Inventor
CHANG CHING-JEN
US12 patents
⚠️ This page may combine multiple inventors who share the name “CHANG CHING-JEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ROHM & HAAS
10 patentsUS4421902ADec 20, 1983
Alkyl, poly(oxyethylene) poly(carbonyloxyethylene) acrylate emulsion copolymers for thickening purposes
ROHM & HAAS183 citations98
US6384104B1May 7, 2002
Method for preparing ultraviolet radiation-absorbing compositions
ROHM & HAAS64 citations95
US4429097AJan 31, 1984
Alkyl poly(oxyalkylene) esters of acrylate oligomers and copolymers thereof for thickening purposes
ROHM & HAAS78 citations95
US4423199ADec 27, 1983
Acrylamide containing emulsion copolymers for thickening purposes
ROHM & HAAS78 citations95
US6214328B1Apr 10, 2001
Stiff-feel hair styling compositions
ROHM & HAAS56 citations94
US4663385AMay 5, 1987
Process for thickening with copolymers of alkyl poly (oxyalkylene) itaconic di-esters
ROHM & HAAS31 citations92
US4914170AApr 3, 1990
Superabsorbent polymeric compositions and process for producing the same
ROHM & HAAS92 citations91
US6368575B2Apr 9, 2002
Method for inhibiting corrosion in an aqueous aerosol or foam hair styling composition
ROHM & HAAS14 citations82
US7312259B2Dec 25, 2007
Process for manufacturing polymers
ROHM & HAAS2 citations57
US7932222B2Apr 26, 2011
Triggered response compositions
ROHM & HAAS0 citations41