Inventor
HOFFMAN RICHARD A
12 patents
⚠️ This page may combine multiple inventors who share the name “HOFFMAN RICHARD A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WESTINGHOUSE ELECTRIC CORP
7 patentsUS4737252AApr 12, 1988
Method of coating a metallic article of merchandise with a protective transparent film of abrasion-resistance material
WESTINGHOUSE ELECTRIC CORP73 citations95
US4533605AAug 6, 1985
Article such as jewelry or a wristwatch component having composite multi-film protective coating
WESTINGHOUSE ELECTRIC CORP41 citations92
US4517217AMay 14, 1985
Protective coating means for articles such as gold-plated jewelry and wristwatch components
WESTINGHOUSE ELECTRIC CORP48 citations92
US4495254AJan 22, 1985
Protectively-coated gold-plated article of jewelry or wristwatch component
WESTINGHOUSE ELECTRIC CORP41 citations92
US4072782AFeb 7, 1978
Composite erosion resistant optical window
WESTINGHOUSE ELECTRIC CORP21 citations81
US4214818AJul 29, 1980
Hot pressed SiC-high power laser mirror
WESTINGHOUSE ELECTRIC CORP28 citations80
US4142006AFeb 27, 1979
Method of making a high power laser mirror
WESTINGHOUSE ELECTRIC CORP22 citations80