Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6119526 | Method and apparatus for detecting tendon failures within prestressed concrete | Gordon H. Reigstad | 2000-09-19 |
| 4928451 | Anchor apparatus for a tendon in prestressed concrete slab | Gordon H. Reigstad, A. Norris Breivik | 1990-05-29 |
| 4799307 | Anchor apparatus for a tendon in prestressed concrete slab | Gordon H. Reigstad, A. Norris Breivik | 1989-01-24 |
| 4574545 | Method for installing or replacing tendons in prestressed concrete slabs | Gordon H. Reigstad, A. Norris Breivik | 1986-03-11 |