Average Co-Inventor Count = 4.20
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. American Sigma, Inc. (2 from 16 patents)
2 patents:
1. D457491 - Ultrasonic transducer
2. 5587926 - Refrigerated fluid sampling apparatus and method with variable volume