Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857094 | Method for the manufacture of a toughened and/or bent pane with solar control coating containing platinum or the like | Rolf Groth | 1989-08-15 |
| 4816054 | Process for the manufacture of a toughened and/or bent sheet of glass, in particular solar control glass sheet | — | 1989-03-28 |