Average Co-Inventor Count = 4.44
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. Mine Safety Appliances Company (2 from 242 patents)
2 patents:
1. 8229142 - Devices and systems including transducers
2. D481053 - Thermal imaging camera