Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8617718 | Mold-resistant gypsum panel paper | Evan V. Rohlf | 2013-12-31 |
| 7175426 | High efficiency refractoryless kettle | Michael L. Bolind, Warner J. Dundas, Michael J. Porter, Christopher R. Nelson | 2007-02-13 |
| 6663979 | Coating for gypsum board face with uniform gloss intensity | Tom Haugeberg, Robert H. Negri | 2003-12-16 |
| 5945198 | Coated wallboard employing unbleached face paper comprising a coating containing soy protein | Thomas M. Haugeberg, Claudia B. Hill, Thomas G. Houman, Robert H. Negri | 1999-08-31 |