Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4731434 | Alkyl aryl ketone/formaldehyde resin having high softening point | — | 1988-03-15 |
| 4614808 | Process for reacting maleic anhydride with vinylbenzenes | Jurgen Olbrich | 1986-09-30 |
| 4542194 | Naphtha-soluble, hydrogenated alkyl aryl ketone/formaldehyde resins and process for their production | Erhard Lange, Werner Otte, Friedrich Heinrich | 1985-09-17 |
| 4204014 | Liquid coating compositions containing little or no solvent | Werner Andrejewski, Wilfried Bartz | 1980-05-20 |