Inventor · disambiguated record
Jack C. Cowan
Also filed as: COWAN JACK · COWAN JACK C
29 granted patents·3 pending applications·1,328 citations·filing 1981–2004
98Inventor score
Files withVENTURE CHEMICALS INC16VENTURE INNOVATIONS INC8ACTISYSTEMS INC2COWAN JACK C2MASI TECHNOLOGIES INC2
Top patents by PatentIndex Score
32 records- 0195US5207830ALightweight particulate cementitious materials and process for producing sameVENTURE INNOVATIONS INC·Filed 1991·Granted May 4, 1993·204 cites·21 claims
- 0293US6562762B2Method of and composition for reducing the loss of fluid during well drilling, completion or workover operationsVENTURE CHEMICALS INC·Filed 2001·Granted May 13, 2003·53 cites·20 claims
- 0393US4863980AOrganophilic modified polymersVENTURE CHEMICALS INC·Filed 1988·Granted Sep 5, 1989·52 cites·5 claims
- 0492US6156708AAphron-containing oil base fluids and method of drilling a well therewithACTISYSTEMS INC·Filed 1999·Granted Dec 5, 2000·107 cites·14 claims
- 0592US6148917AMethod of releasing stuck pipe or tools and spotting fluids thereforACTISYSTEMS INC·Filed 1999·Granted Nov 21, 2000·154 cites·9 claims
- 0692US4960740AOrganophilic clay compositionsVENTURE INNOVATIONS INC·Filed 1989·Granted Oct 2, 1990·38 cites·9 claims
- 0791US5004553AWell working compositions, method of decreasing the seepage loss from such compositions, and additive thereforVENTURE INNOVATIONS INC·Filed 1989·Granted Apr 2, 1991·87 cites·11 claims
- 0887US4956104AOrganophilic polymersVENTURE CHEMICALS INC·Filed 1989·Granted Sep 11, 1990·41 cites·6 claims
- 0986US6258755B1Chitosan-containing well drilling and servicing fluidsVENTURE INNOVATIONS INC·Filed 1998·Granted Jul 10, 2001·48 cites·25 claims
- 1086US4531594AMethod and compositions for fluid loss and seepage loss controlVENTURE CHEMICALS INC·Filed 1982·Granted Jul 30, 1985·47 cites·11 claims
- 1186US4428843AWell working compositions, method of decreasing the seepage loss from such compositions, and additive thereforVENTURE CHEMICALS INC·Filed 1981·Granted Jan 31, 1984·52 cites·13 claims
- 1286US4356096AMethod of enhancing the effect of liquid organic lubricants in drilling fluidsVENTURE CHEMICALS INC·Filed 1981·Granted Oct 26, 1982·54 cites·7 claims
- 1385US4505750AFoundry mold and core sandsVENTURE CHEMICALS INC·Filed 1983·Granted Mar 19, 1985·25 cites·22 claims
- 1483US5076944ASeepage loss reducing additive for well working compositions and uses thereofVENTURE INNOVATIONS INC·Filed 1991·Granted Dec 31, 1991·62 cites·10 claims
- 1581US4345039AMethod of recovering polyester fibers and cellulosic powder from polyester/cotton textile wasteVENTURE CHEMICALS INC·Filed 1981·Granted Aug 17, 1982·32 cites·10 claims
- 1680US6780822B2Anhydride-modified chitosan, method of preparation thereof, and fluids containing sameVENTURE CHEMICALS INC·Filed 2003·Granted Aug 24, 2004·27 cites·15 claims
- 1780US5147852AReduction of seepage losses in well working compositionsVENTURE INNOVATIONS INC·Filed 1991·Granted Sep 15, 1992·42 cites·16 claims
- 1878US4843048AOrganophilic clay compositionsVENTURE INNOVATIONS INC·Filed 1987·Granted Jun 27, 1989·19 cites·7 claims
- 1975US5071575AWell working compositions, method of decreasing the seepage loss from such compositions, and additive thereforVENTURE INNOVATIONS INC·Filed 1990·Granted Dec 10, 1991·40 cites·10 claims
- 2074US4421655AOrganophilic polyphenolic acid additives for well-working compositionsVENTURE CHEMICALS INC·Filed 1981·Granted Dec 20, 1983·30 cites·14 claims
- 2170US4853465AOrganophilic polyphenolic acid adductsVENTURE CHEMICALS INC·Filed 1987·Granted Aug 1, 1989·11 cites·8 claims
- 2269US6739414B2Compositions and methods for sealing formationsMASI TECHNOLOGIES LLC·Filed 2002·Granted May 25, 2004·31 cites·70 claims
- 2369US4737295AOrganophilic polyphenolic acid adductsVENTURE CHEMICALS INC·Filed 1986·Granted Apr 12, 1988·18 cites·11 claims
- 2468US7199085B2Colloidal and colloidal-like systems in aqueous, clay-based fluidsMASI TECHNOLOGIES INC·Filed 2004·Granted Apr 3, 2007·14 cites·43 claims
- 2563US5045593AOrganophilic modified polymersVENTURE CHEMICALS INC·Filed 1990·Granted Sep 3, 1991·15 cites·14 claims
- 2649US4404107AWell working compositions, method of decreasing the seepage loss from such compositions, and additive thereforVENTURE CHEMICALS INC·Filed 1981·Granted Sep 13, 1983·17 cites·8 claims
- 2748US7544785B2Process for the treatment for chitinaceous materials and for the deacetylation of chitinVENTURE CHEMICALS INC·Filed 2004·Granted Jun 9, 2009·1 cites·13 claims
- 2842US2006252652A1Oil base fluids containing hydrophilic tanninsCOWAN JACK C·Filed 2004·Application pending·0 cites
- 2939US7033977B2Compositions and methods for sealing formationsMASI TECHNOLOGIES INC·Filed 2004·Granted Apr 25, 2006·4 cites·18 claims
- 3038US2008171670A1Oil Base Fluids and Organophilic Tannin-Containing Compositions to Lower the Fluid Loss ThereofCOWAN JACK C·Filed 2004·Application pending·0 cites
- 3136US2003141062A1Method for decreasing lost circulation during well operations using water absorbent polymersFiled 2003·Application pending·0 cites
- 3235US4599181AHumic substances with enhanced surface chargeVENTURE CHEMICALS INC·Filed 1985·Granted Jul 8, 1986·3 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →