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. E.d. Bullard Company (2 from 53 patents)
2. Bullard Gmbh (0 patent)
2 patents:
1. 8381318 - Adapter for protective helmets
2. D666775 - Protective helmet