Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5228186 | Method of manufacturing electro-fusion fittings | David A. Brettell, Robin B. Carter, David M. A. Kenworthy | 1993-07-20 |
| 5163713 | Electro-fusion fittings | David A. Brettell, Robin B. Carter, David M. A. Kenworthy | 1992-11-17 |