Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5891345 | Treatment process for wastewater streams | Gary V. Goeden, David R. Woodbury | 1999-04-06 |
| 5651833 | Waste concentration and destruction process | Gary V. Goeden, David R. Woodbury | 1997-07-29 |
| 5635076 | Treatment process for acrylonitrile plant wastewater streams | Gary V. Goeden, David R. Woodbury | 1997-06-03 |
| 5562834 | Waste concentration and destruction process | Gary V. Goeden, David R. Woodbury | 1996-10-08 |
| 5474960 | Process for reactivating a fluid bed catalyst in a reactor dipley | Louis R. Trott, David R. Woodbury | 1995-12-12 |
| 5124291 | Method for deagglomerating and re-exposing catalyst in a fluid bed reactor | Louis R. Trott, Timothy Robert McDonel | 1992-06-23 |
| 4647673 | Maleic anhydride process | Dennis E. Dria, Ernest C. Milberger, Patricia R. Blum, Mark L. Nicholas | 1987-03-03 |
| 4563439 | Preparation of mixed vanadium phosphorus oxide catalysts | Dennis E. Dria | 1986-01-07 |
| 4525471 | Attrition resistant microspheroidal fluid bed catalysts containing the mixed oxides of vanadium and phosphorus | Dennis E. Dria, Ernest C. Milberger, Patricia R. Blum, Mark L. Nicholas | 1985-06-25 |
| 4507212 | Nitrile compounds as oil field biocides | Dennis E. Dria, Myra A. Dria, Rodger W. McKain | 1985-03-26 |
| 4465846 | Preparation of maleic anhydride | Dennis E. Dria | 1984-08-14 |
| 4455434 | Process for the preparation of maleic anhydride | Dennis E. Dria | 1984-06-19 |
| 4448893 | Preparation of improved mixed vanadium phosphorus oxide catalyst and their use in oxidation processes | Dennis E. Dria, Andrew M. Weber | 1984-05-15 |
| 4429137 | Preparation of maleic anhydride | Patricia R. Blum, Ernest C. Milberger, Dennis E. Dria | 1984-01-31 |
| 4427792 | Iron-phosphorus mixed oxide catalysts and process for their preparation | S. Erik Pedersen, James L. Callahan | 1984-01-24 |
| 4426342 | Process for tableting fine powders | Dennis E. Dria | 1984-01-17 |
| 4400306 | Process for the preparation of fluidizable catalysts | Dennis E. Dria | 1983-08-23 |
| 4396536 | Preparation of vanadium phosphorous catalysts using olefinic oxygenated media | Dennis E. Dria | 1983-08-02 |
| 4396535 | Preparation of mixed vanadium phosphorus oxide catalysts and their use in oxidative processes | Dennis E. Dria | 1983-08-02 |
| 4365069 | Use of improved mixed vanadium phosphorus oxide catalyst in oxidation processes | Dennis E. Dria, Andrew M. Weber | 1982-12-21 |
| 4361501 | Preparation of vanadium phosphorus catalysts using a mixed phosphorus source | Patricia R. Blum, Ernest C. Milberger, Dennis E. Dria | 1982-11-30 |
| 4359407 | Catalyst compositions especially useful for preparation of unsaturated acids | Serge R. Dolhyj, Ernest C. Milberger | 1982-11-16 |
| 4350639 | Preparation of maleic anhydride | Ernest C. Milberger, Dennis E. Dria | 1982-09-21 |
| 4350611 | Preparation of vanadium phosphorus catalysts using olefinic halogenated organic reaction media | Michael F. Lemanski, Ernest C. Milberger | 1982-09-21 |
| 4333853 | Mixed vanadium phosphorus oxide catalysts and preparation thereof | Ernest C. Milberger, Dennis E. Dria | 1982-06-08 |