Average Co-Inventor Count = 1.58
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. American Greetings Corporation (7 from 423 patents)
7 patents:
1. D834643 - Baseball jersey greeting card
2. D819730 - Bird cage greeting card
3. D809358 - Bottle opener
4. D786354 - Greeting card with bottle opener
5. D783715 - Trophy greeting card
6. 9302528 - Pop-up greeting cards
7. 8584385 - Interactive electronic greeting cards with tap and touch activated effects