Assignee
UNION OIL CO
1,118 granted patents·31,786 citations·filing 1961–2006
Top patents by PatentIndex Score
1,118 records- 0199US4016239ARecarbonation of spent oil shaleUNION OIL CO·Filed 1975·Granted Apr 5, 1977·289 cites·10 claims
- 0298US5288393AGasoline fuelUNION OIL CO·Filed 1990·Granted Feb 22, 1994·110 cites·155 claims
- 0398US4572778AHydroprocessing with a large pore catalystUNION OIL CO·Filed 1984·Granted Feb 25, 1986·127 cites·41 claims
- 0498US4521499AHighly conductive photoelectrochemical electrodes and uses thereofUNION OIL CO·Filed 1983·Granted Jun 4, 1985·134 cites·63 claims
- 0598US4460707AHydroprocessing catalyst and method for preparing itUNION OIL CO·Filed 1982·Granted Jul 17, 1984·112 cites·47 claims
- 0698US4419271AHydrocarbon conversion catalystUNION OIL CO·Filed 1979·Granted Dec 6, 1983·109 cites·37 claims
- 0797US5723423ASolvent soaps and methods employing sameUNION OIL CO·Filed 1996·Granted Mar 3, 1998·195 cites·38 claims
- 0897US5300217AHydroprocess utilizing a delta alumina-supported nickel and molybdenum catalystUNION OIL CO·Filed 1993·Granted Apr 5, 1994·124 cites·21 claims
- 0997US5275720AGasoline hydrocracking catalyst and processUNION OIL CO·Filed 1990·Granted Jan 4, 1994·83 cites·46 claims
- 1097US5246073AHigh temperature stable gelsUNION OIL CO·Filed 1992·Granted Sep 21, 1993·166 cites·60 claims
- 1197US5181571AWell casing flotation device and methodUNION OIL CO·Filed 1992·Granted Jan 26, 1993·428 cites·24 claims
- 1297US5126037AGeopreater heating method and apparatusUNION OIL CO·Filed 1990·Granted Jun 30, 1992·409 cites·15 claims
- 1397US4592807AMethods of making highly conductive photoelectrochemical electrodesUNION OIL CO·Filed 1985·Granted Jun 3, 1986·116 cites·51 claims
- 1497US4476930AInhibition of scale deposition from steam generation fluidsUNION OIL CO·Filed 1982·Granted Oct 16, 1984·114 cites·32 claims
- 1597US4476113AStabilized fumigant composition comprising an aqueous solution of ammonia, hydrogen sulfide, carbon disulfide and sulfurUNION OIL CO·Filed 1981·Granted Oct 9, 1984·75 cites·31 claims
- 1697US4185040AAlkylation of aromatic hydrocarbonsUNION OIL CO·Filed 1977·Granted Jan 22, 1980·131 cites·16 claims
- 1797US4009755ASelectively controlling the flow of fluids through subterranean formationsUNION OIL CO·Filed 1976·Granted Mar 1, 1977·122 cites·34 claims
- 1896US4812146ALiquid fuels of high octane valuesUNION OIL CO·Filed 1988·Granted Mar 14, 1989·74 cites·83 claims
- 1996US4674572ACorrosion and erosion-resistant wellhousingUNION OIL CO·Filed 1986·Granted Jun 23, 1987·165 cites·56 claims
- 2096US4459426ALiquid-phase alkylation and transalkylation processUNION OIL CO·Filed 1982·Granted Jul 10, 1984·119 cites·39 claims
- 2196US4311683AProcess for removal of hydrogen sulfide from gas streamsUNION OIL CO·Filed 1980·Granted Jan 19, 1982·90 cites·43 claims
- 2296US4192753AWell completion and workover fluid having low fluid lossUNION OIL CO·Filed 1978·Granted Mar 11, 1980·99 cites·28 claims
- 2396US4069869APlugging high permeability zones of reservoirs having heterogeneous permeabilityUNION OIL CO·Filed 1977·Granted Jan 24, 1978·90 cites·30 claims
- 2496US3988263AThermally stable coprecipitated catalysts useful for methanation and other reactionsUNION OIL CO·Filed 1975·Granted Oct 26, 1976·73 cites·10 claims
- 2595US5203834AFoamed gels having selective permeabilityUNION OIL CO·Filed 1992·Granted Apr 20, 1993·130 cites·25 claims
- 2695US4931061APlant seed compositionsUNION OIL CO·Filed 1989·Granted Jun 5, 1990·66 cites·12 claims
- 2795US4818743ADesulfurization catalyst and the catalyst prepared by a methodUNION OIL CO·Filed 1987·Granted Apr 4, 1989·98 cites·47 claims
- 2895US4737296AFoaming acid-containing fluidsUNION OIL CO·Filed 1986·Granted Apr 12, 1988·100 cites·41 claims
- 2995US4673522AMethods for removing obstructions from conduits with urea-sulfuric acid compositionsUNION OIL CO·Filed 1984·Granted Jun 16, 1987·63 cites·31 claims
- 3095US4445925AMethods of producing concentrated urea-sulfuric acid reaction productsUNION OIL CO·Filed 1981·Granted May 1, 1984·73 cites·52 claims
- 3195US4402852ANoncorrosive urea-sulfuric acid compositionsUNION OIL CO·Filed 1981·Granted Sep 6, 1983·60 cites·6 claims
- 3295US4261421AMethod for selectively acidizing the less permeable zones of a high temperature subterranean formationUNION OIL CO·Filed 1980·Granted Apr 14, 1981·119 cites·15 claims
- 3395US4214888AFoliar fertilization method and compositionUNION OIL CO·Filed 1978·Granted Jul 29, 1980·59 cites·12 claims
- 3495US4032460AInhibition of scale deposition in high temperature wellsUNION OIL CO·Filed 1975·Granted Jun 28, 1977·93 cites·10 claims
- 3595US4031958APlugging of water-producing zones in a subterranean formationUNION OIL CO·Filed 1975·Granted Jun 28, 1977·118 cites·25 claims
- 3695US3998272AMethod of acidizing wellsUNION OIL CO·Filed 1975·Granted Dec 21, 1976·117 cites·18 claims
- 3794US5389595AHydroprocessing catalyst, its use, and method of preparationUNION OIL CO·Filed 1993·Granted Feb 14, 1995·76 cites·61 claims
- 3894US5355967AUnderbalance jet pump drilling methodUNION OIL CO·Filed 1992·Granted Oct 18, 1994·240 cites·22 claims
- 3994US5161615AMethod for reducing water production from wellsUNION OIL CO·Filed 1991·Granted Nov 10, 1992·101 cites·40 claims
- 4094US4986361AWell casing flotation device and methodUNION OIL CO·Filed 1989·Granted Jan 22, 1991·140 cites·33 claims
- 4194US4876408AAlkylation process using a catalyst having an increased selectivity for monoalkylationUNION OIL CO·Filed 1988·Granted Oct 24, 1989·50 cites·26 claims
- 4294US4721606ARecovery of metal values from spent catalystsUNION OIL CO·Filed 1984·Granted Jan 26, 1988·78 cites·29 claims
- 4394US4664717AMethods for hydrolyzing polysaccharides and compositions useful thereinUNION OIL CO·Filed 1984·Granted May 12, 1987·40 cites·35 claims
- 4494US4522644AMethod for selectively controlling plant suckersUNION OIL CO·Filed 1982·Granted Jun 11, 1985·44 cites·14 claims
- 4594US4413680APermeability reduction in subterranean reservoirsUNION OIL CO·Filed 1981·Granted Nov 8, 1983·90 cites·25 claims
- 4694US4191664AThermally stable nickel-alumina catalysts useful for methanation and other reactionsUNION OIL CO·Filed 1978·Granted Mar 4, 1980·67 cites·8 claims
- 4794US4169111AManufacture of ethylbenzeneUNION OIL CO·Filed 1978·Granted Sep 25, 1979·122 cites·12 claims
- 4894US4097365AHydrocracking process and catalyst for production of middle distillate oilsUNION OIL CO·Filed 1977·Granted Jun 27, 1978·50 cites·8 claims
- 4994US4076911AEthylene-carbon monoxide copolymersUNION OIL CO·Filed 1975·Granted Feb 28, 1978·61 cites·11 claims
- 5094US3979305ALow fluid loss additive compositionUNION OIL CO·Filed 1974·Granted Sep 7, 1976·49 cites·18 claims
Showing the top 50 of 1,118 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when UNION OIL CO files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →