Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6470635 | Coupling assembly with intumescent material | — | 2002-10-29 |
| 6405502 | Firestop assembly comprising intumescent material within a metal extension mounted on the inner surface of a plastic coupling | — | 2002-06-18 |
| 6336297 | Self sealing firestop coupling assembly | — | 2002-01-08 |