Inventor · disambiguated record
Charles D. Hewitt
Also filed as: HEWITT CHARLES · HEWITT CHARLES D
7 granted patents·225 citations·filing 1984–2007
87Inventor score
Files withAMERICAN ALLSAFE CO2BROWN DERYL K1ENCON MFG INC1ENCON SAFETY PRODUCTS INC1MARCONI GEC LTD1
Top patents by PatentIndex Score
7 records- 0190USD293504SVentilated splash gogglesENCON MFG INC·Filed 1984·Granted Jan 5, 1988·35 cites·1 claims
- 0287US5442556AAircraft terrain and obstacle avoidance systemsMARCONI GEC LTD·Filed 1992·Granted Aug 15, 1995·116 cites·4 claims
- 0374USD347233SSafety gogglesAMERICAN ALLSAFE CO·Filed 1992·Granted May 24, 1994·18 cites·1 claims
- 0455US8688506B2Determining tailored pricing for retail energy marketBROWN DERYL K·Filed 2007·Granted Apr 1, 2014·2 cites·23 claims
- 0552USD512930SSafety barrierTESTECH INC·Filed 2004·Granted Dec 20, 2005·9 cites·1 claims
- 0642US5216759ASafety goggles lens retentionAMERICAN ALLSAFE CO·Filed 1992·Granted Jun 8, 1993·35 cites·5 claims
- 0732US4945577AVentilated splash goggleENCON SAFETY PRODUCTS INC·Filed 1984·Granted Aug 7, 1990·10 cites·16 claims
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