Chrien; David J
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chrien; David J.The latest application filed is for "utility trench system components".
- Chrien; David J - Shaker Heights OH US
- Chrien; David J. - Shaker Heights OH
| Patent | Date |
|---|---|
| Utility trench system components Grant 9,068,341 - Chrien June 30, 2 | 2015-06-30 |
| Utility trench system components App 20140360114 - Chrien; David J. | 2014-12-11 |
| Utility trench system components Grant 8,826,613 - Chrien September 9, 2 | 2014-09-09 |
| Pipe trench side panel elbow Grant D710,032 - Chrien July 29, 2 | 2014-07-29 |
| Pipe trench side panel Grant D709,627 - Chrien July 22, 2 | 2014-07-22 |
| Pipe trench side panel elbow Grant D705,447 - Chrien May 20, 2 | 2014-05-20 |
| Pipe trench side panel Grant D705,446 - Chrien May 20, 2 | 2014-05-20 |
| Utility trench side panel portion Grant D686,751 - Chrien July 23, 2 | 2013-07-23 |
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