Average Co-Inventor Count = 2.24
ph-index = 9
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. Hoechst Aktiengesellschaft (43 from 6,662 patents)
43 patents:
1. 5154770 - Mix-crystal pigments based on perylenetetracarbimides, process for their
2. 4831140 - Process for the preparation of arylimides of
3. 4797162 - Process for the preparation of perylene-3,4,9,10-tetracarboxylic acid N,N'-
4. 4769460 - Mix-crystal pigments based on perylenetetracarbimides, process for
5. 4758665 - Process for preparing high-hiding gamma-modification of unsubstituted
6. 4758664 - Process for the preparation of linear quinacridones
7. 4742170 - Mix-crystal pigments based on perylenetetracarbimides, process for their
8. 4732618 - Powdered pigments with improved rheological properties, processes for
9. 4714666 - Perylene tetracarboxylic acid imide pigments in an electrophotographic
10. 4709029 - Process for the preparation of perylene-3,4,9,10-tetracarboxylic acid
11. 4705572 - Process for the preparation of pigments of the anthanthrone series
12. 4693753 - Pigments of the quinacridonequinone series, process for their
13. 4689087 - Process for the preparation of an organic pigment on the basis of
14. 4684753 - Process for preparing 1,3,6,8-tetrabromopyrene
15. 4655845 - Process for preparing organic pigments having excellent application