Average Co-Inventor Count = 2.00
ph-index = 4
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. Crews, Inc. (3 from 7 patents)
4 patents:
1. D418533 - Safety glasses
2. 5657106 - Safety goggle assembly including corrective lenses
3. D372490 - Safety glasses and prescription lens insert combination
4. 5493348 - Means for mounting a prescription lens accessory onto a pair of glasses