Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5754423 | Method and apparatus for preparing a mixture of materials | Werner Brosowski | 1998-05-19 |
| 4466761 | Pneumatic-tube conveying installation for samples of fine material | Herbert Beltrop | 1984-08-21 |
| 4395164 | Pneumatic tube installation for posting samples of material | Herbert Beltrop, Manfred Hilbig | 1983-07-26 |