Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4632998 | Method of mixing a finely divided liquid with a gas to produce a mixture with the liquid in excess of its explosive limit | Wolfgang Siebert | 1986-12-30 |
| 4592412 | Method of periodically heating a product separator of a plant for producing phthalic anhydride or maleic anhydride | Volker Franz | 1986-06-03 |