Average Co-Inventor Count = 10.00
ph-index = 1
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 (1 from 423 patents)
1 patent:
1. 8176663 - Electronic greeting cards and novelties with moveable elements and manual electronic circuit activation