Average Co-Inventor Count = 3.12
ph-index = 3
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. Sperian Eye & Face Protection, Inc. (4 from 27 patents)
4 patents:
1. 8366266 - Safety eyewear
2. D648774 - Wicking bar for safety eyewear
3. D614359 - Safety eyewear
4. D565801 - Blade welding helmet