Average Co-Inventor Count = 2.14
ph-index = 4
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. Showa Aluminum Corporation (4 from 152 patents)
4 patents:
1. 6170567 - Heat exchanger
2. 5076351 - Heat pipe
3. 4934455 - Plate-fin heat exchanger
4. 4804041 - Heat-exchanger of plate fin type