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. Williams Electronics Games, Inc. (3 from 91 patents)
3 patents:
1. 5924690 - Drop target for a pinball game
2. 5700008 - Amusement device integrating games of skill and chance
3. 5651546 - Amusement device reward system