Average Co-Inventor Count = 2.33
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. Onan Corporation (3 from 68 patents)
3 patents:
1. 5606946 - Auxiliary power unit for a hybrid electric vehicle
2. 5495907 - Engine driven generator set system having substantially no roll torque
3. 5469820 - Auxiliary power unit for a hybrid electrical vehicle