Inventor · disambiguated record
Darrell W. Walker
Also filed as: FARHA FLOYD E JR · FARHA FLOYD JR · WALKER DARRELL W
26 granted patents·1,034 citations·filing 1975–1996
97Inventor score
Top patents by PatentIndex Score
26 records- 0199US4484015ASelective hydrogenationPHILLIPS PETROLEUM CO·Filed 1983·Granted Nov 20, 1984·122 cites·10 claims
- 0298US4404124ASelective hydrogenation catalystPHILLIPS PETROLEUM CO·Filed 1981·Granted Sep 13, 1983·127 cites·9 claims
- 0396US4176140ADehydrogenation of hydrocarbons with zinc titanate catalystPHILLIPS PETROLEUM CO·Filed 1977·Granted Nov 27, 1979·44 cites·22 claims
- 0493US5220080AChromia on metal oxide catalysts for the oxidation of methane to methanolSUN CO INC R & M·Filed 1992·Granted Jun 15, 1993·81 cites·22 claims
- 0593US4144277ADehydrogenation of hydrocarbons with zinc titanate catalystPHILLIPS PETROLEUM CO·Filed 1977·Granted Mar 13, 1979·46 cites·16 claims
- 0692US5439859AProcess and catalyst for dehydrogenation of organic compoundsSUN CO INC R & M·Filed 1992·Granted Aug 8, 1995·99 cites·30 claims
- 0792US5132472ACatalytic oxidation of alkanesSUN REFINING & MARKETING·Filed 1990·Granted Jul 21, 1992·102 cites·9 claims
- 0889US4918249ASilicometallate molecular sieves and their use as catalysts in oxidation of alkanesSUN REFINING & MARKETING·Filed 1989·Granted Apr 17, 1990·27 cites·13 claims
- 0988US5414157ACatalytic oxidation of alkanesSUN CO INC R & M·Filed 1992·Granted May 9, 1995·71 cites·9 claims
- 1086US4252680AOxidative dehydrogenation catalyst preparationPHILLIPS PETROLEUM CO·Filed 1979·Granted Feb 24, 1981·16 cites·7 claims
- 1184US4228040ALithium- or magnesium-promoted zinc titanate catalyst for dehydrogenation of hydrocarbonsPHILLIPS PETROLEUM CO·Filed 1979·Granted Oct 14, 1980·15 cites·7 claims
- 1281US5733518AProcess and catalyst for dehydrogenation of organic compoundsSUN CO INC R & M·Filed 1996·Granted Mar 31, 1998·57 cites·6 claims
- 1381US5386074ACatalytic dehydrogenation of alkanesSUN CO INC R & M·Filed 1993·Granted Jan 31, 1995·18 cites·18 claims
- 1477US5345011ANew manganese catalyst for light alkane oxidationSUN CO INC R & M·Filed 1993·Granted Sep 6, 1994·29 cites·9 claims
- 1577US4794095ACatalytic cracking catalystPHILLIPS PETROLEUM CO·Filed 1987·Granted Dec 27, 1988·30 cites·19 claims
- 1672US4218346AZinc titanate catalyst for dehydrogenation of hydrocarbonsPHILLIPS PETROLEUM CO·Filed 1979·Granted Aug 19, 1980·19 cites·6 claims
- 1771US4765884ACracking catalyst and processPHILLIPS PETROLEUM CO·Filed 1987·Granted Aug 23, 1988·25 cites·24 claims
- 1870US4873211ACracking catalyst and processPHILLIPS PETROLEUM CO·Filed 1988·Granted Oct 10, 1989·29 cites·11 claims
- 1968US4846960ACatalytic crackingPHILLIPS PETROLEUM CO·Filed 1988·Granted Jul 11, 1989·22 cites·17 claims
- 2065US4370310AZinc aluminate prepared using an alumina hydratePHILLIPS PETROLEUM CO·Filed 1981·Granted Jan 25, 1983·10 cites·6 claims
- 2165US4010114AOxidative dehydrogenation catalystPHILLIPS PETROLEUM CO·Filed 1975·Granted Mar 1, 1977·15 cites·9 claims
- 2264US4263133ACatalytic reforming and hydrocracking of organic compounds employing zinc titanate as the catalytic agentPHILLIPS PETROLEUM CO·Filed 1980·Granted Apr 21, 1981·15 cites·22 claims
- 2357US5345010AChromia on metal oxide for the oxidation of alkane to alcoholSUN CO INC R & M·Filed 1993·Granted Sep 6, 1994·10 cites·13 claims
- 2441US4218343ADehydrogenation of organic compoundsPHILLIPS PETROLEUM CO·Filed 1979·Granted Aug 19, 1980·1 cites·4 claims
- 2534US4727053APassivation of metal contaminated cracking catalystsPHILLIPS PETROLEUM CO·Filed 1986·Granted Feb 23, 1988·3 cites·22 claims
- 2631US4793914APassivation of metal contaminated cracking catalystsPHILLIPS PETROLEUM CO·Filed 1987·Granted Dec 27, 1988·1 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →