Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8524184 | Sulfur recovery plant tail gas treatment process | David Perry, Robert B. Fedich | 2013-09-03 |
| 7662215 | Methods for removing sulfur-containing compounds | Christopher W. Sparling, P. Scott Northrop, Johnny Johnson, III, Barry M. Friedman | 2010-02-16 |
| 5514351 | Desulfurizing tailgas from sulfur recovery unit | John S. Buchanan, David L. Stern | 1996-05-07 |
| 5292492 | Recovering sulfur from ammonia acid gas stream | J. Scott Buchanan | 1994-03-08 |
| 4292286 | Process for selective removal of cyclic urea from hindered amine gas treating solution | Geoffrey R. Say, James R. Hays, Sr. | 1981-09-29 |
| 4282194 | Process for converting cyclic urea to corresponding diamine in a gas treating system | Geoffrey R. Say, James R. Hays, Sr., Barbara A. Hacker | 1981-08-04 |