Average Co-Inventor Count = 4.00
ph-index = 2
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. Plug Power Inc. (1 from 176 patents)
2. Transtech Systems, Inc. (1 from 29 patents)
2 patents:
1. 6988850 - Pavement ramp edge making
2. 6372372 - Clamping system for a fuel cell stack