Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4954306 | Method and device for the manufacture of a sheet of polyvinylbutyral | — | 1990-09-04 |
| 4436575 | Device for manufacturing a heating glass plate | Maurice Dran | 1984-03-13 |
| 4395622 | Transparent heating pane | Maurice Dran | 1983-07-26 |