Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5639921 | Method of producing difluoromethyl ethers and esters and ethers and esters produced thereby | Dieter Naumann, Wieland Tyrra | 1997-06-17 |
| 5455371 | Method of producing difluoromethyl ethers and esters and ethers and esters produced thereby | Dieter Naumann, Wieland Tyrra | 1995-10-03 |