Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6440225 | Floor treating method and machine | Michael Van Den Burg, Frederik J. Schepers, Rolf Semmler, Pieter Van Der Vlist | 2002-08-27 |
| 5804541 | Floor treating composition comprising a glycine N,N-diacetic acid | — | 1998-09-08 |