Inventor
DREWES ROLF
CH16 patents
⚠️ This page may combine multiple inventors who share the name “DREWES ROLF”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CIBA GEIGY CORP
7 patentsUS5519077AMay 21, 1996
Stabilized polyvinyl chloride
CIBA GEIGY CORP53 citations94
US5543449AAug 6, 1996
Stabilized flexible PVC
CIBA GEIGY CORP30 citations91
US5534566AJul 9, 1996
Stabilized halogen-containing polymers
CIBA GEIGY CORP27 citations91
US5492949AFeb 20, 1996
Stabilized polyvinyl chloride
CIBA GEIGY CORP20 citations89
US5344992ASep 6, 1994
Process for the preparation of linear 1,3-diketones
CIBA GEIGY CORP42 citations89
US5288776AFeb 22, 1994
Substituted pyrroles as stabilisers for chlorinated polymers
CIBA GEIGY CORP7 citations74
US5322964AJun 21, 1994
Process for the preparation of alpha-aminoketone salts
CIBA GEIGY CORP2 citations63
WITCO VINYL ADDITIVES GMBH
5 patentsUS6194494B1Feb 27, 2001
Stabiliser combinations for chlorine-containing polymers
WITCO VINYL ADDITIVES GMBH51 citations94
US6174941B1Jan 16, 2001
NH2-modified 6-aminouracils as stabilizers for halogenated polymers
WITCO VINYL ADDITIVES GMBH25 citations92
US5985964ANov 16, 1999
Stabilized polyvinyl chloride containing recycled material
WITCO VINYL ADDITIVES GMBH11 citations74
US6310128B1Oct 30, 2001
Halogen-containing polymers provided with an antistatic agent
WITCO VINYL ADDITIVES GMBH10 citations73
US6002004ADec 14, 1999
Pyrrolodiazine derivatives as stabilizers for chilorine-containing polymers
WITCO VINYL ADDITIVES GMBH4 citations63