Average Co-Inventor Count = 3.46
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. Tomei Sangyo Co., Ltd. (3 from 5 patents)
3 patents:
1. 5279674 - Method of treating contact lens
2. 5181604 - Contact lens holder and treating device
3. 5167323 - Lens treating device for treating contact lens