Walker; Roger E.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Walker; Roger E..The latest application filed is for "automated retractable information display device".
- Walker; Roger E. - Savannah GA US
- Walker; Roger E. - Franklin Township PA
| Patent | Date |
|---|---|
| Automated retractable information display device Grant 11,086,354 - Walker August 10, 2 | 2021-08-10 |
| Dual baffle apparatus for electrical switching device Grant 5,861,596 - Grass , et al. January 19, 1 | 1999-01-19 |
| Compact DC/AC circuit breaker with common arc extinguishing capability Grant 4,962,406 - Walker , et al. October 9, 1 | 1990-10-09 |
| Circuit breaker with arc gas vent baffle Grant 4,650,940 - Grunert , et al. March 17, 1 | 1987-03-17 |
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