Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6422734 | Static foam generating apparatus and method | Gopalakrishnan Sethuraman, Ronald S. Finkelstein, Robert C. Mitchell, W. Roy Burke | 2002-07-23 |
| 6221151 | Gypsum set accelerator and method of making the same | Frank H. Campbell, Robert Piasecki, Edward A. Burkard | 2001-04-24 |
| 6083465 | Method and apparatus for continuously calcining gypsum | Robert Piasecki | 2000-07-04 |
| 5879825 | Gypsum wallboard and method of making same | W. Roy Burke | 1999-03-09 |