Average Co-Inventor Count = 1.20
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. Si Handling Systems, Inc. (3 from 64 patents)
3 patents:
1. 4059053 - Driverless vehicle traffic control system
2. 4041873 - Driverless vehicle turntable system
3. 4036148 - Vehicle and track system