Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4901939 | Reel | R. E. Shrum | 1990-02-20 |
| 4765711 | Underwater fiber optic cable weighted with metal particles | — | 1988-08-23 |
| 4724929 | Elevator compensating cable | John D. Coleman | 1988-02-16 |
| 4716989 | Elevator compensating cable | John D. Coleman | 1988-01-05 |
| 4667896 | Three flange cable spool | Rodney R. Frey | 1987-05-26 |
| 4664229 | Motion dampening compensating elevator cable | — | 1987-05-12 |
| 4445593 | Flat type feeder cable | John D. Coleman, Heinrich A. Kraft | 1984-05-01 |