Ingeborg Stein
13Patents
5h-index
19Co-inventors
59Inventor score
Filing activity: Sep 4, 1991 → Oct 8, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6350904B1 | Method for producing ortho-alkylated benzoic acid derivatives | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5520906A | Triazine derivatives with UV filter properties | Chemistry; Metallurgy | 10 | Expired |
| US5144081A | Dialkoxybenzylidene-camphor derivatives | Chemistry; Metallurgy | 8 | Expired |
| US5501850A | Use of benzimidazole derivatives as light protection filters | Chemistry; Metallurgy | 7 | Expired |
| US5473079A | Process for preparing 2-arylbenzimidazole-5-sulfonic acids | Human Necessities | 5 | Expired |
| US6344566B1 | Method for producing enantiomer-free N-methyl-N-[(1S)-1-phenyl-2-((3S)-3-hydroxypyrolidine-1-yl)ethyl]-2,2-diphenylacetamide | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5399563A | Benzylidenequinuclidinones | Chemistry; Metallurgy | 3 | Expired |
| US5600007A | Use of .alpha.-hydroxyketoalkyl derivatives as light protection filters | Human Necessities | 2 | Expired |
| US5628988A | Ketotricyclo[5.2.1.0]decane derivatives | Chemistry; Metallurgy | 0 | Expired |
| US6573404B2 | Method for producing ortho-alkylated benzoic acid derivatives | Emerging Cross-Sectional Technologies | 0 | Expired |
| US5968482A | .alpha.-hydroxyketoalkyl derivatives as light protection filters | Human Necessities | 0 | Expired |
| US6515143B2 | Method for producing ortho-alkylated benzoic acid derivatives | Emerging Cross-Sectional Technologies | 0 | Expired |
| US6277357A | Ketotricyclo[5.2.1.0]decane derivatives | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.