Average Co-Inventor Count = 8.16
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. 8448361 - Motion greeting cards
2. 8438763 - Three dimensional illuminated greeting cards
3. 8281507 - Three dimensional illuminated greeting cards
4. 8230624 - Motion greeting cards
5. 8205365 - Three dimensional foam greeting cards
6. D657415 - Three dimensional greeting card
7. D653287 - Three dimensional greeting card