Inventor

HEWITT CHARLES D

US6 patents

⚠️ This page may combine multiple inventors who share the name “HEWITT CHARLES D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

AMERICAN ALLSAFE CO

2 patents

US5216759AJun 8, 1993

Safety goggles lens retention

AMERICAN ALLSAFE CO35 citations89

USD347233SMay 24, 1994

Safety goggles

AMERICAN ALLSAFE CO18 citations79

ENCON MFG INC

1 patent

USD293504SJan 5, 1988

Ventilated splash goggles

ENCON MFG INC35 citations88

ENCON SAFETY PRODUCTS INC

1 patent

US4945577AAug 7, 1990

Ventilated splash goggle

ENCON SAFETY PRODUCTS INC10 citations71

TESTECH INC

1 patent

USD512930SDec 20, 2005

Safety barrier

TESTECH INC9 citations64

BROWN DERYL K

1 patent

US8688506B2Apr 1, 2014

Determining tailored pricing for retail energy market

BROWN DERYL K2 citations42