Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864066 | Preparation of alkanediols from alkynols | Herbert Toussaint, Juergen Schossig | 1989-09-05 |
| 4851578 | Preparation of trialkylamines | Roman Fischer | 1989-07-25 |
| 4851580 | Preparation of trialkylamines | Roman Fischer, Gerhard Jeschek, Willibald Schoenleben | 1989-07-25 |
| 4827035 | Preparation of amines | Hartmut Axel | 1989-05-02 |
| 4803299 | Preparation of polytetramethylene ether glycol diesters having a low color number | — | 1989-02-07 |
| 4798554 | Balloon holder | David C. Nelson, Michael J. Fresh | 1989-01-17 |
| 4798851 | Process for the preparation of elastic, noncellular or cellular polyurethane- or polyurethane-polyurea molded articles | Frank Werner, Joachim Streu | 1989-01-17 |