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 (4 from 832,680 patents)
4 patents:
1. 7520510 - Playing cards
2. 7118113 - Playing cards and method for playing card games therewith
3. 6547247 - Playing cards and method for playing card games therewith
4. 6149155 - Playing cards