Inventor
COWAN JACK C
US26 patents
⚠️ This page may combine multiple inventors who share the name “COWAN JACK C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VENTURE CHEMICALS INC
16 patentsUS4956104ASep 11, 1990
Organophilic polymers
VENTURE CHEMICALS INC41 citations96
US4863980ASep 5, 1989
Organophilic modified polymers
VENTURE CHEMICALS INC52 citations96
US6562762B2May 13, 2003
Method of and composition for reducing the loss of fluid during well drilling, completion or workover operations
VENTURE CHEMICALS INC53 citations94
US4428843AJan 31, 1984
Well working compositions, method of decreasing the seepage loss from such compositions, and additive therefor
VENTURE CHEMICALS INC52 citations93
US4531594AJul 30, 1985
Method and compositions for fluid loss and seepage loss control
VENTURE CHEMICALS INC47 citations92
US4421655ADec 20, 1983
Organophilic polyphenolic acid additives for well-working compositions
VENTURE CHEMICALS INC30 citations92
US4345039AAug 17, 1982
Method of recovering polyester fibers and cellulosic powder from polyester/cotton textile waste
VENTURE CHEMICALS INC32 citations91
US4356096AOct 26, 1982
Method of enhancing the effect of liquid organic lubricants in drilling fluids
VENTURE CHEMICALS INC54 citations90
US6780822B2Aug 24, 2004
Anhydride-modified chitosan, method of preparation thereof, and fluids containing same
VENTURE CHEMICALS INC27 citations89
US4853465AAug 1, 1989
Organophilic polyphenolic acid adducts
VENTURE CHEMICALS INC11 citations82
US4737295AApr 12, 1988
Organophilic polyphenolic acid adducts
VENTURE CHEMICALS INC18 citations82
US4505750AMar 19, 1985
Foundry mold and core sands
VENTURE CHEMICALS INC25 citations82
US5045593ASep 3, 1991
Organophilic modified polymers
VENTURE CHEMICALS INC15 citations73
US4404107ASep 13, 1983
Well working compositions, method of decreasing the seepage loss from such compositions, and additive therefor
VENTURE CHEMICALS INC17 citations71
US4599181AJul 8, 1986
Humic substances with enhanced surface charge
VENTURE CHEMICALS INC3 citations63
US7544785B2Jun 9, 2009
Process for the treatment for chitinaceous materials and for the deacetylation of chitin
VENTURE CHEMICALS INC1 citations40
VENTURE INNOVATIONS INC
8 patentsUS5207830AMay 4, 1993
Lightweight particulate cementitious materials and process for producing same
VENTURE INNOVATIONS INC204 citations98
US4960740AOct 2, 1990
Organophilic clay compositions
VENTURE INNOVATIONS INC38 citations96
US5076944ADec 31, 1991
Seepage loss reducing additive for well working compositions and uses thereof
VENTURE INNOVATIONS INC62 citations95
US5004553AApr 2, 1991
Well working compositions, method of decreasing the seepage loss from such compositions, and additive therefor
VENTURE INNOVATIONS INC87 citations93
US6258755B1Jul 10, 2001
Chitosan-containing well drilling and servicing fluids
VENTURE INNOVATIONS INC48 citations92
US5147852ASep 15, 1992
Reduction of seepage losses in well working compositions
VENTURE INNOVATIONS INC42 citations92
US5071575ADec 10, 1991
Well working compositions, method of decreasing the seepage loss from such compositions, and additive therefor
VENTURE INNOVATIONS INC40 citations92
US4843048AJun 27, 1989
Organophilic clay compositions
VENTURE INNOVATIONS INC19 citations82