Average Co-Inventor Count = 3.26
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. Riddell, Inc. (5 from 133 patents)
5 patents:
1. 12220016 - Protective sports helmet with advanced visor system, lower chin bar assembly and energy attenuation system
2. D993541 - Chin guard for a football helmet
3. D946833 - Visor for a football helmet
4. D939782 - Visor for a football helmet
5. D939151 - Visor for a football helmet