Inventor · disambiguated record
Johannes E. L. Claassens
Also filed as: CLAASSENS JOHANNES E L
3 granted patents·28 citations·filing 1974–1977
68Inventor score
Technology areasC07C
Files withSTAMICARBON3
Top patents by PatentIndex Score
3 records- 0180US3932511APreparation of cyclohexane-1,3-dione and of alkyl-substituted derivatives thereofSTAMICARBON·Filed 1974·Granted Jan 13, 1976·15 cites·10 claims
- 0273US3950438APreparation of resorcinol and alkyl-substituted derivatives thereofSTAMICARBON·Filed 1974·Granted Apr 13, 1976·11 cites·11 claims
- 0337US4291170APreparation of delta-keto-estersSTAMICARBON·Filed 1977·Granted Sep 22, 1981·2 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →