Average Co-Inventor Count = 2.93
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. (4 from 233 patents)
4 patents:
1. 5993048 - Personalized greeting card system
2. 5559714 - Method and apparatus for display sequencing personalized social occasion
3. 5546316 - Computer controlled system for vending personalized products
4. 5513116 - Computer controlled machine for vending personalized products or the like