Average Co-Inventor Count = 3.00
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. Msa Technology, LLC (2 from 113 patents)
2. Mine Safety Appliances Company (1 from 242 patents)
3 patents:
1. 12011057 - Safety helmet
2. 9125448 - Support for visors and face shields
3. 6264392 - Pivot joint for faceshield assembly