Average Co-Inventor Count = 1.74
ph-index = 8
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. Sight and Sound Inc. (5 from 5 patents)
2. Western Publishing Company, Inc. (4 from 27 patents)
3. Other (1 from 833,002 patents)
10 patents:
1. 5551905 - Successive image display device
2. 5453013 - Interactive audio visual work
3. D361597 - Interactive audiovisual board
4. 5404444 - Interactive audiovisual apparatus
5. D349923 - Electronic book
6. 5331212 - Electrical device with alternative battery power supplies
7. 5248843 - Electronic musical instrument with sound-control panel and keyboard
8. 5209665 - Interactive audio visual work
9. 5087043 - Interactive audio-visual puzzle
10. D322640 - Toy piano