Average Co-Inventor Count = 2.00
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. Summagraphics Corporation (3 from 68 patents)
3 patents:
1. D327476 - Digitizing stylus
2. D322250 - Digitizing stylus
3. D320787 - Digitizing stylus