Average Co-Inventor Count = 2.30
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. Ciba Specialty Chemicals Corporation (22 from 1,524 patents)
2. Ciba-geigy Corporation (10 from 6,850 patents)
32 patents:
1. 6767620 - Pigmented porous material
2. 6486332 - Fluorescent pigments
3. 6359122 - Pyrocarbonic acid diesters and the preparation and use thereof
4. 6271401 - Fluorescent anthraquinoid pigments
5. 6261359 - Fluorescent pigments
6. 6222047 - Pyrocarbonic acid diesters and the preparation and use thereof
7. 6180315 - Compositions for making structured color images and application thereof
8. 6127549 - Fluorescent indigo pigments
9. 6040108 - Compositions for making structured color images and application thereof
10. 6013776 - Fluorescent azo pigments
11. 6013777 - Process for the preparation of fluorescent pigments
12. 5886160 - Fluorescent pigments
13. 5879855 - Compositions for making structured color images and application thereof
14. 5874580 - Fluorescent perylene pigments
15. 5840449 - Structured pigment coating and its preparation and use