Average Co-Inventor Count = 5.41
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. Sanyo Electric Co., Ltd. (4 from 8,782 patents)
2. Other (1 from 832,912 patents)
5 patents:
1. 7276311 - Fuel cell having temperature adjustment means for reaction gas
2. 7104079 - Heat pump
3. 7066245 - On-vehicle air-conditioner for air-conditioning
4. 7060383 - Fuel cell
5. 6601773 - Heat pump type hot water supply apparatus