Average Co-Inventor Count = 7.00
ph-index = 1
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. Gm Global Technolgoy Operations, Inc. (1 from 31,040 patents)
2. University of Michigan (1 from 3,390 patents)
1 patent:
1. 8261860 - Hybrid powertrain system using free piston linear alternator engines