Inventor · disambiguated record
Leonhard Unverdorben
Also filed as: UNVERDORBEN LEONHARD
15 granted patents·3 pending applications·285 citations·filing 1991–2008
93Inventor score
Top patents by PatentIndex Score
18 records- 0195US6537364B2Process for fine division of organic pigments by precipitationCLARIANT GMBH·Filed 2001·Granted Mar 25, 2003·82 cites·22 claims
- 0291US6548647B2Process for preparing azo colorantsCLARIANT GMBH·Filed 2001·Granted Apr 15, 2003·43 cites·21 claims
- 0390US7309389B2Preparation of azo colorants in microreactors and their use in electrophotographic toners and developers, powder coatings, ink jet inks and electronic mediasCLARIANT FINANCE BVI LTD·Filed 2006·Granted Dec 18, 2007·9 cites·10 claims
- 0488US6469147B2Preparation of azo colorants in microreactorsCLARIANT FINANCE BVI LTD·Filed 2001·Granted Oct 22, 2002·40 cites·17 claims
- 0585US6723138B2Preparation of diketopyrrolopyrrole pigmentsCLARIANT INT LTD·Filed 2003·Granted Apr 20, 2004·27 cites·13 claims
- 0683US6566519B2Preparation of diketopyrrolopyrrole pigmentsCLARIANT INT LTD·Filed 2001·Granted May 20, 2003·22 cites·12 claims
- 0782US7135266B2Preparation of azo colorants in microreactors and their use in electrophotographic toners and developers, powder coatings, ink jet inks and electronic mediasCLARIANT FINANCE BVI LTD·Filed 2002·Granted Nov 14, 2006·16 cites·8 claims
- 0879US6582508B2Process for fine division of organic pigmentsCLARIANT GMBH·Filed 2001·Granted Jun 24, 2003·24 cites·18 claims
- 0965US7892345B2Method for producing transparent Pigment Violet 23CLARIANT FINANCE BVI LTD·Filed 2008·Granted Feb 22, 2011·1 cites·10 claims
- 1062US5152875ASeparation of m- and p-dichlorobenzeneHOECHST AG·Filed 1991·Granted Oct 6, 1992·7 cites·13 claims
- 1159US6436182B1Process for producing highly concentrated pigment presscakesCLARIANT GMBH·Filed 2000·Granted Aug 20, 2002·4 cites·10 claims
- 1259US6358308B2Finishing treatment of pigments in liquid or supercritical CO2CLARIANT GMBH·Filed 2000·Granted Mar 19, 2002·3 cites·8 claims
- 1356US6616859B1Preparation of alcoholic solutions of alkali metal alkoxidesCLARIANT INT LTD·Filed 2001·Granted Sep 9, 2003·2 cites·11 claims
- 1453US5902884AProcess for preparing N-alkylcarbazolesCLARIANT GMBH·Filed 1998·Granted May 11, 1999·5 cites·14 claims
- 1536US2002040662A1Process for preparing liquid pigment preparationsCLARIANT GMBH·Filed 2001·Application pending·0 cites
- 1635US2007182053A1Continuous method for the production of a pigment masterbatchHOELLEIN VOLKER·Filed 2004·Application pending·0 cites
- 1733US6649758B2Preparation of trans-thiazineindigo pigmentsCLARIANT FINANCE BVI LTD·Filed 2001·Granted Nov 18, 2003·0 cites·15 claims
- 1833US2006142588A1Acetoacetylation of alcohols, thiols and amines in a microreactorNICKEL UWE·Filed 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →