Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5294424 | Process for preparing high absorptivity granular sodium phosphates | Louis A. Highfill | 1994-03-15 |
| 4948516 | Method of disposing of wastes containing heavy metal compounds | David O. Fisher | 1990-08-14 |
| 4731465 | Process for producing nitrilotriacetonitrile | Chung Y. Shen | 1988-03-15 |
| 4704465 | Process for preparing ethylenediaminetetraacetonitrile | Sum-Muk Lee | 1987-11-03 |
| 4485049 | Two-stage crystallization of nitrilotriacetonitrile from a hot solution | Chung Y. Shen, Dat S. Trieu | 1984-11-27 |
| 4228300 | Polycarboxylate ethers | — | 1980-10-14 |
| 4223162 | Ether carboxylates containing three carboxylate groups | Marvin M. Crutchfield, Charles J. Upton | 1980-09-16 |
| 4182905 | Chemical compounds | — | 1980-01-08 |
| 4182908 | Methods for making ketal polycarboxylate compounds | — | 1980-01-08 |
| 4182684 | Machine dishwashing composition | — | 1980-01-08 |