Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4271654 | Three-dimensional structures of frame beams and multiple joints | — | 1981-06-09 |
| 4263752 | Fire resistant gate | — | 1981-04-28 |
| 4206267 | Composite structural material | — | 1980-06-03 |
| 4201023 | Three-dimensional structures made of beams and plates | — | 1980-05-06 |
| 4196558 | Fire-resistant concrete and steel structural element | — | 1980-04-08 |