diff --git a/src/LEGO.AsyncAPI.Readers/V2/AsyncApiSchemaDeserializer.cs b/src/LEGO.AsyncAPI.Readers/V2/AsyncApiSchemaDeserializer.cs
index 582016eb..2131eb7e 100644
--- a/src/LEGO.AsyncAPI.Readers/V2/AsyncApiSchemaDeserializer.cs
+++ b/src/LEGO.AsyncAPI.Readers/V2/AsyncApiSchemaDeserializer.cs
@@ -130,7 +130,7 @@ public class JsonSchemaDeserializer
                 {
                     if (n is ValueNode && n.GetBooleanValueOrDefault(null) == false)
                     {
-                        a.AdditionalProperties = new NoAdditionalProperties();
+                        a.AdditionalProperties = new FalseApiSchema();
                     }
                     else
                     {
@@ -139,7 +139,36 @@ public class JsonSchemaDeserializer
                 }
             },
             {
-                "items", (a, n) => { a.Items = LoadSchema(n); }
+                "items", (a, n) =>
+                {
+                    if (n is ValueNode && n.GetBooleanValueOrDefault(null) == false)
+                    {
+                        a.Items = new FalseApiSchema();
+                    }
+                    else
+                    {
+                        a.Items = LoadSchema(n);
+                    }
+                }
+            },
+            {
+                "additionalItems", (a, n) =>
+                {
+                    if (n is ValueNode && n.GetBooleanValueOrDefault(null) == false)
+                    {
+                        a.AdditionalItems = new FalseApiSchema();
+                    }
+                    else
+                    {
+                        a.AdditionalItems = LoadSchema(n);
+                    }
+                }
+            },
+            {
+                "patternProperties", (a, n) => { a.PatternProperties = n.CreateMap(LoadSchema); }
+            },
+            {
+                "propertyNames", (a, n) => { a.PropertyNames = LoadSchema(n); }
             },
             {
                 "contains", (a, n) => { a.Contains = LoadSchema(n); }
diff --git a/src/LEGO.AsyncAPI/Models/AsyncApiConstants.cs b/src/LEGO.AsyncAPI/Models/AsyncApiConstants.cs
index 2d3ae13c..37b1b45d 100644
--- a/src/LEGO.AsyncAPI/Models/AsyncApiConstants.cs
+++ b/src/LEGO.AsyncAPI/Models/AsyncApiConstants.cs
@@ -138,5 +138,8 @@ public static class AsyncApiConstants
         public const string MaxMessageBytes = "max.message.bytes";
         public const string TopicConfiguration = "topicConfiguration";
         public const string GeoReplication = "geo-replication";
+        public const string AdditionalItems = "additionalItems";
+        public const string PropertyNames = "propertyNames";
+        public const string PatternProperties = "patternProperties";
     }
 }
diff --git a/src/LEGO.AsyncAPI/Models/AsyncApiSchema.cs b/src/LEGO.AsyncAPI/Models/AsyncApiSchema.cs
index 1de5542b..85fcc13c 100644
--- a/src/LEGO.AsyncAPI/Models/AsyncApiSchema.cs
+++ b/src/LEGO.AsyncAPI/Models/AsyncApiSchema.cs
@@ -159,6 +159,13 @@ public class AsyncApiSchema : IAsyncApiReferenceable, IAsyncApiExtensible, IAsyn
         /// </summary>
         public AsyncApiSchema Items { get; set; }
 
+        /// <summary>
+        /// follow JSON Schema definition: https://json-schema.org/draft-07/json-schema-release-notes.html
+        /// Value MUST be an object and not an array. Inline or referenced schema MUST be of a Schema Object
+        /// and not a standard JSON Schema. items MUST be present if the type is array.
+        /// </summary>
+        public AsyncApiSchema AdditionalItems { get; set; }
+
         /// <summary>
         /// follow JSON Schema definition: https://json-schema.org/draft-07/json-schema-release-notes.html.
         /// </summary>
@@ -197,6 +204,8 @@ public class AsyncApiSchema : IAsyncApiReferenceable, IAsyncApiExtensible, IAsyn
         /// </summary>
         public AsyncApiSchema AdditionalProperties { get; set; }
 
+        public IDictionary<string, AsyncApiSchema> PatternProperties { get; set; } = new Dictionary<string, AsyncApiSchema>();
+
         /// <summary>
         /// follow JSON Schema definition: https://json-schema.org/draft-07/json-schema-release-notes.html.
         /// </summary>
@@ -335,7 +344,24 @@ public void SerializeV2WithoutReference(IAsyncApiWriter writer)
             writer.WriteOptionalCollection(AsyncApiConstants.Required, this.Required, (w, s) => w.WriteValue(s));
 
             // items
-            writer.WriteOptionalObject(AsyncApiConstants.Items, this.Items, (w, s) => s.SerializeV2(w));
+            if (this.Items is FalseApiSchema)
+            {
+                writer.WriteOptionalProperty<bool>(AsyncApiConstants.Items, false);
+            }
+            else
+            {
+                writer.WriteOptionalObject(AsyncApiConstants.Items, this.Items, (w, s) => s.SerializeV2(w));
+            }
+
+            // additionalItems
+            if (this.AdditionalItems is FalseApiSchema)
+            {
+                writer.WriteOptionalProperty<bool>(AsyncApiConstants.AdditionalItems, false);
+            }
+            else
+            {
+                writer.WriteOptionalObject(AsyncApiConstants.AdditionalItems, this.AdditionalItems, (w, s) => s.SerializeV2(w));
+            }
 
             // maxItems
             writer.WriteOptionalProperty(AsyncApiConstants.MaxItems, this.MaxItems);
@@ -356,7 +382,7 @@ public void SerializeV2WithoutReference(IAsyncApiWriter writer)
             writer.WriteOptionalProperty(AsyncApiConstants.MinProperties, this.MinProperties);
 
             // additionalProperties
-            if (this.AdditionalProperties is NoAdditionalProperties)
+            if (this.AdditionalProperties is FalseApiSchema)
             {
                 writer.WriteOptionalProperty<bool>(AsyncApiConstants.AdditionalProperties, false);
             }
@@ -365,6 +391,10 @@ public void SerializeV2WithoutReference(IAsyncApiWriter writer)
                 writer.WriteOptionalObject(AsyncApiConstants.AdditionalProperties, this.AdditionalProperties, (w, s) => s.SerializeV2(w));
             }
 
+            writer.WriteOptionalMap(AsyncApiConstants.PatternProperties, this.PatternProperties, (w, s) => s.SerializeV2(w));
+
+            writer.WriteOptionalObject(AsyncApiConstants.PropertyNames, this.PropertyNames, (w, s) => s.SerializeV2(w));
+
             // discriminator
             writer.WriteOptionalProperty(AsyncApiConstants.Discriminator, this.Discriminator);
 
diff --git a/src/LEGO.AsyncAPI/Models/JsonSchema/FalseApiSchema.cs b/src/LEGO.AsyncAPI/Models/JsonSchema/FalseApiSchema.cs
new file mode 100644
index 00000000..40746fb3
--- /dev/null
+++ b/src/LEGO.AsyncAPI/Models/JsonSchema/FalseApiSchema.cs
@@ -0,0 +1,10 @@
+namespace LEGO.AsyncAPI.Models
+{
+    /// <summary>
+    /// An object representing 'false' for properties of AsyncApiSchema that can be false OR a schema.
+    /// </summary>
+    /// <seealso cref="AsyncApiSchema" />
+    public class FalseApiSchema : AsyncApiSchema
+    {
+    }
+}
diff --git a/src/LEGO.AsyncAPI/Models/JsonSchema/NoAdditionalProperties.cs b/src/LEGO.AsyncAPI/Models/JsonSchema/NoAdditionalProperties.cs
deleted file mode 100644
index 700d3351..00000000
--- a/src/LEGO.AsyncAPI/Models/JsonSchema/NoAdditionalProperties.cs
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) The LEGO Group. All rights reserved.
-
-namespace LEGO.AsyncAPI.Models
-{
-    /// <summary>
-    /// An object representing 'false' for the 'additionalProperties' property of AsyncApiSchema.
-    /// </summary>
-    /// <seealso cref="AsyncApiSchema" />
-    public class NoAdditionalProperties : AsyncApiSchema
-    {
-    }
-}
diff --git a/test/LEGO.AsyncAPI.Tests/Models/AsyncApiSchema_Should.cs b/test/LEGO.AsyncAPI.Tests/Models/AsyncApiSchema_Should.cs
index 4b99a465..31647d3e 100644
--- a/test/LEGO.AsyncAPI.Tests/Models/AsyncApiSchema_Should.cs
+++ b/test/LEGO.AsyncAPI.Tests/Models/AsyncApiSchema_Should.cs
@@ -71,7 +71,9 @@ public class AsyncApiSchema_Should
                             MaxLength = 15,
                         },
                     },
-                    AdditionalProperties = new NoAdditionalProperties(),
+                    AdditionalProperties = new FalseApiSchema(),
+                    Items = new FalseApiSchema(),
+                    AdditionalItems = new FalseApiSchema(),
                 },
                 ["property4"] = new AsyncApiSchema
                 {
@@ -93,6 +95,26 @@ public class AsyncApiSchema_Should
                             MinLength = 2,
                         },
                     },
+                    PatternProperties = new Dictionary<string, AsyncApiSchema>()
+                    {
+                        {
+                            "^S_",
+                            new AsyncApiSchema()
+                            {
+                                Type = SchemaType.String,
+                            }
+                        },
+                        {
+                            "^I_", new AsyncApiSchema()
+                            {
+                                Type = SchemaType.Integer,
+                            }
+                        },
+                    },
+                    PropertyNames = new AsyncApiSchema()
+                    {
+                        Pattern = "^[A-Za-z_][A-Za-z0-9_]*$",
+                    },
                     AdditionalProperties = new AsyncApiSchema
                     {
                         Properties = new Dictionary<string, AsyncApiSchema>
@@ -103,8 +125,28 @@ public class AsyncApiSchema_Should
                             },
                         },
                     },
+                    Items = new AsyncApiSchema
+                    {
+                        Properties = new Dictionary<string, AsyncApiSchema>
+                        {
+                            ["Property9"] = new AsyncApiSchema
+                            {
+                                Type = SchemaType.String | SchemaType.Null,
+                            },
+                        },
+                    },
+                    AdditionalItems = new AsyncApiSchema
+                    {
+                        Properties = new Dictionary<string, AsyncApiSchema>
+                        {
+                            ["Property10"] = new AsyncApiSchema
+                            {
+                                Type = SchemaType.String | SchemaType.Null,
+                            },
+                        },
+                    },
                 },
-                ["property9"] = new AsyncApiSchema
+                ["property11"] = new AsyncApiSchema
                 {
                     Const = new AsyncApiString("aSpecialConstant"),
                 },
@@ -387,6 +429,8 @@ public void SerializeAsJson_WithAdvancedSchemaObject_V2Works()
   ""title"": ""title1"",
   ""properties"": {
     ""property1"": {
+      ""items"": false,
+      ""additionalItems"": false,
       ""properties"": {
         ""property2"": {
           ""type"": ""integer""
@@ -399,6 +443,26 @@ public void SerializeAsJson_WithAdvancedSchemaObject_V2Works()
       ""additionalProperties"": false
     },
     ""property4"": {
+      ""items"": {
+        ""properties"": {
+          ""Property9"": {
+            ""type"": [
+              ""null"",
+              ""string""
+            ]
+          }
+        }
+      },
+      ""additionalItems"": {
+        ""properties"": {
+          ""Property10"": {
+            ""type"": [
+              ""null"",
+              ""string""
+            ]
+          }
+        }
+      },
       ""properties"": {
         ""property5"": {
           ""properties"": {
@@ -421,9 +485,20 @@ public void SerializeAsJson_WithAdvancedSchemaObject_V2Works()
             ]
           }
         }
+      },
+      ""patternProperties"": {
+        ""^S_"": {
+          ""type"": ""string""
+        },
+        ""^I_"": {
+          ""type"": ""integer""
+        }
+      },
+      ""propertyNames"": {
+        ""pattern"": ""^[A-Za-z_][A-Za-z0-9_]*$""
       }
     },
-    ""property9"": {
+    ""property11"": {
       ""const"": ""aSpecialConstant""
     }
   },
@@ -443,13 +518,15 @@ public void SerializeAsJson_WithAdvancedSchemaObject_V2Works()
         }
 
         [Test]
-        public void Deserialize_WithAdditionalProperties_Works()
+        public void Deserialize_WithAdvancedSchema_Works()
         {
             // Arrange
             var json = @"{
   ""title"": ""title1"",
   ""properties"": {
     ""property1"": {
+      ""items"": false,
+      ""additionalItems"": false,
       ""properties"": {
         ""property2"": {
           ""type"": ""integer""
@@ -462,6 +539,26 @@ public void Deserialize_WithAdditionalProperties_Works()
       ""additionalProperties"": false
     },
     ""property4"": {
+      ""items"": {
+        ""properties"": {
+          ""Property9"": {
+            ""type"": [
+              ""null"",
+              ""string""
+            ]
+          }
+        }
+      },
+      ""additionalItems"": {
+        ""properties"": {
+          ""Property10"": {
+            ""type"": [
+              ""null"",
+              ""string""
+            ]
+          }
+        }
+      },
       ""properties"": {
         ""property5"": {
           ""properties"": {
@@ -484,9 +581,20 @@ public void Deserialize_WithAdditionalProperties_Works()
             ]
           }
         }
+      },
+      ""patternProperties"": {
+        ""^S_"": {
+          ""type"": ""string""
+        },
+        ""^I_"": {
+          ""type"": ""integer""
+        }
+      },
+      ""propertyNames"": {
+        ""pattern"": ""^[A-Za-z_][A-Za-z0-9_]*$""
       }
     },
-    ""property9"": {
+    ""property11"": {
       ""const"": ""aSpecialConstant""
     }
   },