Some tags currently have it, and some do not:

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Let's standardize this. Additionally, we should decide whether or not to include the "A1" (which means that this is a patent's first filing) at the end of the patent number.

2 Answers 2


This site is interested in both issued patents and patent applications. The designations for them differ.

For a patent application, use the prepended year as shown on the PTO website http://appft.uspto.gov/netahtml/PTO/srchnum.html :

Example: Utility : 20010000044

For an issued patent the options vary, but the form we are most interested in is a 7-digit number as shown at http://patft.uspto.gov/netahtml/PTO/srchnum.htm :

All patent numbers must be seven characters in length, excluding commas, which are optional. Examples: Utility -- 5,146,634 6923014 0000001

The tags we use should follow these patterns. They could perhaps become links to PTO source materials.

  • 1
    What happens when a patent gets issued, but has previously been discussed here? Sep 20, 2012 at 16:13

I agree that we should use the patterns used by the USPTO. Additionally, each tag really should have a tag wiki briefly summarizing what the patent or patent application is for, as well as a link to the full text of the patent.

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