Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5660209 | Porous pipe and process for producing same | Richard A. Hutchinson | 1997-08-26 |
| 5462092 | Porous pipe and process for producing same | Richard A. Hutchinson | 1995-10-31 |
| 5334336 | Method of forming porous pipe using a blowing agent carrier component | Richard A. Hutchinson | 1994-08-02 |