Assignee
NORTHERN ENG IND
37 granted patents·662 citations·filing 1978–1993
Top patents by PatentIndex Score
37 records- 0192US4583413AToothed gear systemNORTHERN ENG IND·Filed 1984·Granted Apr 22, 1986·79 cites·7 claims
- 0290US4511807AElectrical generator control systemNORTHERN ENG IND·Filed 1983·Granted Apr 16, 1985·90 cites·14 claims
- 0381US4930430ABurnersNORTHERN ENG IND·Filed 1989·Granted Jun 5, 1990·43 cites·13 claims
- 0480US4320568AMethod of expanding tubular membersNORTHERN ENG IND·Filed 1981·Granted Mar 23, 1982·49 cites·7 claims
- 0578US4272706AMooring winch systemNORTHERN ENG IND·Filed 1978·Granted Jun 9, 1981·27 cites·8 claims
- 0671US5193049AEnclosures for electrical switchgearNORTHERN ENG IND·Filed 1991·Granted Mar 9, 1993·48 cites·9 claims
- 0769US4894573ARotary electrical machinesNORTHERN ENG IND·Filed 1988·Granted Jan 16, 1990·29 cites·15 claims
- 0867US5087230ADrive transmissionsNORTHERN ENG IND·Filed 1990·Granted Feb 11, 1992·23 cites·8 claims
- 0967US5083989ADrive transmissionsNORTHERN ENG IND·Filed 1990·Granted Jan 28, 1992·17 cites·10 claims
- 1067US4347414AArc shorting deviceNORTHERN ENG IND·Filed 1980·Granted Aug 31, 1982·16 cites·9 claims
- 1165US4298696ARegeneration of ion exchange materialsNORTHERN ENG IND·Filed 1980·Granted Nov 3, 1981·19 cites·11 claims
- 1263US4980528AArc interrupterNORTHERN ENG IND·Filed 1988·Granted Dec 25, 1990·14 cites·15 claims
- 1359US4577128AInduction motorsNORTHERN ENG IND·Filed 1985·Granted Mar 18, 1986·24 cites·4 claims
- 1459US4431886ACircuit-breakerNORTHERN ENG IND·Filed 1982·Granted Feb 14, 1984·10 cites·9 claims
- 1558US4752659AArc interrupterNORTHERN ENG IND·Filed 1987·Granted Jun 21, 1988·11 cites·25 claims
- 1658US4503302AArc interrupterNORTHERN ENG IND·Filed 1983·Granted Mar 5, 1985·15 cites·14 claims
- 1747US4425087APressure equalizing device and deep well motor/pump combinationNORTHERN ENG IND·Filed 1981·Granted Jan 10, 1984·14 cites·4 claims
- 1847US4383046ARegeneration of ion exchange materialsNORTHERN ENG IND·Filed 1982·Granted May 10, 1983·9 cites·8 claims
- 1945US5191991AHousings with safety pressure relief means thereonNORTHERN ENG IND·Filed 1991·Granted Mar 9, 1993·19 cites·5 claims
- 2045US4457841ARegeneration of ion exchange materialsNORTHERN ENG IND·Filed 1981·Granted Jul 3, 1984·7 cites·8 claims
- 2143US4743719AArc interrupterNORTHERN ENG IND·Filed 1987·Granted May 10, 1988·6 cites·13 claims
- 2241US4343170AApparatus for expanding tubular membersNORTHERN ENG IND·Filed 1981·Granted Aug 10, 1982·6 cites·9 claims
- 2339US4442229ARegeneration of ion exchange materialsNORTHERN ENG IND·Filed 1983·Granted Apr 10, 1984·6 cites·1 claims
- 2438US4748302AArc interrupterNORTHERN ENG IND·Filed 1987·Granted May 31, 1988·4 cites·9 claims
- 2538US4516728ALiquid fuel atomizerNORTHERN ENG IND·Filed 1983·Granted May 14, 1985·12 cites·10 claims
- 2636US5391301AMethod of regenerating resin beads for use in water purificationNORTHERN ENG IND·Filed 1993·Granted Feb 21, 1995·7 cites·1 claims
- 2736US4764123AElectrical connectorsNORTHERN ENG IND·Filed 1987·Granted Aug 16, 1988·9 cites·9 claims
- 2836US4434723AFluidized-bed combustion apparatusNORTHERN ENG IND·Filed 1981·Granted Mar 6, 1984·9 cites·1 claims
- 2934US4998508ACondensing type boilersNORTHERN ENG IND·Filed 1989·Granted Mar 12, 1991·6 cites·1 claims
- 3031US4776950AClassifierNORTHERN ENG IND·Filed 1986·Granted Oct 11, 1988·7 cites·13 claims
- 3131US4407634AAxial-flow steam turbine wheelNORTHERN ENG IND·Filed 1982·Granted Oct 4, 1983·9 cites·5 claims
- 3230US5117991AWinch systemNORTHERN ENG IND·Filed 1990·Granted Jun 2, 1992·2 cites·8 claims
- 3328US5424024AApparatus for and method of preparing a hardenable substance for storageNORTHERN ENG IND·Filed 1992·Granted Jun 13, 1995·3 cites·15 claims
- 3428US4790480ALiquid fuel atomiserNORTHERN ENG IND·Filed 1987·Granted Dec 13, 1988·12 cites·18 claims
- 3521US4480241ADiscriminator deviceNORTHERN ENG IND·Filed 1983·Granted Oct 30, 1984·0 cites·6 claims
- 3612US4421063AFluidized bed combustion apparatusNORTHERN ENG IND·Filed 1981·Granted Dec 20, 1983·1 cites·4 claims
- 379US4466291AExtensometerNORTHERN ENG IND·Filed 1982·Granted Aug 21, 1984·0 cites·12 claims
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