Average Co-Inventor Count = 2.00
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. Other (1 from 832,912 patents)
2. Zen Optical Technology, LLC (1 from 1 patent)
2 patents:
1. 7164793 - Pen-based handwritten character recognition and storage system
2. 6968083 - Pen-based handwritten character recognition and storage system