Average Co-Inventor Count = 4.00
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. Olympus Optical Company, Ltd. (2 from 5,729 patents)
2 patents:
1. 4778253 - Device for retaining an optical part
2. 4725126 - Lens retaining device