Inventor
CHAMPION DONALD H
US21 patents
⚠️ This page may combine multiple inventors who share the name “CHAMPION DONALD H”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TEXACO CHEMICAL
16 patentsUS5298618AMar 29, 1994
Macrocyclic oxamides
TEXACO CHEMICAL50 citations92
US5189233AFeb 23, 1993
Process for the production of cyclohexane by liquid phase hydrogenation of benzene
TEXACO CHEMICAL38 citations92
US5140090AAug 18, 1992
Aliphatic polyureas from polyoxyalkylene polyamines, aliphatic diisocyanates and sym-dialkylethylenediamines
TEXACO CHEMICAL22 citations92
US5093382AMar 3, 1992
Preparation of foams using polyfunctional organic acids
TEXACO CHEMICAL23 citations92
US5053484AOct 1, 1991
Polyether amide from mixture of polyether diamine
TEXACO CHEMICAL45 citations92
US5179175AJan 12, 1993
Polyamides from polyetheramines, hexamethylene diamine and adipic acid
TEXACO CHEMICAL19 citations82
US5247078ASep 21, 1993
Synthesis of diaza crown ethers
TEXACO CHEMICAL11 citations74
US5206362AApr 27, 1993
Two-step method for preparing cyclic ureas
TEXACO CHEMICAL7 citations74
US5171819ADec 15, 1992
Alkyl substituted piperazines as chain extenders in polyurea elastomer systems
TEXACO CHEMICAL8 citations74
US5140097AAug 18, 1992
Thermoplastic thermosettable polyamide from poly(oxytetramethylene) diamine and poly(oxytetramethylene) oligomer polyamine
TEXACO CHEMICAL16 citations74
US5110991AMay 5, 1992
Heterogeneous catalyst for alkoxylation of alcohols
TEXACO CHEMICAL14 citations74
US5082917AJan 21, 1992
Piperazine derivatives as chain extenders in polyurea elastomer systems and method making same
TEXACO CHEMICAL9 citations74
US5159101AOct 27, 1992
Cyanoethylation of alcohols
TEXACO CHEMICAL4 citations63
US5019653AMay 28, 1991
Purification of polyamines derived from polyhydroxyl compounds
TEXACO CHEMICAL6 citations63
US4892959AJan 9, 1990
Method for the production of N-methylpyrrolidine
TEXACO CHEMICAL3 citations63
US5103056AApr 7, 1992
Amidoamines derived from amines with aminopropyl and secondary amine termini
TEXACO CHEMICAL1 citations52
HUNTSMAN PETROCHEMICAL LLC
4 patentsUS8008239B2Aug 30, 2011
Acylalkylisethionate esters and applications in consumer products
HUNTSMAN PETROCHEMICAL LLC14 citations91
US10472318B2Nov 12, 2019
Etheramine compounds
HUNTSMAN PETROCHEMICAL LLC0 citations52
US10239820B2Mar 26, 2019
Etheramine compounds
HUNTSMAN PETROCHEMICAL LLC0 citations52
US12077730B2Sep 3, 2024
Quaternary ammonium hydroxides of polyamines
HUNTSMAN PETROCHEMICAL LLC0 citations45