Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5745208 | Electrical cell of the type comprising two plastic parallel support plates, set apart from each other, carrying electrodes on their faces | Joachim Grupp | 1998-04-28 |
| 5742006 | Electric cell of the type comprising two parallel plates or substrates in particular made of plastic material separated from each other by a sealing frame | Joachim Grupp | 1998-04-21 |