Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4952460 | Process for the production of composite safety glass | Rolf Beckmann | 1990-08-28 |
| 4361625 | Plasticizer-containing films of partially acetalized polyvinyl alcohols | Rolf Beckmann | 1982-11-30 |
| 4303739 | Process of the production of composite safety glass | Rolf Beckmann | 1981-12-01 |
| 4277538 | Method of manufacturing laminated safety glass | Rolf Beckmann | 1981-07-07 |