Assignee
HOECHST CELANESE
US·6 granted patents·51 citations·filing 1987–1995
Top patents by PatentIndex Score
6 records- 0185US4868256AProcess for the production of 3-mono or 3,5-disubstituted-4-acetoxystyrene its polymerization, and hydrolysisHOECHST CELANESE·Filed 1988·Granted Sep 19, 1989·22 cites·17 claims
- 0254US4847327ASurface or electrically active copolymers of poly(4-substituted styrene/N-substituted maleimide)HOECHST CELANESE·Filed 1988·Granted Jul 11, 1989·10 cites·18 claims
- 0344US5338884AMethod for the preparation of arylalkanolamineacylatesHOECHST CELANESE·Filed 1992·Granted Aug 16, 1994·2 cites·19 claims
- 0440US5602267AOrganometallic catalysts for epoxidizing prochiral olefins and a new class of amid-salicylidene ligandsHOECHST CELANESE·Filed 1995·Granted Feb 11, 1997·7 cites·40 claims
- 0540US4874240ACharacterization of semiconductor resist material during processingHOECHST CELANESE·Filed 1988·Granted Oct 17, 1989·6 cites·10 claims
- 0626US4880866AThermoplastic polyester compositions containing certain low molecular weight diepoxide resins and having improved impact behaviorHOECHST CELANESE·Filed 1987·Granted Nov 14, 1989·4 cites·10 claims
Join the waitlist — get patent alerts
Get an alert when HOECHST CELANESE files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →