Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5387486 | Radiation-polymerizable mixture and process for producing a solder resist mask | Michael Emmelius, Walter Herwig, Kurt Erbes | 1995-02-07 |
| 5264324 | Radiation-polymerizable mixture and process for producing a solder resist mask | Michael Emmelius, Walter Herwig, Kurt Erbes | 1993-11-23 |
| 4485166 | Radiation-polymerizable mixture and photopolymerizable copying material prepared therefrom | Walter Herwig, Helga Sikora, Kurt Erbes | 1984-11-27 |
| 4399239 | Elastomeric, ethylenically unsaturated polyurethanes and radiation polymerizable mixtures containing such polyurethanes | Walter Herwig, Kurt Erbes, Helga Sikora | 1983-08-16 |
| 4387139 | Elastomeric, ethylenically unsaturated polyurethanes and radiation polymerizable mixtures containing such polyurethanes | Walter Herwig, Kurt Erbes, Helga Sikora | 1983-06-07 |