Average Co-Inventor Count = 6.38
ph-index = 7
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 (12 from 423 patents)
13 patents:
1. 9189977 - Electronic greeting cards
2. 8549776 - Flap sensor activated greeting cards
3. 8448360 - Flap sensor activated greeting cards
4. 8448361 - Motion greeting cards
5. 8438763 - Three dimensional illuminated greeting cards
6. 8418384 - Pop-up musical greeting cards
7. 8322058 - Telescoping greeting cards with activated sound or light or mechanical functions
8. 8281507 - Three dimensional illuminated greeting cards
9. D665446 - Greeting card
10. 8230624 - Motion greeting cards
11. D661348 - Greeting card
12. 8176663 - Electronic greeting cards and novelties with moveable elements and manual electronic circuit activation
13. D657817 - Greeting card