Inventor · disambiguated record
Donald E. Gessell
Also filed as: GESSELL DONALD E · GESSELL DONALD EARL
20 granted patents·468 citations·filing 1975–1992
96Inventor score
Top patents by PatentIndex Score
20 records- 0193US4163831AHigh efficiency titanate catalyst for polymerizing olefinsDOW CHEMICAL CO·Filed 1976·Granted Aug 7, 1979·56 cites·9 claims
- 0292US4518706AHydrocarbon soluble catalyst supports and resultant polymerization catalystsDU PONT·Filed 1983·Granted May 21, 1985·59 cites·16 claims
- 0391US4172050AHigh efficiency titanate catalyst for polymerizing olefinsDOW CHEMICAL CO·Filed 1975·Granted Oct 23, 1979·48 cites·12 claims
- 0488US4244838AHigh efficiency catalyst for polymerizing olefinsDOW CHEMICAL CO·Filed 1979·Granted Jan 13, 1981·36 cites·30 claims
- 0587US4246383AProcess for polymerizing olefins in the presence of a catalyst prepared from an organomagnesium component which does not reduce TiCl4DOW CHEMICAL CO·Filed 1979·Granted Jan 20, 1981·34 cites·10 claims
- 0685US4496660ACatalyst prepared from organo-magnesium compound; oxygen- or nitrogen-containing compound; halide source; transition metal compound and reducing agentDOW CHEMICAL CO·Filed 1980·Granted Jan 29, 1985·38 cites·29 claims
- 0782US4426316ACatalyst prepared from organomagnesium compound, organic hydroxyl-containing compound, reducing halide source and transition metal compoundDOW CHEMICAL CO·Filed 1982·Granted Jan 17, 1984·30 cites·4 claims
- 0877US4945142AComposition and process for friction loss reductionCONOCO INC·Filed 1988·Granted Jul 31, 1990·27 cites·3 claims
- 0971US4067822AHigh efficiency complex catalyst for polymerizing olefinsDOW CHEMICAL CO·Filed 1976·Granted Jan 10, 1978·18 cites·11 claims
- 1069US4387200AProcess for polymerizing olefins employing a catalyst prepared from organomagnesium compound; oxygen- or nitrogen- containing compound; halide source; transition metal compound and reducing agentDOW CHEMICAL CO·Filed 1982·Granted Jun 7, 1983·18 cites·68 claims
- 1168US4511669AHigh efficiency catalysts for varying olefin polymer molecular weight distributionDU PONT·Filed 1983·Granted Apr 16, 1985·17 cites·30 claims
- 1267US4783512AProcess for polymerizing olefins in the presence of a catalyst prepared from organomagnesium compound, organic hydroxyl-containing compound, reducing halide source and transition metal compoundDOW CHEMICAL CO·Filed 1987·Granted Nov 8, 1988·17 cites·7 claims
- 1362US4699961AHigh efficiency catalysts for varying olefin polymer molecular weight distributionDU PONT·Filed 1986·Granted Oct 13, 1987·13 cites·7 claims
- 1461US4091082AHydrocarbon soluble catalyst containing dinitrogen or dihydrogen transition metal complexDOW CHEMICAL CO·Filed 1976·Granted May 23, 1978·13 cites·7 claims
- 1560US5276116AComposition and method for friction loss reductionCONOCO INC·Filed 1992·Granted Jan 4, 1994·16 cites·5 claims
- 1660US4952738AComposition and method for friction loss reductionCONOCO INC·Filed 1988·Granted Aug 28, 1990·14 cites·18 claims
- 1743US4341891AMethod for reducing gels in polyolefinDOW CHEMICAL CO·Filed 1980·Granted Jul 27, 1982·5 cites·5 claims
- 1841US5028574AComposition and method for friction loss reductionCONOCO INC·Filed 1990·Granted Jul 2, 1991·5 cites·10 claims
- 1940US4603183AHydrocarbon soluble catalyst supports and resultant polymerization catalystsDU PONT·Filed 1984·Granted Jul 29, 1986·4 cites·6 claims
- 2030US4167615AHydrocarbon soluble catalyst containing dinitrogen or dihydrogen transition metal complexDOW CHEMICAL CO·Filed 1978·Granted Sep 11, 1979·0 cites·2 claims
Join the waitlist — get patent alerts
Get an alert when Donald E. Gessell files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →