Average Co-Inventor Count = 2.19
ph-index = 7
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. Ovonic Battery Company, Inc. (6 from 114 patents)
2. Energy Conversion Devices, Inc. (1 from 429 patents)
7 patents:
1. 7226675 - Very low emission hybrid electric vehicle incorporating an integrated propulsion system including a fuel cell and a high power nickel metal hydride battery pack
2. 6837321 - Hybrid electric vehicle incorporating an integrated propulsion system
3. 6820706 - Method and system for hydrogen powered internal combustion engine
4. 6759034 - Very low emission hybrid electric vehicle incorporating an integrated propulsion system including a hydrogen powered internal combustion engine and a high power Ni-MH battery pack
5. 6565836 - Very low emission hybrid electric vehicle incorporating an integrated propulsion system including a hydrogen powered internal combustion engine and a high power Ni-MH battery pack
6. 6557655 - Hybrid electric vehicle
7. 6330925 - Hybrid electric vehicle incorporating an integrated propulsion system