Average Co-Inventor Count = 2.00
ph-index = 1
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. Xm Ltd. (2 from 4 patents)
2 patents:
1. 5517355 - Card adapted for use in stereoscope
2. 5384655 - Stereoscopic viewing device