Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5120815 | Tertiary amine-containing polyols prepared in a Mannich condensation reaction using a mixture of alkanolamines | Michael A. P. Gansow, Johan A. Thoen | 1992-06-09 | $10,142,000 |
| 4939182 | Melamine-alkanolamine condensates and polyurethanes prepared therefrom | Johan A. Thoen, Michael A. P. Gansow | 1990-07-03 | $10,346,000 |