Average Co-Inventor Count = 4.29
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. Columbia Gas System Service Corporation (3 from 29 patents)
3 patents:
1. 4719767 - Absorption refrigeration and heat pump system
2. 4646541 - Absorption refrigeration and heat pump system
3. 4641588 - Heat shield