Kind code

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In patent law, a kind code, or WIPO Standard ST.16 code, is a code used on patent documents published by intellectual property offices to distinguish different kinds of patent documents. [1] [2] A kind code includes a letter, and in many cases a number, used to distinguish the kind of patent document (e.g., publication of an application for a utility patent (patent application publication), patent, plant patent application publication, plant patent, or design patent) and the level of publication (e.g., first publication, second publication, or corrected publication). [1] The recommended use is the two-letter country code followed by the patent document number and then the kind code, e.g., "US 7,654,321 B1" for U.S. Patent No. 7,654,321 where there was no previously-published patent application publication, and "US 2003/1234567 A1" for U.S. Patent Application Publication No. 2003/1234567, published in 2003. [1]

Contents

In the European Patent Office

The European Patent Office (EPO) uses kind codes such as the following. Kind codes for patent applications begin with A and include

Kind codes for granted patents begin with B and chiefly include B1 for a European patent specification (granted patent). [3]

In Japan

The Japan Patent Office (JPO) uses kind codes including

In the United States

In the United States, effective January 2, 2001, the kind codes indicate a variety of documents published by the United States Patent and Trademark Office (USPTO), most importantly patent application publications and patents. The kind codes include

Before January 2, 2001, the kind code for issued patents was A. [1]

PCT documents

For publications of international patent applications filed under the Patent Cooperation Treaty, the kind codes include

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References

  1. 1 2 3 4 5 "Kind Codes" Included on the USPTO Patent Documents, from the United States Patent and Trademark Office
  2. ↑ Standard ST.16, from the World Intellectual Property Organization
  3. 1 2 Kind codes, from the European Patent Office
  4. ↑ JP Authority File, from the Japan Patent Office
  5. ↑ Kind Codes
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