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Knoxville, TN, United States of America

Alfred A Frankenberg

USPTO Granted Patents = 11

Average Co-Inventor Count = 1.2

ph-index = 6

Forward Citations = 145(Granted Patents)

Location History:

Knoxville, TN (US) (1979 - 1988)
Seymour, TN (US) (1995 - 1996)
Blount County, TN (US) (2001)

Company Filing History:

Robertshaw Controls Company

Years Active: 1979-2001

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11 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6182684 - Bellows balanced valve (2001-02-06),

2. 5494255 - Solenoid activated exhaust gas recirculation valve (1996-02-27),

3. 5460146 - Solenoid activated exhaust gas recirculation valve (1995-10-24),

4. 4753537 - Digital clock construction, pinion gear therefor and methods of making (1988-06-28),

5. 4653932 - Digital clock construction, pinion gear therefor and methods of making (1987-03-31),

6. 4505106 - Exhaust system for an internal combustion engine, burn-off unit and (1985-03-19),

7. 4449362 - Exhaust system for an internal combustion engine, burn-off unit and (1984-05-22),

8. 4241872 - Pneumatically operated thermostat construction and method of making the (1980-12-30),

9. 4237771 - Pneumatically operated actuator and method of making the same (1980-12-09),

10. 4192453 - Thermostat construction and method of making the same (1980-03-11),

11. 4178837 - Pneumatically operated actuator and method of making the same (1979-12-18),

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