Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5155164 | Products of the condensation of phenolmonosulfonic acids, dihydroxydiphenyl sulfones, urea and formaldehyde | Hermann Graf, Klaus Lorenz, Ortwin Schaffer, Karl Stork | 1992-10-13 |
| 4614613 | Preparation of .beta.-N-aziridinopropionates | Rolf Fikentscher, Siegfried Schneider, Erhard Klahr, Friedrich Reinert, Gunter Eckert | 1986-09-30 |