DeLong; Robert C.
Patent Applications and Registrations
Patent applications and USPTO patent grants for DeLong; Robert C..The latest application filed is for "keyless bearing sleeve for subterranean applications".
- DeLong; Robert C. - Owasso OK US
- Delong; Robert C. - Leduc CA
| Patent | Date |
|---|---|
| Keyless bearing sleeve for subterranean applications Grant 8,721,181 - Semple , et al. May 13, 2 | 2014-05-13 |
| Keyless Bearing Sleeve for Subterranean Applications App 20120076448 - Semple; Ryan P. ; et al. | 2012-03-29 |
| Abrasion resistant pump thrust bearing Grant 7,575,413 - Semple , et al. August 18, 2 | 2009-08-18 |
| Abrasion resistant pump thrust bearing App 20060204359 - Semple; Ryan P. ; et al. | 2006-09-14 |
| Retrievable downhole flow meter Grant 7,086,294 - DeLong August 8, 2 | 2006-08-08 |
| Retrievable downhole flow meter App 20050183515 - DeLong, Robert C. | 2005-08-25 |
| Horizontal thrust bearing assembly Grant 5,667,314 - Limanowka , et al. September 16, 1 | 1997-09-16 |
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