Blenkush; Robert A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Blenkush; Robert A..The latest application filed is for "bidirectional knife gate valve with a perimeter seat".
- Blenkush; Robert A. - Sartell MN
- Blenkush; Robert A - Sartell MN
- Blenkush; Robert A. - St. Cloud MN
| Patent | Date |
|---|---|
| Bidirectional knife gate valve with a perimeter seat Grant 10,054,238 - Watterodt , et al. August 21, 2 | 2018-08-21 |
| Bidirectional Knife Gate Valve With A Perimeter Seat App 20160076657 - Watterodt; Sidney ; et al. | 2016-03-17 |
| Valve wear ring and gate valve with wear ring Grant 9,140,397 - Blenkush , et al. September 22, 2 | 2015-09-22 |
| Valve Wear Ring And Gate Valve With Wear Ring App 20130334453 - Blenkush; Robert A. ; et al. | 2013-12-19 |
| Wear Ring Retainer For A Gate Valve App 20130334451 - Blenkush; Robert A. ; et al. | 2013-12-19 |
| Bi-directional knife gate valve apparatus and method Grant 7,458,559 - Blenkush December 2, 2 | 2008-12-02 |
| Bi-directional knife gate valve apparatus and method App 20080017825 - Blenkush; Robert A. | 2008-01-24 |
| Compression key lockout device for a gate valve Grant 6,273,125 - Blenkush , et al. August 14, 2 | 2001-08-14 |
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