Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6231784 | Water insoluble composition of an aldoxime extractant and an equilibrium modifier | Michael J. Virnig, Phillip L. Mattison, J. Murdoch MacKenzie | 2001-05-15 |
| 6077970 | Carboxylic acid esters of 2-hydroxy-5-isoalkyl-beta-methylstyrene | — | 2000-06-20 |
| 5993757 | Reoximation of metal extraction circuit organics | Michael J. Virnig, Mary I. Casey | 1999-11-30 |
| 5877355 | 2-hydroxy-5-alkyl-beta-methylstyrene and process of preparing hydroxyarylaldehydes therefrom | — | 1999-03-02 |
| 5808130 | Esterification of phenols | — | 1998-09-15 |
| 5488161 | Oximation process | — | 1996-01-30 |
| 5457236 | Process for the production of beta-diketone | Mary I. Casey | 1995-10-10 |
| 5349088 | Oximation process | — | 1994-09-20 |
| 5302748 | Esterification process | — | 1994-04-12 |
| 5300689 | Oximation process | Mary I. Casey | 1994-04-05 |
| 5081155 | Hydroxy aromatic ketones | Wilson L. Lin | 1992-01-14 |
| 4936999 | Process for recovery of amino acids from aqueous mixtures | Phillip L. Mattison, Ronald P. Wirth, Michael J. Virnig | 1990-06-26 |
| 4886889 | Process for recovery of an amino acid from aqueous mixtures thereof | Phillip L. Mattison, Ronald P. Wirth, Michael J. Virnig | 1989-12-12 |
| 4599457 | Process of preparing hydroxyarylaldehydes | Phillip L. Mattison | 1986-07-08 |
| 4255345 | Steroid production | — | 1981-03-10 |
| 4252730 | Hydrolysis of steroidal carbamates | — | 1981-02-24 |
| 4252731 | Preparation of steroidal carbamates | — | 1981-02-24 |
| 4252732 | Processing of steroids containing amino functionality | Ernest B. Spitzner, James P. Clark | 1981-02-24 |
| 4251450 | Nitrogen transhalogenation process | — | 1981-02-17 |
| 4201716 | Preparation of 22-steroid acetals | — | 1980-05-06 |