Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8518167 | Polish product free of volatile components | Robert Johannes Hijman, André Leonard Vermeulen, Shengyu Jin | 2013-08-27 |
| 7441975 | Device for treating a surface, in particular a leather surface, such as that of leather shoes | Johannes Antonius G. W. Zigmans, Peter Alphonse Huster, Petrus Enricus Aloysius Nicolaas Kuhn | 2008-10-28 |
| 4450594 | Tank dispenser with end-of-life indicator | — | 1984-05-29 |