Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8536077 | Flooring underlayment membrane | David Gladden, Song-Ping Dai | 2013-09-17 |
| 8389103 | Roofing material | Matti Kiik, Michael L. Bryson, Younger Ahluwalia, Margie A. Beerer | 2013-03-05 |
| 6673432 | Water vapor barrier structural article | Matti Kiik, Younger Ahluwalia | 2004-01-06 |
| 4245689 | Dimensionally stable cellulosic backing web | Henry P. Grard, Edmond M. Mergelsberg | 1981-01-20 |