1
Stacey I Zones, D I Holtermann, R A Innes, T A Pecoraro, D S Santilli, J N Ziemer: Zeolite SSZ-25. Chevron Research Company, S R La Paglia, T G DeJonghe, V J Cavalieri, May 2, 1989: US04826667 (210 worldwide citation)

A crystalline zeolite SSZ-25 is prepared using an adamantane quaternary ammonium ion as a template.


2
Jaime Lopez, Eugene A Pasek: Process for preparing heavy oil hydroprocessing slurry catalyst. Chevron Research Company, S R LaPaglia, T G DeJonghe, O T Dickinson, December 1, 1987: US04710486 (68 worldwide citation)

A process for the preparation of a dispersed Group VIB metal sulfide hydrocarbon oil hydroprocessing catalyst comprising reacting aqueous ammonia and a Group VIB metal compound, such as molybdenum oxide or tungsten oxide, to form a water soluble oxygen-containing compound such as aqueous ammonium mo ...


3
Jaime Lopez, Eugene A Pasek: Heavy oil hydroprocessing with Group VI metal slurry catalyst. Chevron Research Company, Q T Dickinson, T G DeJonghe, August 15, 1989: US04857496 (42 worldwide citation)

A process for the preparation of a dispersed Group VIB metal sulfide hydrocarbon oil hydroprocessing catalyst comprising reacting aqueous ammonia and a Group VIB metal compound, such as molybdenum oxide or tungsten oxide, to form water soluble compounds such as aqueous ammonium molybdates or tungsta ...


4
Jonas P Harrison: Vanadium-phosphorus oxide oxidation of N-butane to maleic anhydride. Chevron Research Company, G F Magdeburger, John Stoner Jr, T G DeJonghe, October 12, 1976: US03985775 (42 worldwide citation)

A high-activity vanadium-phosphorus mixed-oxide catalyst is prepared by a method requiring heating the catalyst precursor at about 350.degree.-410.degree.C. to drive off at least a portion of the water of hydration, and then at a higher temperature. The catalyst is especially useful for oxidation of ...


5
Robert L Hudson: Polypropylene blend compositions. Chevron Research, J A Buchanan Jr, T G DeJonghe, L S Squires, October 20, 1981: US04296022 (33 worldwide citation)

A blend of different polypropylene resins which is particularly useful in melt-spinning fine denier yarns. The blend can be melt-extruded into pellets having better spinning properties for melt-spinning fine denier yarns than the individual resins.


6
C Richard Hsieh, Roger K Clifford: Solvent extraction process for recovering bitumen from tar sand. Chevron Research Company, S R LaPaglia, T G DeJonghe, Q Todd Dickinson, June 30, 1987: US04676889 (33 worldwide citation)

Bitumen recovered from tar sand by direct solvent extraction followed by washing of the sand tailings with countercurrent solvent flow and a solvent/aqueous phase separation step to recover solvent and residual bitumen.


7
Malcolm Scott Singer: N-alkyl or alkoxy-N-substituted hydrocarbyl urea. Chevron Research Company, J A Buchanan Jr, T G DeJonghe, Raymond Owyang, September 5, 1978: US04111683 (31 worldwide citation)

Compounds of the formula ##STR1## wherein R is aliphatic hydrocarbyl, alicyclic hydrocarbyl or aryl suitably substituted, if desired, or a heterocyclic group, R.sup.1 is hydrogen or alkyl, R.sup.2 is alkyl or alkoxy, R.sup.3 is ##STR2## wherein a is 0 or 1, R.sup.4 is hydrogen or CW'.sub.3, the W' b ...


8
Stephen J Miller: Dehydrogenation of isobutane over a zeolitic catalyst. Chevron Research Company, S R La Paglia, T G DeJonghe, P L McGarrigle Jr, February 23, 1988: US04727216 (31 worldwide citation)

Isobutene is produced by contacting isobutane with a sulfided, type L zeolitic catalyst containing platinum, tin, barium, and an inorganic binder. The isobutane is contacted with the catalyst in the presence of a sulfur-containing gas at a temperature of from 850.degree. F. to 1250.degree. F., a pre ...


9
Robert L Batchelor, Gene E Kellum: Production of blow molding polyethylene resin. Chevron Chemical Company, C D Holland, T G DeJonghe, December 5, 1995: US05473027 (28 worldwide citation)

Disclosed is a process for making polyethylene resin by reacting ethylene or ethylene and a C.sub.3 -C.sub.8 alpha-olefin in the presence of a CrO.sub.3 /TiO.sub.2 catalyst on a silica support in a gas-phase polymerization reactor and in the presence of a catalyst productivity reduction agent such a ...


10
David C K Chan: Herbicidal N-(N-hydrocarbyloxycarbamylalkyl)-2,6-dialkyl-alpha-haloacetanilides. Chevron Research Company, S R LaPaglia, T G DeJonghe, L S Squires, January 22, 1985: US04494978 (27 worldwide citation)

N-(N'-hydrocarbyloxycarbamylalkyl)-2,6-dialkyl-alpha-haloacetanilides have herbicidal activity, particularly in preemergent applications.



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