Inventor · disambiguated record
Alfred A. Frankenberg
Also filed as: FRANKENBERG ALFRED A
11 granted patents·281 citations·filing 1977–1999
91Inventor score
Files withROBERTSHAW CONTROLS CO11
Top patents by PatentIndex Score
11 records- 0192US5494255ASolenoid activated exhaust gas recirculation valveROBERTSHAW CONTROLS CO·Filed 1994·Granted Feb 27, 1996·75 cites·32 claims
- 0290US4449362AExhaust system for an internal combustion engine, burn-off unit and methods thereforROBERTSHAW CONTROLS CO·Filed 1981·Granted May 22, 1984·73 cites·26 claims
- 0388US5460146ASolenoid activated exhaust gas recirculation valveROBERTSHAW CONTROLS CO·Filed 1994·Granted Oct 24, 1995·56 cites·11 claims
- 0471US4505106AExhaust system for an internal combustion engine, burn-off unit and methods thereforROBERTSHAW CONTROLS CO·Filed 1984·Granted Mar 19, 1985·36 cites·7 claims
- 0557US4241872APneumatically operated thermostat construction and method of making the sameROBERTSHAW CONTROLS CO·Filed 1979·Granted Dec 30, 1980·13 cites·22 claims
- 0646US6182684B1Bellows balanced valveROBERTSHAW CONTROLS CO·Filed 1999·Granted Feb 6, 2001·17 cites·24 claims
- 0738US4178837APneumatically operated actuator and method of making the sameROBERTSHAW CONTROLS CO·Filed 1977·Granted Dec 18, 1979·4 cites·8 claims
- 0835US4237771APneumatically operated actuator and method of making the sameROBERTSHAW CONTROLS CO·Filed 1979·Granted Dec 9, 1980·3 cites·7 claims
- 0932US4192453AThermostat construction and method of making the sameROBERTSHAW CONTROLS CO·Filed 1977·Granted Mar 11, 1980·2 cites·18 claims
- 1029US4753537ADigital clock construction, pinion gear therefor and methods of making the sameROBERTSHAW CONTROLS CO·Filed 1986·Granted Jun 28, 1988·1 cites·6 claims
- 1129US4653932ADigital clock construction, pinion gear therefor and methods of making the sameROBERTSHAW CONTROLS CO·Filed 1985·Granted Mar 31, 1987·1 cites·20 claims
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