Griepentrog; Dal Frank
Patent Applications and Registrations
Patent applications and USPTO patent grants for Griepentrog; Dal Frank.The latest application filed is for "non-linear signal processor".
- Griepentrog; Dal Frank - Indianapolis IN
| Patent | Date |
|---|---|
| Video display protection circuit Grant 6,847,404 - Jackson , et al. January 25, 2 | 2005-01-25 |
| Non-linear signal processor Grant 6,710,658 - Griepentrog March 23, 2 | 2004-03-23 |
| Video output stage with self-regulating beam current limiting Grant 6,614,482 - Griepentrog September 2, 2 | 2003-09-02 |
| Automatic screen saver Grant 6,563,495 - Griepentrog May 13, 2 | 2003-05-13 |
| Non-linear signal processor App 20020171491 - Griepentrog, Dal Frank | 2002-11-21 |
| Focus voltage tracking circuit Grant 6,115,085 - George , et al. September 5, 2 | 2000-09-05 |
| Automatic Beam Current Limiter Grant 3,674,932 - Griepentrog July 4, 1 | 1972-07-04 |
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