Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5309947 | Apparatus for lining an inside wall of a sewer pipe | — | 1994-05-10 |
| 4992105 | Method and apparatus for the hydrolytic separation of cellulose | Johannes Werner | 1991-02-12 |
| 4919763 | Apparatus for converting sewage sludge filter cake by pyrolysis | — | 1990-04-24 |
| 4708746 | Method the hydrolytic splitting of acid treated comminuted crude cellulose with steam | — | 1987-11-24 |
| 4468256 | Process for the hydrolysis of cellulose from vegetable raw materials to glucose and apparatus for performing the process | — | 1984-08-28 |
| 4361100 | Procedure and installation for the incinerating of sludge | — | 1982-11-30 |