Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6399814 | Process for the preparation of 2-carboxyalkyl(aryl)phosphinic acid and corresponding anhydride(s) | David J. Weinkauff | 2002-06-04 |
| 6320071 | Production of 2-carboxyalkyl (phenyl)phosphinic acid | David J. Weinkauff | 2001-11-20 |
| 5844028 | Cyclic phosphorus containing flame retardant compounds | — | 1998-12-01 |
| 5276066 | Halogen-free cyclic phosphorus-containing flame retardant compounds | Carol R. Weiss | 1994-01-04 |
| 5117046 | Preparation of alkylidene diesters | Robert G. Schultz | 1992-05-26 |
| 5003104 | Carbonylation process and catalyst | Arnold Hershman, Walter R. Knox, Robert G. Schultz, James F. Roth | 1991-03-26 |
| 4810821 | Preparation of alkylidene diesters | Robert G. Schultz | 1989-03-07 |
| 4792620 | Carbonylation catalysts | Arnold Hershman, Walter R. Knox, James F. Roth | 1988-12-20 |
| 4733006 | Carbonylation process with an alkali metal acetate as catalyst stabilizer | Thomas C. Singleton | 1988-03-22 |
| 4690912 | Rhodium-containing carbonylation catalysts with halogen-containing promoter | Arnold Hershman, Walter R. Knox, James F. Roth | 1987-09-01 |
| 4433166 | Process for stabilizing carbonylation catalyst in soluble form | Thomas C. Singleton | 1984-02-21 |