Inventor · disambiguated record
Frederick O. Johnson
Also filed as: JOHNSON FREDERICK O
9 granted patents·144 citations·filing 1975–1985
89Inventor score
Files withWESTINGHOUSE ELECTRIC CORP9
Top patents by PatentIndex Score
9 records- 0186US3991352AApparatus and method for reducing effective inductance in a dynamic braking circuitWESTINGHOUSE ELECTRIC CORP·Filed 1975·Granted Nov 9, 1976·33 cites·12 claims
- 0284US4017744ADigital firing pulse generator for thyristor power convertersWESTINGHOUSE ELECTRIC CORP·Filed 1975·Granted Apr 12, 1977·30 cites·3 claims
- 0383US4664247AConveyor brake controlWESTINGHOUSE ELECTRIC CORP·Filed 1984·Granted May 12, 1987·40 cites·12 claims
- 0455US4286315AConverter apparatusWESTINGHOUSE ELECTRIC CORP·Filed 1979·Granted Aug 25, 1981·12 cites·5 claims
- 0547US4575664ATachometer check apparatusWESTINGHOUSE ELECTRIC CORP·Filed 1984·Granted Mar 11, 1986·11 cites·1 claims
- 0643US4277825AConverter apparatusWESTINGHOUSE ELECTRIC CORP·Filed 1979·Granted Jul 7, 1981·6 cites·6 claims
- 0737US4639851AMethod and apparatus for firing angle control of series connected thyristor switchesWESTINGHOUSE ELECTRIC CORP·Filed 1985·Granted Jan 27, 1987·7 cites·6 claims
- 0834US4258829AElevator systemWESTINGHOUSE ELECTRIC CORP·Filed 1979·Granted Mar 31, 1981·2 cites·8 claims
- 0931US4325115ARegulated DC power supplyWESTINGHOUSE ELECTRIC CORP·Filed 1980·Granted Apr 13, 1982·3 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →