Average Co-Inventor Count = 8.47
ph-index = 1
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. Hoya Optical Labs of America, Inc. (2 from 24 patents)
2 patents:
1. 12330385 - Cast lens
2. 12017388 - Lens casting system