Average Co-Inventor Count = 2.40
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. Other (1 from 832,812 patents)
2. Royal Industries, Inc. (1 from 22 patents)
2 patents:
1. 4135367 - Thermal energy transformer
2. 4115007 - Vehicle wheel alignment system