Inventor · disambiguated record

Ernst Klappert

Also filed as: KLAPPERT ERNST

2 granted patents·11 citations·filing 1976–1977

51Inventor score

Technology areasC09B

Files withHOECHST AG2

Top patents by PatentIndex Score

2 records

0179US4370269AMonoazo pigment derived from acetoacetylamino benzimidazoloneHOECHST AG·Filed 1976·Granted Jan 25, 1983·11 cites·1 claims
0225US4287122AMonoazo compounds from 1-aminobenzene-2-carboxylic acid derivatives and their use as colorantsHOECHST AG·Filed 1977·Granted Sep 1, 1981·0 cites·3 claims

Join the waitlist — get patent alerts

Get an alert when Ernst Klappert 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 →