Examples of Design Patents

design patent is heavily dependent upon the drawings to communicate the
features sought to be protected (as opposed to utility patents which
rely on the written word to describe how the good is new and unique). 
The focus of the design patent is on the ornamental design of an
article, namely, the visual characteristics or aspects of an object. 
The filing fee for a design patent starts at $390.00, plus legal fees. 
Here are a few examples:

Automobile Hood, SLP Performance Parts, Inc.  [Design Patent No. D418,465]

Vehicle Wheel Front Face, American Racing Equipment, Inc. 
[Design Patent No. D367,461]

Cylindrical Pleated Air Filter With Top and Sidewall Filtering Areas,
K & N Engineering, Inc.   [Design Patent No. D403,414]

 o Benefits of Design Patent Registration:  Like the
trademark registration, a valid design patent shows that you are the
true owner of the ornamentation that adorns the product.  U.S. courts
will accept the patent as proof of the exclusivity of the design.  Once
again, it is the mechanism that allows you to protect your unique
intellectual property and then seek protection in the courts.

Examples of Utility Patents

A utility patent protects an object’s structure or utilitarian
features, but not its ornamental appearance.  In other words, it
protects how an object operates or functions.

Kearns:  Delayed Windshield Wiper System – Patent No. 4,339,698

Humphreys, Breed, and Thuen:  Air Bag Assembly for Motor Vehicles – Patent No. 5,348,340

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