Average Co-Inventor Count = 2.18
ph-index = 3
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. Eastman-kodak Company (3 from 21,595 patents)
4 patents:
1. 4247459 - Azo dye derivatives of 2,3-naphthalenediols
2. 4234672 - Shifted photographic dyes and compositions, elements and processes
3. T999003 - Shifted photographic dyes and compositions, elements and processes
4. 4145299 - Electrographic liquid developers containing azo dye marking particles