Grawunde; Frederick G.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Grawunde; Frederick G..The latest application filed is for "dynamically adjusting counterbalance valve".
- Grawunde; Frederick G. - Sarasota FL
- Grawunde; Frederick G. - Painesville OH
| Patent | Date |
|---|---|
| Dynamically adjusting counterbalance valve Grant 9,273,702 - Grawunde March 1, 2 | 2016-03-01 |
| Dynamically Adjusting Counterbalance Valve App 20130233409 - Grawunde; Frederick G. | 2013-09-12 |
| Metal Coating Process And Product App 20100092799 - McFaul; Surry D. ; et al. | 2010-04-15 |
| Metal coating process and product App 20080050608 - McFaul; Surry D. ; et al. | 2008-02-28 |
| Directional valve Grant 5,520,217 - Grawunde May 28, 1 | 1996-05-28 |
| Control valve Grant 4,346,733 - Grawunde August 31, 1 | 1982-08-31 |
| Control valve Grant 4,336,826 - Grawunde June 29, 1 | 1982-06-29 |
| Fluid control valve Grant 4,305,566 - Grawunde December 15, 1 | 1981-12-15 |
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