Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880473 | Process for the production of fermentable sugars from biomass | Jan Piskorz | 1989-11-14 |
| 4824647 | Method of removing acid gas pollutants from flue gases | — | 1989-04-25 |
| 4822935 | Hydrogasification of biomass to produce high yields of methane | — | 1989-04-18 |