Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5945138 | Cam adjustable former for plastic pipe | Larry L. Martin | 1999-08-31 |
| 5582842 | Manifold calibration finger | Larry L. Martin | 1996-12-10 |
| 5513974 | Manifold assembly with atmospheric vent | Larry L. Martin | 1996-05-07 |
| 5513975 | Pipe extrusion die head manifold assembly | Larry L. Martin | 1996-05-07 |
| 5505897 | Method for forming a pipe | Larry L. Martin | 1996-04-09 |
| 5460501 | Pipe production line for the manufacture of plastic pipe | Larry L. Martin | 1995-10-24 |
| 5424922 | Fiber optic apparel and safety gear | — | 1995-06-13 |
| 5163717 | Pipe coupler | — | 1992-11-17 |