Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4690692 | Synthetic resin binders and their use for the manufacture of abrasives | Wolfgang Hesse, Richard Settelmeyer | 1987-09-01 |
| 4298356 | Process for the manufacture of abrasives | Richard Sattelmeyer, Wolfgang Hesse | 1981-11-03 |
| 4251408 | Synthetic resin binders and their use for the manufacture of abrasives | Wolfgang Hesse, Richard Sattelmeyer | 1981-02-17 |