Average Co-Inventor Count = 2.25
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. Halla Climate Control Corporation (2 from 168 patents)
2. Halls Climate Control Corporation (1 from 1 patent)
3 patents:
1. 7523781 - Heat exchanger
2. 7490659 - Integral-type heat exchanger
3. 7413003 - Plate for heat exchanger