Inventor
EWING WILLIAM S
US5 patents
⚠️ This page may combine multiple inventors who share the name “EWING WILLIAM S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PPG INDUSTRIES INC
3 patentsUS4889890ADec 26, 1989
Powder coating curing system containing a beta-hydroxyalkylamide
PPG INDUSTRIES INC63 citations95
US5055524AOct 8, 1991
Polyol-modified polyanhydride curing agent for polyepoxide powder coatings
PPG INDUSTRIES INC32 citations92
US5013791AMay 7, 1991
Beta-hydroxyalkylamide cured acid polymer/polyepoxide powder coating
PPG INDUSTRIES INC23 citations91