Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5973200 | Process for the preparation of 2-hydroxy-4-(methylthio) butanoic acid or methionine by mercaptan addition | — | 1999-10-26 |
| 5072033 | Process for producing N-phosphonomethylglycine | Donald L. Fields, Jr., Raymond C. Grabiak, Dennis P. Riley | 1991-12-10 |
| 5061820 | Process for producing N-phosphonomethylgylcine | Donald L. Fields, Jr., Raymond C. Grabiak, Dennis P. Riley | 1991-10-29 |
| 4948909 | Process for the preparation of iminodiacetonitrile and iminodiacetic acid | Gary A. Lanser, Paul A. Morrison, Robert B. Weisenfeld | 1990-08-14 |
| 4277420 | Ephedrine and pseudoephedrine precursors | — | 1981-07-07 |