Average Co-Inventor Count = 3.00
ph-index = 1
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. Helix Technology Corporation (1 from 163 patents)
1 patent:
1. 4831828 - Cryogenic refrigerator having a convection system to cool a hermetic