<div dir="ltr">The assignment search at the USPTO has been broken for a while now.<div><br></div><div> But mistakes do happen on the prosecution side, rarely. Over the past 20+ years I have noticed it happen at least 3 times that I remember.</div><div><br></div><div> You can always check the reel and frame if there is a mistake in any of the numbers.</div><div><br></div><div>1. Personally, I compare the assignment and the cover sheet once the application has been published (this wasn't always the case).</div><div>2. I also use patsnap to keep track of my portfolio and notice when someone accidentally claims ownership of one of my patents.</div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Fri, Jan 10, 2025 at 5:04\u202fAM William Ahmed via Patentpractice <<a href="mailto:patentpractice@oppedahl-lists.com">patentpractice@oppedahl-lists.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div style="font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:13px"><div dir="ltr">We filed a patent application in 2023 which matured into a granted US patent in Q4 2024.</div><div dir="ltr"><br></div><div dir="ltr">During a due diligence, we searched for the assignment of the granted patent at THIS link --></div><div dir="ltr"><br></div><div dir="ltr"><span><span style="font-size:13px"><a href="https://assignment.uspto.gov/patent/index.html#/patent/search" target="_blank">https://assignment.uspto.gov/patent/index.html#/patent/search</a></span></span><br></div><div dir="ltr"><br></div><div dir="ltr">We typed in the patent number, and the results were the 'no assignment was filed'</div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">That didn't make sense - we DID submit an assignment shortly after filing the application in 2023, and this assignment was processed by the USPTO.</div><div dir="ltr"><br></div><div dir="ltr">After wasting more time, we did a search again, this time listing the APPLICATION NUMBER (rather than the patent number).</div><div dir="ltr">When we searched by application number, we were able to see the frame and reel number.</div><div dir="ltr"><br></div><div dir="ltr">Very surprising</div><div dir="ltr"><br></div></div></div>-- <br>
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