Inventor
CHANG TIANG SHING
US13 patents
⚠️ This page may combine multiple inventors who share the name “CHANG TIANG SHING”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BLOCK DRUG CO
12 patentsUS4521551AJun 4, 1985
Denture fixative composition containing partially neutralized copolymers of maleic acid or anhydride and alkyl vinyl ethers which are optionally partially crosslinked
BLOCK DRUG CO62 citations94
US4373036AFeb 8, 1983
Denture fixative composition
BLOCK DRUG CO174 citations94
US4310516AJan 12, 1982
Cosmetic and pharmaceutical vehicle thickened with solid emulsifier
BLOCK DRUG CO58 citations94
US5750591AMay 12, 1998
Denture adhesive containing partial zirconium, calcium, sodium gantrez salt
BLOCK DRUG CO44 citations92
US5188755AFeb 23, 1993
Surface erodible controlled releasing, free standing cleansing block and cleaning method for the domestic water closet
BLOCK DRUG CO49 citations92
US5696181ADec 9, 1997
Denture fixative
BLOCK DRUG CO23 citations89
US4950697AAug 21, 1990
Thermoplastic and injectable endodontic filling compositions
BLOCK DRUG CO44 citations87
US4986754AJan 22, 1991
Thermoplastic and injectable endodontic filling compositions
BLOCK DRUG CO42 citations86
US4544356AOct 1, 1985
Reciprocating dental prophylactic angular device
BLOCK DRUG CO28 citations86
US4542168ASep 17, 1985
Denture fixative composition with partially neutralized and crosslinked polyacrylic acid
BLOCK DRUG CO20 citations79
US4470814ASep 11, 1984
Method of adhering dentures
BLOCK DRUG CO15 citations71
US5120528AJun 9, 1992
Taste preserving, mild oral hygiene compositions
BLOCK DRUG CO14 citations68