Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4330334 | Modifying mortars of inorganic binding agents with alkylated sulphonated phenol-formaldehyde condensation product | Kurt Schaupp, Gunther Boehmke | 1982-05-18 |
| 4325890 | Phenol-formaldehyde condensates, their preparation and their use as dispersing agents, liquefaction agents and tanning agents | Vaclav Kaspar, Karlhans Jakobs, Kurt Schaupp | 1982-04-20 |