Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4515723 | Quaternary N-alkyl-N,N',N'-polyoxyalkyl-.alpha.,.omega.-diamino-alkylene fatty acid esters, and their use | Siegfried Billenstein, Adolf May, Hans-Walter Bucking | 1985-05-07 |