Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4987220 | Purification of poly(n-vinylcarbazole) containing impurities | Peter Neumann | 1991-01-22 |
| 4962011 | Photopolymerizable recording materials containing a triazole sensitizer and photoresist layers and lithographic printing plates based thereon | Peter Neumann, Andreas Boettcher, Thomas Bluemel, Friedrich Seitz | 1990-10-09 |
| 4940649 | Photopolymerizable recording materials and photoresist layers and lithographic printing plates based thereon | Peter Neumann, Andreas Boettcher, Thomas Bluemel, Friedrich Seitz, Friedrich-Wilhelm Raulfs | 1990-07-10 |
| 4908448 | 4-Quinazolone compounds | Peter Neumann, Andreas Boettcher, Thomas Bluemel, Friedrich Seitz | 1990-03-13 |
| 4891301 | Photopolymerizable recording materials, photoresist layers and lithographic printing plates based theron, and novel 4-quinazolone compounds | Peter Neumann, Andreas Boettcher, Thomas Bluemel, Friedrich Seitz | 1990-01-02 |
| 4886735 | Photopolymerizable recording materials and photoresist layers and lithographic printing plates based thereon | Andreas Boettcher, Martin Fischer, Thomas Bluemel | 1989-12-12 |
| 4814256 | Optical recording material | Peter Neumann | 1989-03-21 |