Assignee
COAL INDUSTRY PATENTS LTD
GB·282 granted patents·3,889 citations·filing 1972–1993
Top patents by PatentIndex Score
282 records- 0195US4406770AGas sensorCOAL INDUSTRY PATENTS LTD·Filed 1982·Granted Sep 27, 1983·108 cites·17 claims
- 0290US5283914AProtective helmetsCOAL INDUSTRY PATENTS LTD·Filed 1992·Granted Feb 8, 1994·154 cites·20 claims
- 0389US4496203ADrill pipe sectionsCOAL INDUSTRY PATENTS LTD·Filed 1982·Granted Jan 29, 1985·116 cites·12 claims
- 0489US4408886AMixing equipmentCOAL INDUSTRY PATENTS LTD·Filed 1982·Granted Oct 11, 1983·86 cites·9 claims
- 0589US4108760AExtraction of oil shales and tar sandsCOAL INDUSTRY PATENTS LTD·Filed 1975·Granted Aug 22, 1978·102 cites·17 claims
- 0686US4257814AAccelerating agents for accelerating hardening of cementCOAL INDUSTRY PATENTS LTD·Filed 1979·Granted Mar 24, 1981·43 cites·7 claims
- 0786US4194790ARock cutting tip insertsCOAL INDUSTRY PATENTS LTD·Filed 1975·Granted Mar 25, 1980·44 cites·11 claims
- 0886US4192824AAromatic hydrocarbon resinsCOAL INDUSTRY PATENTS LTD·Filed 1979·Granted Mar 11, 1980·19 cites·9 claims
- 0985US4630057AVehicle location systemCOAL INDUSTRY PATENTS LTD·Filed 1984·Granted Dec 16, 1986·40 cites·20 claims
- 1084US4486894AMethod of and apparatus for sensing the ash content of coalCOAL INDUSTRY PATENTS LTD·Filed 1982·Granted Dec 4, 1984·50 cites·5 claims
- 1184US4234063ABrake equipmentCOAL INDUSTRY PATENTS LTD·Filed 1978·Granted Nov 18, 1980·33 cites·2 claims
- 1284US3966585AManufacture of coke from a coal extractCOAL INDUSTRY PATENTS LTD·Filed 1974·Granted Jun 29, 1976·31 cites·11 claims
- 1383US5013157AApparatus for producing aerated cementitious compositionsCOAL INDUSTRY PATENTS LTD·Filed 1986·Granted May 7, 1991·37 cites·8 claims
- 1483US4907964ADevice for extracting and burning methaneCOAL INDUSTRY PATENTS LTD·Filed 1984·Granted Mar 13, 1990·45 cites·7 claims
- 1582US4284242ASpray headCOAL INDUSTRY PATENTS LTD·Filed 1979·Granted Aug 18, 1981·53 cites·6 claims
- 1682US4181360ACutting force sensorCOAL INDUSTRY PATENTS LTD·Filed 1973·Granted Jan 1, 1980·48 cites·9 claims
- 1781US4019975AHydrogenation of coalCOAL INDUSTRY PATENTS LTD·Filed 1974·Granted Apr 26, 1977·24 cites·8 claims
- 1880US4155594AMethod of and apparatus for steering a mining machineCOAL INDUSTRY PATENTS LTD·Filed 1977·Granted May 22, 1979·23 cites·13 claims
- 1980US3955132AIntrinsically safe power supply apparatusCOAL INDUSTRY PATENTS LTD·Filed 1974·Granted May 4, 1976·27 cites·7 claims
- 2079US4585466ACyclone separatorsCOAL INDUSTRY PATENTS LTD·Filed 1982·Granted Apr 29, 1986·40 cites·12 claims
- 2179US4325364ATraining breathing apparatusCOAL INDUSTRY PATENTS LTD·Filed 1978·Granted Apr 20, 1982·38 cites·7 claims
- 2278US4788853AMoisture meterCOAL INDUSTRY PATENTS LTD·Filed 1986·Granted Dec 6, 1988·40 cites·9 claims
- 2378US4697190ABorehole located directional antennae means for electromagnetic sensing systemsCOAL INDUSTRY PATENTS LTD·Filed 1985·Granted Sep 29, 1987·42 cites·12 claims
- 2478US4584948ACombustorsCOAL INDUSTRY PATENTS LTD·Filed 1984·Granted Apr 29, 1986·32 cites·56 claims
- 2576US4624574AApparatus for producing aerated cementitious compoundsCOAL INDUSTRY PATENTS LTD·Filed 1984·Granted Nov 25, 1986·24 cites·6 claims
- 2676US4485666AGas analyzerCOAL INDUSTRY PATENTS LTD·Filed 1982·Granted Dec 4, 1984·37 cites·4 claims
- 2776US4253494AConstant speed uni-directional rotary sequence valveCOAL INDUSTRY PATENTS LTD·Filed 1978·Granted Mar 3, 1981·26 cites·3 claims
- 2876US4120164AUnderground roadway or tunnel supportCOAL INDUSTRY PATENTS LTD·Filed 1977·Granted Oct 17, 1978·22 cites·10 claims
- 2975US4670071AMethod of forming a waterproof roofCOAL INDUSTRY PATENTS LTD·Filed 1984·Granted Jun 2, 1987·52 cites·7 claims
- 3075US4357167AMethods of stowing cavities with flowable materialsCOAL INDUSTRY PATENTS LTD·Filed 1980·Granted Nov 2, 1982·38 cites·27 claims
- 3174US4327816AAcoustic liner for attenuating noiseCOAL INDUSTRY PATENTS LTD·Filed 1980·Granted May 4, 1982·31 cites·6 claims
- 3274US4072349ASteering of mining machinesCOAL INDUSTRY PATENTS LTD·Filed 1976·Granted Feb 7, 1978·20 cites·18 claims
- 3373US4355895ASurvey systemsCOAL INDUSTRY PATENTS LTD·Filed 1981·Granted Oct 26, 1982·36 cites·13 claims
- 3473US4218671AMine cage position describerCOAL INDUSTRY PATENTS LTD·Filed 1978·Granted Aug 19, 1980·23 cites·13 claims
- 3573US4146576AManufacture of carbon fibresCOAL INDUSTRY PATENTS LTD·Filed 1976·Granted Mar 27, 1979·14 cites·1 claims
- 3672US4200556AReinforced rubberCOAL INDUSTRY PATENTS LTD·Filed 1978·Granted Apr 29, 1980·22 cites·7 claims
- 3771US4528107AFroth flotationCOAL INDUSTRY PATENTS LTD·Filed 1983·Granted Jul 9, 1985·23 cites·7 claims
- 3871US4460476ATreatment of organics containing waterCOAL INDUSTRY PATENTS LTD·Filed 1983·Granted Jul 17, 1984·10 cites·4 claims
- 3971US4314730AMineral mining machine with high pressure fluid nozzle and intensifierCOAL INDUSTRY PATENTS LTD·Filed 1979·Granted Feb 9, 1982·18 cites·2 claims
- 4071US4296831AAcoustic liner for attenuating noiseCOAL INDUSTRY PATENTS LTD·Filed 1980·Granted Oct 27, 1981·27 cites·10 claims
- 4171US4036731AHydrogenation of coalCOAL INDUSTRY PATENTS LTD·Filed 1975·Granted Jul 19, 1977·28 cites·7 claims
- 4270US4302054ACutter unit assemblies for excavating machines and to excavating machines including cutter unit assembliesCOAL INDUSTRY PATENTS LTD·Filed 1979·Granted Nov 24, 1981·17 cites·9 claims
- 4370US4197873AFluid operable valvesCOAL INDUSTRY PATENTS LTD·Filed 1978·Granted Apr 15, 1980·21 cites·9 claims
- 4469US4587852AConveyor belt tension sensingCOAL INDUSTRY PATENTS LTD·Filed 1984·Granted May 13, 1986·32 cites·12 claims
- 4569US4272129AMineral mining installationCOAL INDUSTRY PATENTS LTD·Filed 1979·Granted Jun 9, 1981·14 cites·21 claims
- 4669US3970541AGas extraction of coalCOAL INDUSTRY PATENTS LTD·Filed 1974·Granted Jul 20, 1976·24 cites·11 claims
- 4769US3966584AImprovements in and relating to the production of cokeCOAL INDUSTRY PATENTS LTD·Filed 1974·Granted Jun 29, 1976·12 cites·9 claims
- 4867US4852562AHelmetCOAL INDUSTRY PATENTS LTD·Filed 1988·Granted Aug 1, 1989·41 cites·6 claims
- 4967US4416769AFroth flotationCOAL INDUSTRY PATENTS LTD·Filed 1981·Granted Nov 22, 1983·20 cites·5 claims
- 5067US4371727AFuel oils from coalCOAL INDUSTRY PATENTS LTD·Filed 1980·Granted Feb 1, 1983·21 cites·5 claims
Showing the top 50 of 282 patent records by PatentIndex Score.
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