Average Co-Inventor Count = 2.19
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. Babcock-hitachi Kabushiki Kaisha (3 from 222 patents)
3 patents:
1. 5617916 - Fin tube heat exchanger
2. 5033539 - Heat exchanger apparatus
3. 5007240 - Hybrid Rankine cycle system