Average Co-Inventor Count = 3.04
ph-index = 6
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 (17 from 423 patents)
17 patents:
1. D917417 - Phonograph greeting card
2. D905655 - Phonograph greeting card
3. 9987871 - Greeting card with motorized gift card holder
4. 9796203 - Greeting cards with suspended motion
5. 9669645 - Greeting card with removable disc
6. D783717 - Greeting card with removable disc
7. D778354 - Paddle ball greeting card
8. D768236 - Greeting card with tie
9. D764582 - Greeting card
10. D752476 - Novelty gift plaque
11. 8973291 - Motorized foam greeting card
12. D695340 - Greeting card
13. 8272154 - Flip book greeting cards
14. D657415 - Three dimensional greeting card
15. D653287 - Three dimensional greeting card