Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5682635 | Bridge and road construction and method of removing worn deck structure | Larry R. Magnuson | 1997-11-04 |
| 5634312 | Shear bolt connected structural units | Larry R. Magnuson | 1997-06-03 |
| 5537794 | Shear bolt connected structural units | Larry R. Magnuson | 1996-07-23 |
| 5487251 | Apparatus and method for reinforcing cast structures | Larry R. Magnuson | 1996-01-30 |
| 5323641 | Pipe joint seal tester | Larry R. Magnuson | 1994-06-28 |
| 5309691 | Shear connected structural units | Larry R. Magnuson | 1994-05-10 |
| 4689867 | Concrete reinforcement spacer and method of use | — | 1987-09-01 |
| 4598523 | Reinforcement support spacer | — | 1986-07-08 |
| 4583744 | Projectile capturing device and target | Larry R. Magnuson | 1986-04-22 |
| 4489528 | Cage spacer | — | 1984-12-25 |
| 4467995 | Spacer bar and related method for concrete pipe manufacture | — | 1984-08-28 |
| 4466467 | Stackable stirrup mat | — | 1984-08-21 |
| 4452026 | Spacer for wire reinforcement in concrete structures such as pipe | — | 1984-06-05 |
| 4441527 | Concrete pipe reinforcement spacer bar | — | 1984-04-10 |
| 4439972 | Circumferential stirrup panel | — | 1984-04-03 |
| 4365818 | Self-lubricating pipe joint seal with rupturable membrane | — | 1982-12-28 |
| 4358078 | Pipe reinforcing fabric | — | 1982-11-09 |
| 4345626 | Circumferential stirrup panel | — | 1982-08-24 |
| 4296933 | Pipe joint seal | — | 1981-10-27 |
| 4295497 | Variegated stirrup mat | — | 1981-10-20 |
| 4295501 | Spacer bar and related method for concrete pipe manufacture | — | 1981-10-20 |
| 4280310 | Hinged reinforcement assembly and method | — | 1981-07-28 |
| 4270583 | Concrete pipe reinforcement spacer bar process | — | 1981-06-02 |
| 4270776 | Flexible pipe joint for non-interengaging pipe sections | — | 1981-06-02 |
| 4209179 | Pipe joint seal | — | 1980-06-24 |