Average Co-Inventor Count = 1.80
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. United Solar Systems Corporation (3 from 50 patents)
3 patents:
1. 5575861 - Photovoltaic shingle system
2. 5437735 - Photovoltaic shingle system
3. 5157851 - Pinching gate valve