Average Co-Inventor Count = 4.63
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 (27 from 423 patents)
27 patents:
1. 9597916 - Motorized gift card holders
2. 9189977 - Electronic greeting cards
3. 9186927 - Greeting card with spring loaded slide track activated audio
4. 9056517 - Pop up greeting cards
5. 9009998 - Motion greeting cards
6. 8763286 - Sound generating pull-out greeting cards with removable panels
7. 8726547 - Greeting card with spring loaded slide track audio trigger
8. 8584385 - Interactive electronic greeting cards with tap and touch activated effects
9. 8567101 - Sing-along greeting cards
10. 8549776 - Flap sensor activated greeting cards
11. 8490305 - Motion greeting cards
12. 8448360 - Flap sensor activated greeting cards
13. 8448361 - Motion greeting cards
14. 8438763 - Three dimensional illuminated greeting cards
15. 8322058 - Telescoping greeting cards with activated sound or light or mechanical functions