Average Co-Inventor Count = 1.33
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. American Optical Corporation (2 from 409 patents)
2 patents:
1. 4232937 - Bright field-dark field illumination system
2. 4060306 - Achromatic aplanatic condenser