Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D574880 | Stamp for cementitious material or the like | — | 2008-08-12 |
| 6951435 | Method and apparatus for forming new and retrofit detectable warning surfaces | — | 2005-10-04 |
| 6848979 | Concrete blasting device with clear wand, stiff brush, recovery cylinder, and recirculating cylinder | — | 2005-02-01 |
| 5271690 | Method and apparatus for forming walkways having detectable warning surfaces | — | 1993-12-21 |
| D338817 | Concrete stamping member | — | 1993-08-31 |
| 5219511 | Method of constructing a tool for forming a decorative impression in a moldable material | — | 1993-06-15 |
| 5061172 | Apparatus for forming a decorative impression in a moldable material | — | 1991-10-29 |