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  • What are the different types of United States patents?
  • The most common type of patent is a utility patent. Utility patents protect function, usually in a device or method. A utility patent may be filed either as a provisional patent application or a standard patent application. The next most common is a design patent, which protects aesthetic appearances. A third, highly uncommon, patent exists. This is a plant patent, which protects asexually reproduced plants such as roses.

    Updated: 11/12/99
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