Roycroft; Robert G.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Roycroft; Robert G..The latest application filed is for "well plunger systems".
- Roycroft; Robert G. - Houston TX
- Roycroft; Robert G. - Whitehouse TX US
| Patent | Date |
|---|---|
| Well plunger systems Grant 10,907,452 - Roycroft , et al. February 2, 2 | 2021-02-02 |
| Well Plunger Systems App 20190085666 - Roycroft; Robert G. ; et al. | 2019-03-21 |
| Well plunger systems Grant 10,161,230 - Roycroft , et al. Dec | 2018-12-25 |
| Well Plunger Systems App 20170268318 - Roycroft; Robert G. ; et al. | 2017-09-21 |
| Bypass Dart And Assembly App 20160215600 - Roycroft; Robert G. ; et al. | 2016-07-28 |
| Bypass Dart And Assembly App 20160168963 - Roycroft; Robert G. ; et al. | 2016-06-16 |
| Inducer speed control method for combustion furnace Grant 9,261,277 - Hugghins , et al. February 16, 2 | 2016-02-16 |
| Bumper Assembly Having Progressive Rate Spring App 20160017700 - Roycroft; Robert G. ; et al. | 2016-01-21 |
| Air conditioning apparatus with integrated air filtration system Grant 7,601,204 - Woodruff , et al. October 13, 2 | 2009-10-13 |
| Inducer speed control method for combustion furnace App 20090044794 - Hugghins; Gordon Jeffrey ; et al. | 2009-02-19 |
| Air conditioning apparatus with integrated air filtration system App 20080053309 - Woodruff; Mark D. ; et al. | 2008-03-06 |
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