Average Co-Inventor Count = 2.00
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. Osram Sylvania Inc. (3 from 1,452 patents)
3 patents:
1. 5309071 - Zinc sulfide electroluminescent phosphor particles and
2. 5273774 - Method of making zinc sulfide electroluminescent phosphor particles
3. 5269966 - Method of making zinc sulfide precursor material for a copper-activated