Average Co-Inventor Count = 2.00
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. Other (1 from 832,812 patents)
2. Vari-site, Inc. (1 from 1 patent)
2 patents:
1. 5517260 - Ophthalmic lens having a progressive multifocal zone and method of
2. 3971910 - Apparatus for perforating contact lenses