Spencer; James R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Spencer; James R..The latest application filed is for "seat faced engine valves and method of making seat faced engine valves".
- Spencer; James R. - Kanawha IA
- Spencer; James R. - Sayre PA
- Spencer; James R. - Woburn MA
| Patent | Date |
|---|---|
| Seat faced engine valves and method of making seat faced engine valves Grant 6,385,847 - Larson , et al. May 14, 2 | 2002-05-14 |
| Process for producing tungsten heavy alloys Grant 4,990,195 - Spencer , et al. February 5, 1 | 1991-02-05 |
| Fine grain tungsten heavy alloys containing additives Grant 4,986,961 - Spencer , et al. January 22, 1 | 1991-01-22 |
| Low profile integrated circuit electrical socket assembly Grant 4,470,649 - Spencer , et al. September 11, 1 | 1984-09-11 |
| Electrical switch having a reciprocating wiping actuator Grant 4,429,201 - Dekkers , et al. January 31, 1 | 1984-01-31 |
| Free flowing, sintered, refractory agglomerates Grant 3,881,911 - Cheney , et al. May 6, 1 | 1975-05-06 |
| SEC | 0001227086 | SPENCER JAMES R |
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