Average Co-Inventor Count = 1.03
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. Entex Industries, Inc. (16 from 18 patents)
2. Kabushiki Kaisha Hanzawa Corporation (1 from 5 patents)
3. K.k. Hanzawa Corporation (1 from 2 patents)
4. Hanzawa Corporation (1 from 1 patent)
5. Kabushiki Kaisa Hanzawa Corporation (1 from 1 patent)
20 patents:
1. 5127869 - Sound producing toy
2. 5052972 - Drive device for toy automobile
3. D313045 - Electronic educational game
4. 4767376 - Toy vehicle
5. D268772 - Toy motorcycle
6. D268496 - Miniature computer or the like
7. D266775 - Hand-held electronic pinball game housing or the like
8. D266679 - Electronic hand-held road race game housing or the like
9. D266573 - Toy vehicle or the like
10. D265407 - Hand-held electronic football game housing or the like
11. D264732 - Electronic hand-held hockey game housing or the like
12. D264355 - Electronic hand-held baseball game housing or the like
13. D264227 - Electronic hand-held baseball game housing or the like
14. D264228 - Electronic hand-held soccer game housing or the like
15. D264226 - Electronic mechanical baseball game housing or the like