Assignee
US INTERIOR
484 granted patents·10,429 citations·filing 1967–2008
Top patents by PatentIndex Score
484 records- 0198US4039440AReverse osmosis membraneUS INTERIOR·Filed 1975·Granted Aug 2, 1977·142 cites·5 claims
- 0297US4055051AUnitary drill bit and roof boltUS INTERIOR·Filed 1976·Granted Oct 25, 1977·107 cites·19 claims
- 0397US4005012ASemipermeable membranes and the method for the preparation thereofUS INTERIOR·Filed 1975·Granted Jan 25, 1977·114 cites·7 claims
- 0496US4315753AElectrochemical apparatus for simultaneously monitoring two gasesUS INTERIOR·Filed 1980·Granted Feb 16, 1982·127 cites·43 claims
- 0595US4437994AExtraction of metal ions from aqueous solutionUS INTERIOR·Filed 1980·Granted Mar 20, 1984·49 cites·10 claims
- 0695US4072015ABorehole aerostatic ground support systemUS INTERIOR·Filed 1976·Granted Feb 7, 1978·47 cites·5 claims
- 0795US3967455AControlled yielding rock boltUS INTERIOR·Filed 1975·Granted Jul 6, 1976·48 cites·8 claims
- 0894US4256706ALeaching agglomerated gold - silver oresUS INTERIOR·Filed 1980·Granted Mar 17, 1981·86 cites·7 claims
- 0994US4096944ACartridge for grouting an anchor element in a hole of a support structureUS INTERIOR·Filed 1977·Granted Jun 27, 1978·47 cites·6 claims
- 1093US7806275B2Chlorine resistant polyamides and membranes made from the sameUS INTERIOR·Filed 2007·Granted Oct 5, 2010·24 cites·20 claims
- 1193US4024949ATraverse bendable endless belt conveyorUS INTERIOR·Filed 1975·Granted May 24, 1977·57 cites·7 claims
- 1292US4256705ALeaching agglomerated gold - silver oresUS INTERIOR·Filed 1980·Granted Mar 17, 1981·55 cites·7 claims
- 1392US4180177APressure vent for explosion-proof electrical enclosuresUS INTERIOR·Filed 1979·Granted Dec 25, 1979·95 cites·7 claims
- 1491US4377209AThermally activated metal hydride sensor/actuatorUS INTERIOR·Filed 1981·Granted Mar 22, 1983·56 cites·4 claims
- 1591US4251109ADust controlling method using a coal cutter bitUS INTERIOR·Filed 1979·Granted Feb 17, 1981·48 cites·6 claims
- 1691US4222611AIn-situ leach mining method using branched single well for input and outputUS INTERIOR·Filed 1979·Granted Sep 16, 1980·86 cites·2 claims
- 1791US4203640AElectrical cable coupler with rotatable protective coversUS INTERIOR·Filed 1979·Granted May 20, 1980·67 cites·16 claims
- 1891US4141225AArticulated, flexible shaft assembly with axially lockable universal jointUS INTERIOR·Filed 1977·Granted Feb 27, 1979·54 cites·13 claims
- 1991US4102816AAdsorbent for polynuclear aromatic compoundsUS INTERIOR·Filed 1976·Granted Jul 25, 1978·18 cites·4 claims
- 2090US5003144AMicrowave assisted hard rock cuttingUS INTERIOR·Filed 1990·Granted Mar 26, 1991·97 cites·1 claims
- 2190US4445931AProduction of metal powderUS INTERIOR·Filed 1982·Granted May 1, 1984·49 cites·9 claims
- 2290US4144185AMethod and composition for removing calcium sulfate scale deposits from surfacesUS INTERIOR·Filed 1978·Granted Mar 13, 1979·52 cites·2 claims
- 2390US3933635AMethod for removing soluble selenium from acidic waste waterUS INTERIOR·Filed 1975·Granted Jan 20, 1976·57 cites·4 claims
- 2489US5424195AMethod for in situ biological conversion of coal to methaneUS INTERIOR·Filed 1994·Granted Jun 13, 1995·91 cites·19 claims
- 2589US3961524AMethod and apparatus for determining rock stress in situUS INTERIOR·Filed 1975·Granted Jun 8, 1976·65 cites·14 claims
- 2688US5648201AEfficient chemistry for selective modification and metallization of substratesUS INTERIOR·Filed 1992·Granted Jul 15, 1997·61 cites·7 claims
- 2788US5078219AConcave drag bit cutter device and methodUS INTERIOR·Filed 1990·Granted Jan 7, 1992·71 cites·8 claims
- 2888US4438473APower supply for an intrinsically safe circuitUS INTERIOR·Filed 1981·Granted Mar 20, 1984·74 cites·4 claims
- 2988US4172255AHF coastal current mapping radar systemUS INTERIOR·Filed 1977·Granted Oct 23, 1979·50 cites·5 claims
- 3088US4098956ASpectrally selective solar absorbersUS INTERIOR·Filed 1976·Granted Jul 4, 1978·118 cites·7 claims
- 3188US3935006AProcess for eluting adsorbed gold and/or silver values from activated carbonUS INTERIOR·Filed 1975·Granted Jan 27, 1976·33 cites·11 claims
- 3287US6021664AAutomated groundwater monitoring system and methodUS INTERIOR·Filed 1998·Granted Feb 8, 2000·137 cites·46 claims
- 3387US4695378AAcid mine water aeration and treatment systemUS INTERIOR·Filed 1984·Granted Sep 22, 1987·80 cites·5 claims
- 3487US4239735ARemoval of impurites from clayUS INTERIOR·Filed 1979·Granted Dec 16, 1980·34 cites·18 claims
- 3587US4049580AMethod for producing supported Raney nickel catalystUS INTERIOR·Filed 1976·Granted Sep 20, 1977·48 cites·12 claims
- 3686US4192738AProcess for scavenging iron from tailings produced by flotation beneficiation and for increasing iron ore recoveryUS INTERIOR·Filed 1978·Granted Mar 11, 1980·50 cites·15 claims
- 3786US4100068ASystem for the dielectrophoretic separation of particulate and granular materialUS INTERIOR·Filed 1977·Granted Jul 11, 1978·50 cites·11 claims
- 3886US3933608AMethod for the decomposition of hydrogen sulfideUS INTERIOR·Filed 1974·Granted Jan 20, 1976·37 cites·8 claims
- 3985US6541106B1Hydrophilic polyurethane impregnated rubber for sealing water leaksUS INTERIOR·Filed 2000·Granted Apr 1, 2003·30 cites·17 claims
- 4085US5039312AGas separation with rotating plasma arc reactorUS INTERIOR·Filed 1990·Granted Aug 13, 1991·75 cites·10 claims
- 4185US4442072ASelective recovery of base metals and precious metals from oresUS INTERIOR·Filed 1982·Granted Apr 10, 1984·36 cites·3 claims
- 4285US4242192AElectrolytic stripping cellUS INTERIOR·Filed 1979·Granted Dec 30, 1980·33 cites·12 claims
- 4385US4208294ADilution stable water based magnetic fluidsUS INTERIOR·Filed 1979·Granted Jun 17, 1980·38 cites·13 claims
- 4485US4159231AMethod of producing a lead dioxide coated cathodeUS INTERIOR·Filed 1978·Granted Jun 26, 1979·33 cites·4 claims
- 4585US4142417AMultichannel infrared pyrometerUS INTERIOR·Filed 1978·Granted Mar 6, 1979·54 cites·6 claims
- 4685US4080419AFoam injection leaching process for fragmented oreUS INTERIOR·Filed 1976·Granted Mar 21, 1978·26 cites·7 claims
- 4785US4074778ASquare hole drillUS INTERIOR·Filed 1976·Granted Feb 21, 1978·47 cites·9 claims
- 4885US4032440ASemipermeable membraneUS INTERIOR·Filed 1975·Granted Jun 28, 1977·40 cites·14 claims
- 4985US4002975AElectro-optic measurement of voltage on high-voltage power linesUS INTERIOR·Filed 1976·Granted Jan 11, 1977·48 cites·10 claims
- 5084US7294275B1Method of removing phosphorus from wastewaterUS INTERIOR·Filed 2005·Granted Nov 13, 2007·18 cites·13 claims
Showing the top 50 of 484 patent records by PatentIndex Score.
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