Inventor · disambiguated record
Ernst Hartwig
Also filed as: HARTWIG ERNST
4 granted patents·22 citations·filing 1974–1982
72Inventor score
Files withBASF AG4
Top patents by PatentIndex Score
4 records- 0170US4042605AProcess for the production of 1,4-diaminoanthraquinone-2,3-dinitrileBASF AG·Filed 1976·Granted Aug 16, 1977·8 cites·17 claims
- 0263US3936477ABlue anthraquinoid disperse dyes, their production and useBASF AG·Filed 1974·Granted Feb 3, 1976·5 cites·5 claims
- 0356US4442287AAnthraquinone dyesBASF AG·Filed 1982·Granted Apr 10, 1984·8 cites·2 claims
- 0439US4181668AAnthraquinone dyesBASF AG·Filed 1978·Granted Jan 1, 1980·1 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when Ernst Hartwig files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →