Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806639 | Process for the preparation of 6-methyl-3,4-dihydro-1,2,3-oxathiazin-4-one 2,2-dioxide and for the purification thereof | Dieter Reuschling, Walter Reimann, Otto E. Schweikert, Karl E. Mack | 1989-02-21 |
| 4804755 | Process for the preparation of 6-methyl-3,4-dihydro-1,2,3-oxathiazin-4-one 2,2-dioxide and for the purification thereof | Dieter Reuschling, Walter Reimann, Otto E. Schweikert, Karl E. Mack, Wolfgang Ebertz | 1989-02-14 |