Short Summary
Good Sportsman Marketing petitions the PTAB to invalidate Hangzhou ZH Tech’s ’855 patent covering a walkie‑talkie mount for earmuffs, asserting obviousness, indefiniteness, and lack of enablement/written description across all 19 claims.
Detailed Summary
In a Post‑Grant Review petition (PGR2024‑00034), Good Sportsman Marketing, LLC challenges U.S. Patent No. 11,736,855 owned by Hangzhou ZH Tech Co., Ltd. The patent claims a communication device (e.g., walkie‑talkie) releasably connectable to hearing‑protection equipment using a torsion‑spring‑biased mounting assembly. The petitioner argues that claims 1‑19 are obvious over the prior‑art Unger and Smith references, with claim 18 further obvious when combined with Hakansson. Additional grounds allege indefiniteness of claims 3‑6, 8‑9, 16 under §112(b) and lack of enablement and written‑description support for claim 10 under §112(a). The petition seeks institution of the trial and cancellation of all challenged claims.
Practitioner Note
This case demonstrates the evidentiary and procedural standards applied in patent matters before local courts. Understanding the court's reasoning in Good Sportsman Marketing, LLC vs -- is valuable context for structuring arguments or assessing risk in similar proceedings.
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