Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4740362 | Regeneration and use of SO.sub.2 gas scrubber liquid in dual alkali system | Steven J. Harvey, Robert S. Butler, Jerry L. Simpson, James H. Wilhelm | 1988-04-26 |
| 4411875 | Dual alkali process for combustion gas cleaning | Robert S. Butler, Louis P. Kent, Randy S. Cleland, James H. Wilhelm, Richard E. Micko | 1983-10-25 |