Average Co-Inventor Count = 1.80
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. Other (3 from 832,843 patents)
3 patents:
1. 7142933 - Apparatus for determining performance-indicating numbers in sports games, particularly in ice-hockey
2. 5527033 - Apparatus for determining performance-indicating numbers in sports
3. 3987965 - Water valve