Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6481171 | Gypsum compositions and related methods | Qiang Yu, Srinivas Veeramasuneni | 2002-11-19 |
| 6475313 | Process for making gypsum board having improved through-penetration strength | Kurt N. Peterson, Gerry L. Heschel, Dick C. Engbrecht | 2002-11-05 |
| 6387172 | Gypsum compositions and related methods | Qiang Yu, Srinivas Veeramasuneni | 2002-05-14 |
| 6342284 | Gypsum-containing product having increased resistance to permanent deformation and method and composition for producing it | Qiang Yu, Steven W. Sucech, Brent E. Groza, Raymond J. Mlinac, Paul J. Henkels | 2002-01-29 |