Inventor · disambiguated record
John Hafen
Also filed as: HAFEN JOHN
6 granted patents·1 pending application·7 citations·filing 2017–2024
75Inventor score
Technology areasF41A
Files withHAFEN JOHN7
Top patents by PatentIndex Score
7 records- 0173US10260830B2Smart-gun systems and methodsHAFEN JOHN·Filed 2017·Granted Apr 16, 2019·5 cites·20 claims
- 0261US10976122B2Smart-gun enablement device systems and methodsHAFEN JOHN·Filed 2019·Granted Apr 13, 2021·2 cites·20 claims
- 0358US12467704B2Smart-gun artificial intelligence systems and methodsHAFEN JOHN·Filed 2024·Granted Nov 11, 2025·0 cites·17 claims
- 0456US2021222979A1Smart-gun enablement device systems and methodsHAFEN JOHN·Filed 2021·Application pending·0 cites
- 0555US11441861B2Smart-gun locking and unlocking systems and methodsHAFEN JOHN·Filed 2020·Granted Sep 13, 2022·0 cites·17 claims
- 0644US10712110B2Smart-gun locking and unlocking systems and methodsHAFEN JOHN·Filed 2019·Granted Jul 14, 2020·0 cites·17 claims
- 0744US10634443B2Smart-gun systems and methodsHAFEN JOHN·Filed 2019·Granted Apr 28, 2020·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →