Average Co-Inventor Count = 4.44
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 (2 from 423 patents)
2 patents:
1. 9382042 - Pull activated greeting cards and gift bags with motion and audio
2. 9186928 - Pull activated greeting cards and gift bags with motion and audio