Inventor · disambiguated record
John R. Frus
Also filed as: FRUS JOHN · FRUS JOHN R
20 granted patents·665 citations·filing 1975–2002
97Inventor score
Top patents by PatentIndex Score
20 records- 0196US5754011AMethod and apparatus for controllably generating sparks in an ignition system or the likeUNISON IND LP·Filed 1995·Granted May 19, 1998·71 cites·62 claims
- 0294US5065073AApparatus and method for providing ignition to a turbine engineFRUS JOHN R·Filed 1988·Granted Nov 12, 1991·53 cites·26 claims
- 0393US5399942AApparatus and method for providing ignition to a turbine engineUNISON IND LP·Filed 1993·Granted Mar 21, 1995·34 cites·6 claims
- 0493US5148084AApparatus and method for providing ignition to a turbine engineUNISON IND INC·Filed 1990·Granted Sep 15, 1992·42 cites·7 claims
- 0592US6353293B1Method and apparatus for controllably generating sparks in an ignition system or the likeUNISON IND·Filed 2000·Granted Mar 5, 2002·24 cites·4 claims
- 0692US4074179APosition detection methods and apparatus for stepping motorsWARNER ELECTRIC BRAKE & CLUTCH·Filed 1975·Granted Feb 14, 1978·50 cites·55 claims
- 0791US5245252AApparatus and method for providing ignition to a turbine engineFRUS JOHN R·Filed 1991·Granted Sep 14, 1993·43 cites·8 claims
- 0889US5561350AIgnition System for a turbine engineUNISON IND·Filed 1995·Granted Oct 1, 1996·45 cites·18 claims
- 0988US6484707B1Method and apparatus for generating a sustained arc at a sparking deviceUNISON IND INC·Filed 2000·Granted Nov 26, 2002·24 cites·19 claims
- 1085US5343154ADiagnostic device for gas turbine ignition systemUNISON IND INC·Filed 1992·Granted Aug 30, 1994·21 cites·4 claims
- 1184US5523691ADiagnostic device for gas turbine ignition systemUNISON IND LP·Filed 1995·Granted Jun 4, 1996·37 cites·1 claims
- 1283US5168187AAxial pole stepping motorDANA CORP WARNER ELECTRIC BRAK·Filed 1991·Granted Dec 1, 1992·69 cites·24 claims
- 1378US7095181B2Method and apparatus for controllably generating sparks in an ignition system or the likeUNSION IND·Filed 2002·Granted Aug 22, 2006·13 cites·28 claims
- 1477US5675257ADiagnostic device for gas turbine ignition systemUNISON IND LP·Filed 1994·Granted Oct 7, 1997·37 cites·13 claims
- 1577US5155437ADiagnostic device for gas turbine ignition systemUNISON IND LP·Filed 1990·Granted Oct 13, 1992·37 cites·22 claims
- 1662US6771519B2Method and apparatus for generating high voltageUNISON IND INC·Filed 2002·Granted Aug 3, 2004·16 cites·9 claims
- 1759US6034483AMethod for generating and controlling spark plume characteristicsUNISON IND INC·Filed 1997·Granted Mar 7, 2000·9 cites·12 claims
- 1848US5057831AVehicle simulation circuit for loop traffic signal control systemSIGNALMATIC INTERNATIONAL INC·Filed 1990·Granted Oct 15, 1991·19 cites·28 claims
- 1947US5347422AApparatus and method for an ignition systemUNISON IND LP·Filed 1992·Granted Sep 13, 1994·16 cites·9 claims
- 2040US6081074AMethod and apparatus for offsetting power draw in a multiple channel systemUNISON IND INC·Filed 1996·Granted Jun 27, 2000·5 cites·28 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →