KROCHAK; Darryl
Patent Applications and Registrations
Patent applications and USPTO patent grants for KROCHAK; Darryl.The latest application filed is for "trench box and method of assembly".
- KROCHAK; Darryl - Innisfail CA
- Krochak; Darryl - Edmonton CA
| Patent | Date |
|---|---|
| Trench Box And Method Of Assembly App 20220220689 - FOLEY; James ; et al. | 2022-07-14 |
| Trench box and method of assembly Grant 11,286,634 - Foley , et al. March 29, 2 | 2022-03-29 |
| Trench Box And Method Of Assembly App 20200190763 - FOLEY; James ; et al. | 2020-06-18 |
| Trench box and method of assembly Grant 10,604,906 - Foley , et al. | 2020-03-31 |
| Trench Box And Method Of Assembly App 20180209114 - FOLEY; James ; et al. | 2018-07-26 |
| Quick coupling mechanism for tool attachment Grant 7,654,019 - Yeager , et al. February 2, 2 | 2010-02-02 |
| Quick Coupling Mechanism for Tool Attachment App 20080296031 - Yeager; Murray ; et al. | 2008-12-04 |
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