Inventor · disambiguated record
Ingeborg Stein
Also filed as: STEIN INGEBORG
13 granted patents·117 citations·filing 1991–2002
91Inventor score
Top patents by PatentIndex Score
13 records- 0180US5520906ATriazine derivatives with UV filter propertiesMERCK PATENT GMBH·Filed 1993·Granted May 28, 1996·21 cites·20 claims
- 0277US6344566B1Method for producing enantiomer-free N-methyl-N-[(1S)-1-phenyl-2-((3S)-3-hydroxypyrolidine-1-yl)ethyl]-2,2-diphenylacetamideMERCK PATENT GMBH·Filed 2001·Granted Feb 5, 2002·14 cites·16 claims
- 0368US6350904B1Method for producing ortho-alkylated benzoic acid derivativesMERCK KGAA·Filed 1999·Granted Feb 26, 2002·17 cites·7 claims
- 0463US5501850AUse of benzimidazole derivatives as light protection filtersMERCK PATENT GMBH·Filed 1993·Granted Mar 26, 1996·28 cites·11 claims
- 0563US5144081ADialkoxybenzylidene-camphor derivativesMERCK PATENT GMBH·Filed 1991·Granted Sep 1, 1992·16 cites·9 claims
- 0655US5473079AProcess for preparing 2-arylbenzimidazole-5-sulfonic acidsMERCK PATENT GMBH·Filed 1993·Granted Dec 5, 1995·13 cites·8 claims
- 0749US6573404B2Method for producing ortho-alkylated benzoic acid derivativesMERCK PATENT GMBH·Filed 2002·Granted Jun 3, 2003·0 cites·3 claims
- 0847US6515143B2Method for producing ortho-alkylated benzoic acid derivativesMERCK KGAA·Filed 2002·Granted Feb 4, 2003·0 cites·3 claims
- 0943US5600007AUse of α-hydroxyketoalkyl derivatives as light protection filtersMERCK GMBH·Filed 1993·Granted Feb 4, 1997·4 cites·8 claims
- 1037US5399563ABenzylidenequinuclidinonesMERCK PATENT GMBH·Filed 1993·Granted Mar 21, 1995·3 cites·13 claims
- 1134US5968482Aα-hydroxyketoalkyl derivatives as light protection filtersMERCK PATENT GMBH·Filed 1996·Granted Oct 19, 1999·1 cites·5 claims
- 1229US6277357B1Ketotricyclo[5.2.1.0]decane derivativesMERCK PATENT GMBH·Filed 1993·Granted Aug 21, 2001·0 cites·11 claims
- 1329US5628988AKetotricyclo[5.2.1.0]decane derivativesMERCK PATENT GMBH·Filed 1996·Granted May 13, 1997·0 cites·7 claims
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