Average Co-Inventor Count = 3.89
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. Hallmark Cards, Inc. (16 from 233 patents)
16 patents:
1. 11642906 - Greeting card having audio recording capabilities with trial mode feature
2. 11250630 - Immersive story creation
3. 10870306 - Greeting card having audio recording capabilities with trial mode feature
4. 10643482 - Fill-in-the-blank audio-story engine
5. 10486453 - Greeting card having audio recording capabilities with trial mode feature
6. 10071590 - Greeting card having audio recording capabilities with trial mode feature
7. 9759413 - Translucent object having housing, cavities and controller forming facial expressions
8. 9232288 - Article having karaoke record feature and simultaneous playback
9. 9200790 - Decorative object that produces a complimentary shadow design
10. 8961183 - Fill-in-the-blank audio-story engine
11. 8937535 - Greeting card with subsequent audio after closing
12. 8866630 - Container with internally emitted audio
13. 8736429 - Greeting card with subsequent audio after closing
14. 8719033 - Greeting card having karaoke record feature and simultaneous playback
15. 8558715 - Container with internally emitted audio