Roach; James D.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Roach; James D..The latest application filed is for "variable rate pumping system".
- Roach; James D. - Duncan OK
- Roach; James D. - Henderson CO
- Roach; James D. - Yuma AZ
| Patent | Date |
|---|---|
| Double-acting, duplex pump controlled by two, two position spool valves Grant 7,713,033 - Roach May 11, 2 | 2010-05-11 |
| Variable Rate Pumping System App 20090252616 - Brunet; John Dexter ; et al. | 2009-10-08 |
| Variable rate pumping system Grant 7,563,076 - Brunet , et al. July 21, 2 | 2009-07-21 |
| Double-acting, duplex pump controlled by two, two position spool valves App 20060099087 - Roach; James D. | 2006-05-11 |
| Variable rate pumping system App 20060088423 - Brunet; John Dexter ; et al. | 2006-04-27 |
| Packing arrangement Grant 4,440,404 - Roach , et al. April 3, 1 | 1984-04-03 |
| Magnetic Pickup Element Adapter For Flowmeters Grant 3,710,623 - Boyd , et al. January 16, 1 | 1973-01-16 |
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