Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5322009 | Apparatus for metered infeeding, compacting as required, and pumping to elevated pressure tough long-stranded material of little fluidity, such as raw feathers | — | 1994-06-21 |
| 4497733 | Apparatus for hydrolyzing keratinaceous material | — | 1985-02-05 |
| 4378311 | Method for hydrolyzing keratinaceous material | — | 1983-03-29 |
| 4286884 | Apparatus for hydrolyzing keratinaceous material | — | 1981-09-01 |
| 4269865 | Process for the production of a food product from feathers | — | 1981-05-26 |
| 4231926 | Method and apparatus for hydrolyzing keratinaceous material | — | 1980-11-04 |