Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6458418 | Method of making multilayer sheets for firestops or mounting mats | Roger L. Langer, Gary F. Howorth | 2002-10-01 |
| 6365267 | Multilayer intumescent sheet and pollution control device | Roger L. Langer, Gary F. Howorth | 2002-04-02 |