Gravier; Robert A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Gravier; Robert A..The latest application filed is for "concrete blocks with non-geometric face surfaces".
- Gravier; Robert A. - Edina MN
- Gravier, Robert A. - Bloomington MN
| Patent | Date |
|---|---|
| Concrete Blocks With Non-geometric Face Surfaces App 20090000234 - Bott; Timothy A. ; et al. | 2009-01-01 |
| Reinforcing system for stackable retaining wall units Grant 6,792,731 - Bott , et al. September 21, 2 | 2004-09-21 |
| Reinforcing system for stackable retaining wall units App 20030213203 - Bott, Timothy A. ; et al. | 2003-11-20 |
| Wall Block With Interlock App 20030041546 - Bott, Timothy A. ; et al. | 2003-03-06 |
| Wall block with interlock Grant 6,523,317 - Bott , et al. February 25, 2 | 2003-02-25 |
| Block structure and system for arranging above-ground fencing, railing and/or sound barriers Grant 5,623,797 - Gravier , et al. April 29, 1 | 1997-04-29 |
| Method of forming concrete retaining wall block Grant 5,484,236 - Gravier January 16, 1 | 1996-01-16 |
| Concrete block for retaining walls Grant 4,909,010 - Gravier March 20, 1 | 1990-03-20 |
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