Average Co-Inventor Count = 1.33
ph-index = 5
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. Vivitar Corporation (7 from 60 patents)
2. Vivitar Corportion (1 from 1 patent)
8 patents:
1. D360217 - Photographic camera
2. D331251 - Photographic camera
3. D330039 - Photographic camera
4. D329863 - Photographic camera
5. D275573 - Slide printer
6. D271306 - Combined electronic flash unit and adapter module
7. D271210 - Electronic flash adapter
8. 4405223 - Pistol grip