Inventor · disambiguated record
Fred T. Sherk
Also filed as: IRVIN HOWARD B · SHERK FRED T
25 granted patents·1,931 citations·filing 1974–1988
97Inventor score
Top patents by PatentIndex Score
25 records- 0198US4424341ASeparation of solid polymers and liquid diluentPHILLIPS PETROLEUM CO·Filed 1981·Granted Jan 3, 1984·203 cites·4 claims
- 0296US4139450ASolvent extraction of tar sandPHILLIPS PETROLEUM CO·Filed 1977·Granted Feb 13, 1979·84 cites·9 claims
- 0396US4121029APolyolefin reactor systemPHILLIPS PETROLEUM CO·Filed 1976·Granted Oct 17, 1978·82 cites·8 claims
- 0495US4613484ALoop reactor settling leg system for separation of solid polymers and liquid diluentPHILLIPS PETROLEUM CO·Filed 1984·Granted Sep 23, 1986·403 cites·8 claims
- 0595US4589957AMonomer and diluent recoveryPHILLIPS PETROLEUM CO·Filed 1983·Granted May 20, 1986·112 cites·9 claims
- 0694US4501885ADiluent and inert gas recovery from a polymerization processPHILLIPS PETROLEUM CO·Filed 1981·Granted Feb 26, 1985·769 cites·4 claims
- 0787US4167472AHydrocarbon treating processPHILLIPS PETROLEUM CO·Filed 1978·Granted Sep 11, 1979·23 cites·19 claims
- 0886US4235607AMethod and apparatus for the selective absorption of gasesPHILLIPS PETROLEUM CO·Filed 1979·Granted Nov 25, 1980·56 cites·13 claims
- 0982US4451643AProduction of arylene sulfide polymer beadsPHILLIPS PETROLEUM CO·Filed 1983·Granted May 29, 1984·29 cites·8 claims
- 1082US4368321AElevated, declining pressure dehydration of poly(arylene sulfide) prepolymerization mixturePHILLIPS PETROLEUM CO·Filed 1981·Granted Jan 11, 1983·40 cites·12 claims
- 1181US4730034ARecovering poly(arylene sulfide) oligomers from a poly(arylene sulfide) reaction mixturePHILLIPS PETROLEUM CO·Filed 1987·Granted Mar 8, 1988·27 cites·24 claims
- 1274US4801664AAcid wash of polyarylene sulfidesPHILLIPS PETROLEUM CO·Filed 1988·Granted Jan 31, 1989·20 cites·60 claims
- 1372US3952052AProcess for producing alkali metal salts of aromatic polycarboxylic acidsPHILLIPS PETROLEUM CO·Filed 1974·Granted Apr 20, 1976·8 cites·9 claims
- 1471US4529818AContinuous process for the production of alkali metal n-methylaminobutyratePHILLIPS PETROLEUM CO·Filed 1983·Granted Jul 16, 1985·9 cites·14 claims
- 1570US4166771AButadiene recoveryPHILLIPS PETROLEUM CO·Filed 1977·Granted Sep 4, 1979·8 cites·6 claims
- 1667US4524200AGranular poly(arylene sulfide) recovery using evaporationPHILLIPS PETROLEUM CO·Filed 1984·Granted Jun 18, 1985·17 cites·23 claims
- 1767US4510316APurification of N-methylpyrrolidoneCLEARY JAMES W·Filed 1982·Granted Apr 9, 1985·7 cites·16 claims
- 1851US4086288AAcetylenes removal from olefin streams for alkylation by dimethyl formamide absorptionPHILLIPS PETROLEUM CO·Filed 1976·Granted Apr 25, 1978·6 cites·4 claims
- 1938US4839411ASolid state curing of poly(arylene sulfide) resins in reduced oxygen atmospheresPHILLIPS PETROLEUM CO·Filed 1987·Granted Jun 13, 1989·5 cites·47 claims
- 2038US4807672AEmpty-full indicator for solids tanks and blendersPHILLIPS PETROLEUM CO·Filed 1987·Granted Feb 28, 1989·11 cites·13 claims
- 2136US4177250AMethod of removing acetylene and sulfur compounds from gases by absorption in dimethyl formamidePHILLIPS PETROLEUM CO·Filed 1977·Granted Dec 4, 1979·5 cites·8 claims
- 2235US4436901AHydrocarbon wash liquid for catalyst separationPHILLIPS PETROLEUM CO·Filed 1982·Granted Mar 13, 1984·3 cites·5 claims
- 2333US4376196AArylene sulfide polymer purificationPHILLIPS PETROLEUM CO·Filed 1980·Granted Mar 8, 1983·2 cites·6 claims
- 2432US4882418AWashing arylene sulfide polymers with water plus a reducing agentPHILLIPS PETROLEUM CO·Filed 1988·Granted Nov 21, 1989·1 cites·36 claims
- 2527US4263451ARemoving carbonaceous contaminant from zinc oxidePHILLIPS PETROLEUM CO·Filed 1979·Granted Apr 21, 1981·1 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →