Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4192760 | Cooling agent mixture containing ethylene glycol monoacetate, ethylene glycol diacetate, and glycol monomethyl ether for low-temperature freezing processes | Hans-Joachim Maulhardt | 1980-03-11 |