Average Co-Inventor Count = 4.00
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. Zenith Data Systems Corporation (2 from 58 patents)
2 patents:
1. 5646817 - Adjustable keyboard
2. 5596480 - Split rotatable keyboard