Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5877108 | Performance of used molybdenum based catalysts by the addition of ammonium dimolybdate | Dev D. Suresh, Christos Paparizos, Tama Lee Drenski, Maria S. Friedrich | 1999-03-02 |
| 5840648 | Catalyst for the manufacture of acrylonitrile and hydrogen cyanide | Dev D. Suresh, Christos Paparizos, Maria S. Friedrich, Tama Lee Drenski | 1998-11-24 |
| 5821192 | Method of improving the attrition resistance of V/SB oxide based catalyst | Maria S. Friedrich, Dev D. Suresh, Frank John Kocjancic | 1998-10-13 |
| 5770757 | Ammoxidation catalysts containing germanium to produce high yields of acrylonitrile | Tama Lee Drenski, Maria S. Friedrich, Christos Paparizos, Dev D. Suresh | 1998-06-23 |
| 5688739 | Ammoxidation catalysts containing germanium to produce high yields of acrylonitrile | Tama Lee Drenski, Maria S. Friedrich, Christos Paparizos, Dev D. Suresh | 1997-11-18 |
| 5457223 | Process for elimination of waste material during manufacture of acrylonitrile | Wilfrid G. Shaw, Kenneth L. Bigler, Louis R. Trott, Steve J. Miko, Vincent G. Reiling +8 more | 1995-10-10 |
| 5288473 | Process for elimination of waste material during manufacture of acrylonitrile | Wilfrid G. Shaw, Kenneth L. Bigler, Louis R. Trott, Steve J. Miko, Vincent G. Reiling +7 more | 1994-02-22 |
| 5258543 | Method for ammoxidation of olefins | Dev D. Suresh, Maria S. Friedrich, Christos Paparizos | 1993-11-02 |
| 5212137 | Catalyst for the manufacture of acrylonitrile and methacrylonitrile | Dev D. Suresh, Maria S. Friedrich | 1993-05-18 |
| 5204079 | HCN by catalytic ammoxidation of crude acetonitrile | Dev D. Suresh, Mark C. Cesa, Tai-Cheng Yang, Robert K. Grasselli, Mark R. Bruce +2 more | 1993-04-20 |
| 5175334 | Process for the manufacture of acrylonitrile and methacrylonitrile | Dev D. Suresh, Maria S. Friedrich | 1992-12-29 |
| 5093299 | Catalyst for process for the manufacture of acrylonitrile and methacrylonitrile | Dev D. Suresh, Maria S. Friedrich | 1992-03-03 |
| 4978764 | Method for ammoxidation of paraffins | Maria S. Friedrich, Dev D. Suresh | 1990-12-18 |
| 4855275 | Catalyst performance improvement via separate boron addition | Dev D. Suresh, James F. Brazdil, Robert K. Grasselli | 1989-08-08 |
| 4659689 | Method of preparation of high active phase (AMM)oxidation catalysts with improved performance and attrition resistance | Dev D. Suresh, Robert J. Zagata, Maria S. Friedrich | 1987-04-21 |