Inventor · disambiguated record
Sten R. Gerfast
Also filed as: GERFAST STEN R · GERFAST STEN RUTGER
39 granted patents·18 pending applications·587 citations·filing 1981–2020
98Inventor score
Files withGERFAST STEN R32MINNESOTA MINING & MFG13IMATION CORP6MCMILLAN ELECTRIC COMPANY2GERFAST STEN RUTGER1
Top patents by PatentIndex Score
57 records- 0192US4883981ADynamoelectric machine having ironless stator coilGERFAST STEN R·Filed 1988·Granted Nov 28, 1989·74 cites·17 claims
- 0290US4814654AStator or rotor based on permanent magnet segmentsGERFAST STEN R·Filed 1984·Granted Mar 21, 1989·49 cites·10 claims
- 0388US6850019B2Single coil, direct current permanent magnet brushless motor with voltage boostMCMILLAN ELECTRIC COMPANY·Filed 2003·Granted Feb 1, 2005·33 cites·22 claims
- 0486US5558291ADrive for handling multiple size information storage media cartridges and cartridges thereforIMATION CORP·Filed 1994·Granted Sep 24, 1996·31 cites·62 claims
- 0584US6220539B1Drive for handling multiple size information storage media cartridges and cartridges thereforIMATION CORP·Filed 1999·Granted Apr 24, 2001·30 cites·17 claims
- 0683US4581667AMagnetic hold-down for recording discMINNESOTA MINING & MFG·Filed 1982·Granted Apr 8, 1986·24 cites·7 claims
- 0783US4365257AStretched-film optical recording discMINNESOTA MINING & MFG·Filed 1981·Granted Dec 21, 1982·24 cites·9 claims
- 0882US4750067AHead positioning mechanism for data cartridge recorderMINNESOTA MINING & MFG·Filed 1985·Granted Jun 7, 1988·41 cites·6 claims
- 0981US6940238B2Single coil, direct current permanent magnet brushless motor with voltage boostMCMILLAN ELECTRIC COMPANY·Filed 2004·Granted Sep 6, 2005·22 cites·13 claims
- 1081US5204570ASpheroidal machineGERFAST STEN R·Filed 1991·Granted Apr 20, 1993·46 cites·16 claims
- 1178US8074325B2Clip-type labelGERFAST STEN R·Filed 2005·Granted Dec 13, 2011·9 cites·17 claims
- 1278US4623570AStable stretched surface recording mediumMINNESOTA MINING & MFG·Filed 1985·Granted Nov 18, 1986·21 cites·6 claims
- 1376US9018819B2Brushless, ironless stator, single coil motor without laminationsGERFAST STEN R·Filed 2012·Granted Apr 28, 2015·3 cites·14 claims
- 1471US7445284B2In-expensive head and upper torso restraint with u-shaped air bagGERFAST STEN R·Filed 2007·Granted Nov 4, 2008·12 cites·18 claims
- 1571US4929871ATransformerless current-limiting circuitGERFAST STEN R·Filed 1987·Granted May 29, 1990·27 cites·17 claims
- 1668US6628495B2Fast acting, re-settable circuit breaker without moving partsFiled 2001·Granted Sep 30, 2003·13 cites·18 claims
- 1764US8581539B2Efficient circuit for brushless low cogging machine with congruent statorGERFAST STEN R·Filed 2010·Granted Nov 12, 2013·1 cites·21 claims
- 1864US4610601AMethod of making axial fan impellerGERFAST STEN R·Filed 1984·Granted Sep 9, 1986·13 cites·11 claims
- 1963US5786967ATape cartridge including an indication device to distinguish between cartridges having different characteristics but nearly identical physical characteristicsIMATION CORP·Filed 1993·Granted Jul 28, 1998·16 cites·4 claims
- 2062US4729805ARecording medium annealing processMINNESOTA MINING & MFG·Filed 1986·Granted Mar 8, 1988·13 cites·8 claims
- 2161US5779172ADrive for handling multiple size information storage media cartridges and cartridges thereforIMATION CORP·Filed 1996·Granted Jul 14, 1998·10 cites·9 claims
- 2260US10333235B1Selecting switching functions using screw-force, on modules having tracesGERFAST STEN R·Filed 2018·Granted Jun 25, 2019·0 cites·6 claims
- 2359US7847674B2Two terminal variable resistorGERFAST STEN R·Filed 2005·Granted Dec 7, 2010·1 cites·20 claims
- 2456US7065854B2Abutting clinch-joining methodGERFAST STEN R·Filed 2003·Granted Jun 27, 2006·5 cites·7 claims
- 2556US4573096AClam-shell cartridge for recording discMINNESOTA MINING & MFG·Filed 1982·Granted Feb 25, 1986·8 cites·7 claims
- 2653US4984119ACleaning apparatus for magnetic data tape cartridgesMINNESOTA MINING & MFG·Filed 1990·Granted Jan 8, 1991·12 cites·13 claims
- 2752US7371265B2Continuous hydrogen and alcohol generator from coalGERFAST STEN R·Filed 2005·Granted May 13, 2008·0 cites·19 claims
- 2851US2021099060A1Combination motor generator with odd-numbered stator and magnetGERFAST STEN R·Filed 2019·Application pending·0 cites
- 2951US2006060165A1Internal combustion engine witouth oilGERFAST STEN R·Filed 2005·Application pending·0 cites
- 3050US4625384AMethod of making a recording discMINNESOTA MINING & MFG·Filed 1984·Granted Dec 2, 1986·6 cites·5 claims
- 3150US2008196305A1Continuous hydrogen and alcohol generator from coalGERFAST STEN RUTGER·Filed 2008·Application pending·0 cites
- 3248US5480103AMechanically incompatible magnetic recording tape cartridges having the same form factorMINNESOTA MINING & MFG·Filed 1994·Granted Jan 2, 1996·7 cites·5 claims
- 3347US2020076258A1Linear series of open jaw coil winding slotsGERFAST STEN R·Filed 2018·Application pending·0 cites
- 3446US4712977AAxial fanGERFAST STEN R·Filed 1986·Granted Dec 15, 1987·9 cites·12 claims
- 3546US2006060164A1Internal combustion engine without oilGERFAST STEN R·Filed 2004·Application pending·0 cites
- 3645USD366059STape cartridgeMINNESOTA MINING & MFG·Filed 1994·Granted Jan 9, 1996·5 cites·1 claims
- 3744US2007228734A1Inductive device actuated by body motionGERFAST STEN R·Filed 2006·Application pending·0 cites
- 3844US2022278580A1Three pulse, odd-even motor winding systemGERFAST STEN R·Filed 2020·Application pending·0 cites
- 3944US2018168779A1Anchoring system for prostheticsGERFAST STEN R·Filed 2016·Application pending·0 cites
- 4043US6079653ADrive for handling multiple size information storage media cartridges and cartridges thereforIMATION CORP·Filed 1998·Granted Jun 27, 2000·4 cites·31 claims
- 4141US8378546B2Generator with output options and low loss windingsGERFAST STEN R·Filed 2003·Granted Feb 19, 2013·0 cites·18 claims
- 4241US2020001731A1Continuous recharging of driverless electric vehicles without human inter action.GERFAST STEN R·Filed 2018·Application pending·0 cites
- 4341US2019193566A1Automatic charging when driving on a road having contactsGERFAST STEN R·Filed 2017·Application pending·0 cites
- 4441US2014327386A1Radio-controllable ac-powered motors with several functionsGERFAST STEN R·Filed 2013·Application pending·0 cites
- 4540US5949611AAlignment and latching mechanism in a drive for magnetic data tape mini-cartridgesHEWLETT PACKARD CO·Filed 1997·Granted Sep 7, 1999·5 cites·4 claims
- 4640US2005099077A1Magnetic coupling using magnets on a motor rotorFiled 2003·Application pending·0 cites
- 4739US2014176330A1Inexpensive safety alerting devices for munitions and a detector for sameGERFAST STEN R·Filed 2012·Application pending·0 cites
- 4838US2017291496A1Automatic, dual power, inductive and conductive charger for electric cars.GERFAST STEN R·Filed 2016·Application pending·0 cites
- 4937US2006145638A1Control signals for single coil brushless motorGERFAST STEN R·Filed 2004·Application pending·0 cites
- 5037US2016225506A1Unique magnetic effect and applicationsGERFAST STEN R·Filed 2015·Application pending·0 cites
Showing the top 50 of 57 patent records by PatentIndex Score.
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