Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8540897 | Water quench for gasifier | John Abughazaleh, Peter V. Smith | 2013-09-24 |
| 7892511 | Pseudoisothermal ammonia process | — | 2011-02-22 |
| 7513919 | Pseudoisothermal ammonia process | Daniel Joseph Barnett | 2009-04-07 |
| 7435401 | Pseudoisothermal ammonia process | Daniel Joseph Barnett | 2008-10-14 |
| 5744009 | Method and apparatus for recovering condensables in vapor from a urea vacuum evaporator | Vishnu D. Singh, Thomas Czuppon | 1998-04-28 |
| 5523483 | Integrated urea/ammonia process | Vishnu D. Singh, Meghji N. Shah | 1996-06-04 |