Spinnler; Ralph F.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Spinnler; Ralph F..The latest application filed is for "electromechanical transducer for acoustic telemetry system".
- Spinnler; Ralph F. - Glastonbury CT
| Patent | Date |
|---|---|
| Electromechanical transducer for acoustic telemetry system Grant 5,128,902 - Spinnler July 7, 1 | 1992-07-07 |
| Centrifugal debris catcher Grant 4,857,175 - Spinnler August 15, 1 | 1989-08-15 |
| Electrical connector for borehole telemetry apparatus Grant 4,319,240 - Stone , et al. March 9, 1 | 1982-03-09 |
| Pilot operated mud-pulse valve Grant 3,958,217 - Spinnler May 18, 1 | 1976-05-18 |
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