Average Co-Inventor Count = 3.05
ph-index = 8
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Basf Aktiengesellschaft (38 from 10,754 patents)
2. Badische Anilin- & Soda-fabrik Aktiengesellschaft (2 from 88 patents)
40 patents:
1. 5206375 - Thiophene derivatives
2. 5145952 - Thiopheneazo dyes with a coupling component based on M-phenylenediamine
3. 5082973 - Process for the preparation of bis(4-chlorophenyl) sulfone
4. 5072034 - Preparation of 4-alkoxy-2-hydroxybenzophenone-5-sulfonic acids
5. 5006659 - Preparation of 7-chloroquinoline-8-carboxylic acids
6. 4983773 - Preparation of bis-(4-chlorophenyl) sulfone
7. 4897469 - Aniline series azo reactive dyes ortho- or para-substituted by vinyl
8. 4873372 - Isolation of 4,4'-dichlorodiphenyl sulfone
9. 4843153 - Azo dyes containing thienothiophene radicals as radicals of the diazo
10. 4785116 - Aminoisothiazole compounds
11. 4677199 - Reactive dyes containing substituted 4-fluoropyridaz-6-one radicals
12. 4533612 - Electrophotographic recording materials containing special charge
13. 4490541 - 5(3)-Aminopyrazolo-3,4(4,5)-dicarboximide azo dyestuff intermediates
14. 4483795 - Substituted phenyl disazo dyes containing a 2-amino-substituted thiazole
15. 4481272 - Layered electrophotographic recording medium comprising heterocyclic