Inventor · disambiguated record
Charles O'Brien
Also filed as: O'BRIEN CHARLES · O'BRIEN CHARLES B
3 granted patents·306 citations·filing 1982–1998
78Inventor score
Top patents by PatentIndex Score
3 records- 0193US5953761AProtective headgearAMPAC ENTERPRISES INC·Filed 1998·Granted Sep 21, 1999·204 cites·41 claims
- 0289USD412376SProtective headgearAMPAC ENTPR INC·Filed 1998·Granted Jul 27, 1999·51 cites·1 claims
- 0373US4455791AProtective cover for guttersELKO GEORGE A·Filed 1982·Granted Jun 26, 1984·51 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →