Freeman; Norman A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Freeman; Norman A..The latest application filed is for "fuel cell power system having multiple fuel cell modules".
- Freeman; Norman A. - Richmond Hill CA
- Freeman, Norman A. - Toronto CA
- Freeman; Norman A. - Fullerton CA
| Patent | Date |
|---|---|
| Method and apparatus for monitoring fuel cell voltages Grant 7,148,654 - Burany , et al. December 12, 2 | 2006-12-12 |
| Fuel cell power system having multiple fuel cell modules App 20050112428 - Freeman, Norman A. ; et al. | 2005-05-26 |
| Fuel cell testing system having an energy conversion system for providing a useful output App 20050007144 - Freeman, Norman A. ; et al. | 2005-01-13 |
| System and method for measuring fuel cell voltage and high frequency resistance Grant 6,816,797 - Freeman , et al. November 9, 2 | 2004-11-09 |
| Method and apparatus for monitoring fuel cell voltages App 20040150405 - Burany, Stephen ; et al. | 2004-08-05 |
| Measurement of fuel cell impedance Grant 6,519,539 - Freeman , et al. February 11, 2 | 2003-02-11 |
| System and method for measuring fuel cell voltage and high frequency resistance App 20020196025 - Freeman, Norman A. ; et al. | 2002-12-26 |
| Receptacle for insecticide or repellent Grant 4,065,872 - Patton , et al. January 3, 1 | 1978-01-03 |
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