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I'm on the publicpair website and I can't find the publication number for a specific patent I'm researching; is there a place where the pub. number is located, or am I supposed to somehow derive it?

  • Please just provide the patent number. That will help get a specific answer. – Eric Shain Jan 30 at 21:42
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In the application data tab it is the box labeled "Earliest Publication Number in the right hand column. The format used for these numbers starts with the year of publication.screen shot of the record of a patent application in Public PAIR

The publication number is US2002/181786A1.

  • I looked there, but the patent doesn't have a earliest pub. no.; it's just a -. – User Jan 30 at 3:25
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I'm on the publicpair website and I can't find the publication number for a specific patent I'm researching; is there a place where the pub. number is located, or am I supposed to somehow derive it?

Please check the year of application and grant of patent. USPTO started publishing patent application after 2001 if you are looking for patent that has been granted before that you may not find the publication.

Please also check for code PG.NONPUB.RQ in image file wrapper of public pair as an applicant can make an application under 35 USC 122 to keep publication confidential.

In addition to the data provided by @George White, the publication number is also available in patent first page

enter image description here

  • I looked at the patent page, but it doesn't have that prior publication data section. Everything else looks just like your example, but after the filed date it jumps straight to related U.S. application data. – User Jan 30 at 3:27
  • what is the application date? as i have said is patent granted before 2001 then you wont find prior publication. – RishiM_IPR Jan 30 at 3:34
  • Sorry, I forgot to mention that. The provisional application was filed in 2013. – User Jan 30 at 3:36
  • I see, thanks so much. The patent in question does indeed have the nonpublication document. Just to clarify, does this mean that there is no publication number for this patent? – User Jan 30 at 3:48
  • I would be unable to answer that until i have any reference/ document no – RishiM_IPR Jan 30 at 4:37

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