Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7172403 | Apparatus for preparing a gypsum wallboard core | — | 2007-02-06 |
| 6953626 | Gypsum layered panels containing styrene butadiene latex additive | Gopalakrishnan Sethuraman, Amba Ayambem, Richard J. Romanek | 2005-10-11 |
| 6902821 | Methods of preparing gypsum wallboards containing styrene butadiene latex additive | Gopalakrishnan Sethuraman, Amba Ayambem, Richard J. Romanek | 2005-06-07 |
| 6525116 | Gypsum composition with ionic styrene butadiene latex additive | Gopalakrishnan Sethuraman, Amba Ayambem | 2003-02-25 |
| 6422734 | Static foam generating apparatus and method | Gopalakrishnan Sethuraman, Ronald S. Finkelstein, Larry W. Kingston, Robert C. Mitchell | 2002-07-23 |
| 5879825 | Gypsum wallboard and method of making same | Larry W. Kingston | 1999-03-09 |
| 5298173 | Method of neutralizing acidified surface water | — | 1994-03-29 |
| 5158835 | Acid rain neutralizing block, method of making such blocks and method of neutralizing acidified surface water | — | 1992-10-27 |