Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5624690 | Controlled release of metered quantities of finely divided solids with a venturi nozzle and regulated control | Josef Boldis, Volker I. Glasel, Ekkehard Flaischlen | 1997-04-29 |