Average Co-Inventor Count = 4.60
ph-index = 4
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. Hallmark Cards, Inc. (6 from 233 patents)
6 patents:
1. 10573203 - Gift card presenter for greeting cards
2. 10140890 - Gift card presenter for greeting cards
3. 7975411 - Card for retaining items therein
4. 7827710 - Card for retaining items therein
5. 7204048 - Card for retaining items therein
6. D532452 - Gift card holder