Average Co-Inventor Count = 1.64
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. Computerized Security Systems (3 from 22 patents)
3 patents:
1. D535296 - Card key encoder
2. D531629 - Hand-held terminal
3. D519021 - Lever