Issued Patents 1989
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889938 | 1,4-Oxathianones and 1,4-oxathiepanones | Ulrich Kristen | 1989-12-26 |
| 4886610 | Lubricant compositions, novel glucamine derivatives and complex compounds containing same | Hans-Helmut Friedrich | 1989-12-12 |
| 4876029 | Substituted and unsubstituted ring-bridged para-oligophenylene UV laser dyes | Hans Gusten, Hans-Joachim Ache, Monika Rinke | 1989-10-24 |
| 4863621 | Sulfur-and nitrogen-containing lubricant additives | Hans-Helmut Friedrich | 1989-09-05 |
| 4859354 | Nitrogen-containing additives for non-aqueous functional fluids | Emyr Phillips, Robert M. O'Neil | 1989-08-22 |
| 4847457 | Methylphosphonic acid amine salt lubricant additives | Klaus Muller | 1989-07-11 |
| 4835310 | Reaction products of bisglycidyl thioethers | Rainer Schneider, Hans-Helmut Friedrich | 1989-05-30 |
| 4830770 | Hydraulic fluid compositions, novel glucamine derivatives and complex compounds containing same | Hans-Helmut Friedrich | 1989-05-16 |
| 4808755 | Lubricant compositions, novel glucamine derivatives and complex compounds containing same | Hans-Helmut Friedrich | 1989-02-28 |