FAQs Patent Questions

Question:What's a land patent?

Answer:
Land patents document the transfer of land ownership from the federal government to individuals. Our land patent records include the information recorded when ownership was transferred.

Question:How can I find out the inventor's name of a particular patent?

Answer:
Search may also be conducted at a Patent and Trademark Depository Library (PTDL) established throughout the United States. These libraries have copies of patents in multiple formats arranged in numerical order. They also have classification search tools, automated search aids, and photocopy facilities available to the public.

Question:How do I search for a particular type of patent, e.g., a design patent?

Answer:
To search for a particular type of patent, go to any one of the three search pages (Quick, Advanced, Number) and, in the appropriate patent number field (Patent Number, PN/, Query), enter the patent number including the appropriate prefix: 'D' for design patents, 'PP' for plant patents, 'R' for reissue patents, 'T' for defensive publications, 'H' for SIRs, 'X' for X patents, or 'AI' for Additional Improvements

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Contact our Patent Professionals to ensure you complete the patent filing process correctly or for violation of your patent rights.