Inventor · disambiguated record
Donald D. Norwood
Also filed as: NORWOOD DONALD D
16 granted patents·1,393 citations·filing 1975–1992
96Inventor score
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16 records- 0198US4806513ASilicon and fluorine-treated alumina containing a chromium catalyst and method of producing samePHILLIPS PETROLEUM CO·Filed 1984·Granted Feb 21, 1989·136 cites·31 claims
- 0298US4053436ASpray dried titanium-containing catalyst for stress crack resistant polymerPHILLIPS PETROLEUM CO·Filed 1975·Granted Oct 11, 1977·120 cites·7 claims
- 0396US5037911APolymerization with surface silicated and fluorided alumina supported chromiumPHILLIPS PETROLEUM CO·Filed 1988·Granted Aug 6, 1991·97 cites·7 claims
- 0495US5401820AOlefin polymers prepared by polymerization with treated alumina supported chromiumPHILLIPS PETROLEUM CO·Filed 1992·Granted Mar 28, 1995·86 cites·18 claims
- 0595US5063600AHybrid information management system for handwriting and textNORWOOD DONALD D·Filed 1990·Granted Nov 5, 1991·286 cites·22 claims
- 0694US4735931AIn situ comonomer generation in olefin polymerizationPHILLIPS PETROLEUM CO·Filed 1986·Granted Apr 5, 1988·86 cites·10 claims
- 0793USRE34476EHybrid information management system for handwriting and textNORWOOD DONALD D·Filed 1992·Granted Dec 14, 1993·244 cites·22 claims
- 0893US4596862AOlefin polymerization using chromium on fluorided aluminophosphatePHILLIPS PETROLEUM CO·Filed 1984·Granted Jun 24, 1986·70 cites·5 claims
- 0992US4312967APolymerization catalyst and processPHILLIPS PETROLEUM CO·Filed 1980·Granted Jan 26, 1982·81 cites·33 claims
- 1091US4820785AIn situ comonomer generation in olefin polymerizationPHILLIPS PETROLEUM CO·Filed 1988·Granted Apr 11, 1989·60 cites·16 claims
- 1186US4281520APortable cooler for bottled beveragesNORWOOD DONALD D·Filed 1980·Granted Aug 4, 1981·63 cites·6 claims
- 1276US4297445AContinuous production of olefin block copolymersPHILLIPS PETROLEUM CO·Filed 1979·Granted Oct 27, 1981·18 cites·6 claims
- 1360US4101722APolymerization process using spray dried titanium-containing catalystPHILLIPS PETROLEUM CO·Filed 1977·Granted Jul 18, 1978·11 cites·10 claims
- 1459US4767028ARotary valvePHILLIPS PETROLEUM CO·Filed 1988·Granted Aug 30, 1988·19 cites·11 claims
- 1549US4773565ARotary valvePHILLIPS PETROLEUM CO·Filed 1985·Granted Sep 27, 1988·14 cites·6 claims
- 1630US4773626ARotary valvePHILLIPS PETROLEUM CO·Filed 1983·Granted Sep 27, 1988·2 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →