Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850831 | Interengaging rotors having internal axes and specific sidewall construction | — | 1989-07-25 |
| 4772191 | Internally axed single-rotation machine with sealing gap arrangement | — | 1988-09-20 |
| 4722126 | Method and apparatus for the manufacture of a single-rotation machine having an internal axis | — | 1988-02-02 |