Average Co-Inventor Count = 1.00
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. Rollei-werke Franke & Heidecke (2 from 83 patents)
2 patents:
1. D247760 - Carrying case for a photographic camera
2. 4054167 - Case for photographic cameras