Petersen; Sigrud R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Petersen; Sigrud R..The latest application filed is for "dynamoelectric machines brushless supplemental excitation system".
- Petersen; Sigrud R. - North Huntingdon PA
- Petersen; Sigrud R. - Irwin PA
| Patent | Date |
|---|---|
| Dynamoelectric machines brushless supplemental excitation system Grant 4,336,486 - Gorden , et al. June 22, 1 | 1982-06-22 |
| Rotating Rectifier Assembly For Brushless Exciters Grant 3,872,335 - Petersen , et al. March 18, 1 | 1975-03-18 |
| Rectifier Assembly For Brushless Excitation Systems Grant 3,829,725 - Petersen , et al. August 13, 1 | 1974-08-13 |
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