Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D466229 | Retaining wall block | Angelo Risi | 2002-11-26 |
| D465855 | Retaining wall block | Angelo Risi | 2002-11-19 |
| D464440 | Retaining wall block | Angelo Risi | 2002-10-15 |
| D464149 | Retaining wall block | Angelo Risi | 2002-10-08 |
| D403785 | Modular block | Angelo Risi | 1999-01-05 |
| D403437 | Modular block | Angelo Risi | 1998-12-29 |
| D403438 | Modular block | Angelo Risi | 1998-12-29 |
| 5622456 | Retaining wall blocks | Angelo Risi | 1997-04-22 |
| D370272 | Retaining wall block | Angelo Risi | 1996-05-28 |
| D346031 | Modular block | Angelo Risi | 1994-04-12 |
| D341432 | Modular block | Angelo Risi | 1993-11-16 |
| D340293 | Modular block | Angelo Risi | 1993-10-12 |
| 5248226 | Connector for use in combination with blocks for wall structures or the like | Angelo Risi | 1993-09-28 |
| 5064313 | Embankment reinforcing structures | Angelo Risi | 1991-11-12 |
| D320088 | Modular block | Angelo Risi | 1991-09-17 |
| D305938 | Modular block | Angelo Risi | 1990-02-06 |
| D301063 | Modular block | Angelo Risi | 1989-05-09 |
| 4815897 | Retaining wall system | Angelo Risi | 1989-03-28 |
| D299069 | Reversible modular coping block | Angelo Risi | 1988-12-20 |
| 4601148 | Module for walls and free standing structure | Angelo Risi | 1986-07-22 |
| D284308 | Module for walls and free standing structures | Angelo Risi | 1986-06-17 |
| D280024 | Stretcher for cribbing | Angelo Risi | 1985-08-06 |
| D279030 | Header for cribbing | Angelo Risi | 1985-05-28 |
| 4490075 | Retaining wall system | Angelo Risi | 1984-12-25 |