Average Co-Inventor Count = 2.73
ph-index = 3
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. Kowa Company Limited (5 from 591 patents)
5 patents:
1. D1003963 - Telescope
2. D816218 - Anterior ocular segment observation device
3. D753309 - Slit lamp
4. D742014 - Pedestal for handheld slit lamp
5. D709199 - Perimeter