Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7461487 | Lintel supported masonry wall system with tensioning rods | Richard C. Campbell, Jr. | 2008-12-09 |
| 7454870 | Lintel supported masonry wall system and method | Richard C. Campbell, Jr. | 2008-11-25 |
| 7188453 | Masonry wall supported fence and method | Richard C. Campbell, Jr. | 2007-03-13 |
| 6632048 | Masonry retainer wall system and method | — | 2003-10-14 |
| 6431797 | Masonry retainer wall system and method | — | 2002-08-13 |
| 5794921 | Masonry fence system | — | 1998-08-18 |
| 5220606 | Cryptographic system and method | — | 1993-06-15 |
| 4726567 | Masonry fence system | — | 1988-02-23 |