Average Co-Inventor Count = 1.00
ph-index = 1
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. B.v. Optische Industrie 'de Oude Delft' (1 from 53 patents)
1 patent:
1. 5734359 - Display system intended to be attached to the head or to a helmet, and a