Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7441984 | Concrete slab dowel system and method for making and using same | — | 2008-10-28 |
| 7201535 | Concrete slab dowel system and method for making and using same | — | 2007-04-10 |
| 5797231 | Concrete slab dowel system and method for making same | — | 1998-08-25 |
| 5713174 | Concrete slab dowel system and method for making same | — | 1998-02-03 |
| 4979462 | Systems and methods for indicating the location of various structural members in concrete members | Eric M. Hayford | 1990-12-25 |
| 4922680 | Systems and methods for connecting masonry veneer to structural support substrates | Eric M. Hayford | 1990-05-08 |