Assignee
ROTRON INC
US·18 granted patents·806 citations·filing 1976–2000
Top patents by PatentIndex Score
18 records- 0195US4553075ASimple brushless DC fan motor with reversing fieldROTRON INC·Filed 1983·Granted Nov 12, 1985·85 cites·21 claims
- 0294US4089618AFan with noise reductionROTRON INC·Filed 1976·Granted May 16, 1978·152 cites·8 claims
- 0388US4633110AMotor with stator on printed circuit assemblyROTRON INC·Filed 1985·Granted Dec 30, 1986·78 cites·12 claims
- 0484US4438362ASelf-starting, direct current motor with permanent magnets of varied magnetic strengthROTRON INC·Filed 1982·Granted Mar 20, 1984·40 cites·8 claims
- 0583US4618806AIronless, brushless DC motor with wave-windingROTRON INC·Filed 1985·Granted Oct 21, 1986·57 cites·14 claims
- 0682US4365187ABrushless D.C. motorROTRON INC·Filed 1980·Granted Dec 21, 1982·42 cites·9 claims
- 0779US4563622ASimple brushless DC fan motorROTRON INC·Filed 1985·Granted Jan 7, 1986·63 cites·22 claims
- 0876US4494028AIntegral coaxial commutation and rotor magnets and apparatus and method for making sameROTRON INC·Filed 1982·Granted Jan 15, 1985·20 cites·12 claims
- 0975US6453504B1Power driven wiper system for outside vehicle mirrorsROTRON INC·Filed 2000·Granted Sep 24, 2002·33 cites·17 claims
- 1072US4484114ASelf-starting brushless DC motorROTRON INC·Filed 1982·Granted Nov 20, 1984·34 cites·11 claims
- 1170US5656494ABiofilter with modular traysROTRON INC·Filed 1995·Granted Aug 12, 1997·39 cites·14 claims
- 1266US5117167ACommutating energy suppression circuit for an electronically commutated DC motorROTRON INC·Filed 1990·Granted May 26, 1992·25 cites·14 claims
- 1364US4506218ACondition sensing arrangement for ac machinesROTRON INC·Filed 1981·Granted Mar 19, 1985·24 cites·12 claims
- 1462US5595910ABiofilter with modular traysROTRON INC·Filed 1993·Granted Jan 21, 1997·26 cites·24 claims
- 1562US4542768APressure relief valveROTRON INC·Filed 1984·Granted Sep 24, 1985·22 cites·6 claims
- 1661US5546295AElectrical power converter, power supply, and inverter with series-connected switching circuitsROTRON INC·Filed 1995·Granted Aug 13, 1996·37 cites·22 claims
- 1758US4845411ABrushless DC motor and encoding techniqueROTRON INC·Filed 1987·Granted Jul 4, 1989·21 cites·7 claims
- 1834US4564793ABrushless DC motor with improved startingROTRON INC·Filed 1983·Granted Jan 14, 1986·8 cites·12 claims
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