Roll; Eric D.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Roll; Eric D..The latest application filed is for "gasketless high pressure connection".
- Roll; Eric D. - Joplin MO
- Roll, Eric D. - Bryan OH
| Patent | Date |
|---|---|
| Gasketless high pressure connection Grant 10,502,207 - Roll Dec | 2019-12-10 |
| Gasketless High Pressure Connection App 20160186745 - Roll; Eric D. | 2016-06-30 |
| Gasketless high pressure connection Grant 9,309,873 - Roll April 12, 2 | 2016-04-12 |
| Gasketless High Pressure Connection App 20130087039 - Roll; Eric D. | 2013-04-11 |
| Close fit cylinder and plunger App 20070009367 - Tischler; Dieter A. ; et al. | 2007-01-11 |
| Non-metallic pressure caps and diaphragm pump housings incorporating same App 20040069140 - Able, Stephen D. ; et al. | 2004-04-15 |
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