Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8221709 | Hardwood lignosulfonates for separating gangue materials from metallic sulfide ores | Jerry D. Gargulak | 2012-07-17 |
| 6238475 | Ammoxidized lignosulfonate cement dispersant | Jerry D. Gargulak, Ashoke K. SenGupta | 2001-05-29 |
| 5663425 | Production of acid soluble humates | William J. Detroit, Stuart E. Lebo, Jr. | 1997-09-02 |
| 4988576 | Wood preservative | Stephen Y. Lin | 1991-01-29 |
| 4891415 | Process for grafting lignin with vinylic monomers using separate streams of initiator and monomer | Stephen Y. Lin | 1990-01-02 |