Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5246739 | Method for the treatment of wood with metal-lignin salts | — | 1993-09-21 |
| 4988576 | Wood preservative | Lori L. Bushar | 1991-01-29 |
| 4952415 | Carboxylic polymer animal feed binder | Thomas S. Winowiski | 1990-08-28 |
| 4891415 | Process for grafting lignin with vinylic monomers using separate streams of initiator and monomer | Lori L. Bushar | 1990-01-02 |
| 4871825 | Binder composed of a graft copolymer of high molecular weight lignin material and an acrylic monomer | — | 1989-10-03 |
| 4824588 | Deicing agent | — | 1989-04-25 |
| 4728728 | Sulfonated ligno-aminodicarboxylates and process for making same | Lin Hin Hoo | 1988-03-01 |
| 4562236 | Reaction product of lignosulfonate and unsaturated fatty amine | — | 1985-12-31 |
| 4492586 | Dyestuffs and dyeing method using lignin adduct dispersant | — | 1985-01-08 |
| 4444562 | Lignin-based dispersants especially adapted for thermosol dyeing | — | 1984-04-24 |
| 4359321 | Dye compositions and method of using same | — | 1982-11-16 |
| 4332589 | Method for polymerization of lignosulfonates | — | 1982-06-01 |
| 4308203 | Sulfonated lignin dispersants and dyestuffs | — | 1981-12-29 |
| 4221708 | Method for polymerization of lignin | — | 1980-09-09 |
| 4184845 | Process for reduction of lignin color | — | 1980-01-22 |