Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4746696 | Polyvinylpyrrolidone shaped adhesive containing aminocarboxylic acid or corresponding lactam | Gerhard Gierenz | 1988-05-24 |
| 4696836 | Hand stamp method for applying adhesives | Wolfgang Dierichs, Gerhard Gierenz | 1987-09-29 |
| 4639475 | Adhesive stick and a process for its production | Wolfgang Dierichs, Gerhard Gierenz | 1987-01-27 |