Average Co-Inventor Count = 3.43
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. Marvin Glass & Associates (2 from 422 patents)
2 patents:
1. 4961580 - Rotating ball collecting game
2. 4798455 - User reconfigurable novelty glasses