Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886610 | Lubricant compositions, novel glucamine derivatives and complex compounds containing same | Hermann O. Wirth | 1989-12-12 |
| 4863621 | Sulfur-and nitrogen-containing lubricant additives | Hermann O. Wirth | 1989-09-05 |
| 4835310 | Reaction products of bisglycidyl thioethers | Hermann O. Wirth, Rainer Schneider | 1989-05-30 |
| 4830770 | Hydraulic fluid compositions, novel glucamine derivatives and complex compounds containing same | Hermann O. Wirth | 1989-05-16 |
| 4808755 | Lubricant compositions, novel glucamine derivatives and complex compounds containing same | Hermann O. Wirth | 1989-02-28 |