Average Co-Inventor Count = 2.40
ph-index = 2
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. E.i. Dupont De Nemours and Company (2 from 16,338 patents)
2 patents:
1. 5725970 - Broad band reflection holograms and a dry process for making same
2. 5182180 - Dry film process for altering the wavelength of response of holograms