test/reducer.js
+++ b/packages/blocks/src/store/test/reducer.js
@@ -7,9 +7,9 @@ import deepFreeze from 'deep-freeze';
  * Internal dependencies
  */
 import {
-	addBlockPatterns,
+	__experimentalAddBlockPatterns,
 	addBlockTypes,
-	removeBlockPatterns,
+	__experimentalRemoveBlockPatterns,
 } from '../actions';
 import {
 	blockPatterns,
@@ -168,7 +168,7 @@ describe( 'blockPatterns', () => {
 
 		const state = blockPatterns(
 			initialState,
-			addBlockPatterns( blockName, blockPattern )
+			__experimentalAddBlockPatterns( blockName, blockPattern )
 		);
 
 		expect( state ).toEqual( {
@@ -187,7 +187,7 @@ describe( 'blockPatterns', () => {
 
 		const state = blockPatterns(
 			initialState,
-			addBlockPatterns( blockName, secondBlockPattern ),
+			__experimentalAddBlockPatterns( blockName, secondBlockPattern ),
 		);
 
 		expect( state ).toEqual( {
@@ -233,7 +233,7 @@ describe( 'blockPatterns', () => {
 
 		const state = blockPatterns(
 			initialState,
-			removeBlockPatterns( blockName, blockPatternName )
+			__experimentalRemoveBlockPatterns( blockName, blockPatternName )
 		);
 
 		expect( state ).toEqual( {
diff --git a/packages/blocks/src/store/test/selectors.js b/packages/blocks/src/store/test/selectors.js
index 493cd15af4d1d..05fc5a23040a8 100644
--- a/packages/blocks/src/store/test/selectors.js
+++ b/packages/blocks/src/store/test/selectors.js
@@ -5,7 +5,6 @@ import {
 	getChildBlockNames,
 	isMatchingSearchTerm,
 	getGroupingBlockName,
-
 } from '../selectors';
 
 describe( 'selectors', () => {