Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5216862 | Concrete dowel placement sleeves | Ronald D. Shaw, Lee A. Shaw | 1993-06-08 |
| 5212919 | Nelson stud screed post assembly | Lee A. Shaw, Ronald D. Shaw, Thomas W. Enis, Scott Shaw | 1993-05-25 |
| 4748788 | Surface seeded exposed aggregate concrete and method of producing same | Ronald D. Shaw, Lee A. Shaw | 1988-06-07 |