Falkehag; Sten I.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Falkehag; Sten I..The latest application filed is for "cross-linked lignin gels".
- Falkehag; Sten I. - Mt. Pleasant SC
- Falkehag; Sten I. - Mount Pleasant SC
| Patent | Date |
|---|---|
| Cross-linked lignin gels Grant 4,244,728 - DelliColli , et al. January 13, 1 | 1981-01-13 |
| Modified sulfonated resin surfactants Grant 3,933,424 - Falkehag , et al. January 20, 1 | 1976-01-20 |
| Composites of lignin and biologically active materials Grant 3,929,453 - Dimitri , et al. December 30, 1 | 1975-12-30 |
| Modified lignin surfactants Grant 3,865,803 - Falkehag February 11, 1 | 1975-02-11 |
| Dyestuff Compositions Containing Lignin Surfactants Carboxy Substituted Grant 3,841,887 - Falkehag , et al. October 15, 1 | 1974-10-15 |
| Process For Producing Cationic Lignin Amines Grant 3,718,639 - Falkehag , et al. February 27, 1 | 1973-02-27 |
| Hexamethylene Tetramine Derivatives Of Alkali Lignins Grant 3,697,497 - Falkehag October 10, 1 | 1972-10-10 |
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