Average Co-Inventor Count = 3.43
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 Hospital Supply Corporation (1 from 433 patents)
2. Circon Corporation (1 from 73 patents)
2 patents:
1. 4699463 - Multidirectional viewing borescope
2. 4659195 - Engine inspection system