P

Inventor

SPERRY JOHN A

GB4 patents
⚠️ This page may combine multiple inventors who share the name “SPERRY JOHN A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

AUTOTYPE INT LTD

3 patents
US4478977AOct 23, 1984

Photopolymer derivatives of polyvinyl alcohol

AUTOTYPE INT LTD14 citations69
US4477552AOct 16, 1984

Stabilization of diazo-resin sensitizers with polyvinyl pyridine

AUTOTYPE INT LTD12 citations67
US5043362AAug 27, 1991

Photopolymerizable compositions

AUTOTYPE INT LTD4 citations56

SPERRY JOHN A

1 patent
US4824765AApr 25, 1989

Water-soluble photoinitiators

SPERRY JOHN A77 citations88