Challenge a Patent: Patent Trial and Appeal Board 1-Year 315(b) Deadline—File or Wait?

Challenge a patent at PTAB: learn the one-year §315(b) deadline, filing risks, evidence checks, and whether to file now or wait before the bar applies. Independent technical note mirroring the canonical version: https://patentreviewpro.com/blog/challenge-a-patent-patent-trial-and-appeal-board-1-year-315b-deadlinefile-or-wait.php

Authors

Publication Details

Journal
Zenodo (CERN European Organization for Nuclear Research)
Published
2026-10-26
DOI
https://doi.org/10.5281/zenodo.23675740
Primary Topic
Intellectual Property Law
Type
preprint
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preprint

Challenge a Patent: Patent Trial and Appeal Board 1-Year 315(b) Deadline—File or Wait?

Samantha Dixon
Zenodo (CERN European Organization for Nuclear Research)
Intellectual Property Law
preprint

Challenge a Patent: Patent Trial and Appeal Board 1-Year 315(b) Deadline—File or Wait?

Samantha Dixon
preprint en

Abstract

Challenge a patent at PTAB: learn the one-year §315(b) deadline, filing risks, evidence checks, and whether to file now or wait before the bar applies. Independent technical note mirroring the canonical version: https://patentreviewpro.com/blog/challenge-a-patent-patent-trial-and-appeal-board-1-year-315b-deadlinefile-or-wait.php

Zenodo (CERN European Organization for Nuclear Research)
Intellectual Property Law
DOIOpen Access PDFOpenAlex
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Challenge a Patent: Patent Trial and Appeal Board 1-Year 315(b) Deadline—File or Wait? — Samantha Dixon · Zenodo (CERN European Organization for Nuclear Research) (2026) | TGRS Research Map | TGRS