Average Co-Inventor Count = 2.65
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. Long Hall Technologies (6 from 9 patents)
2. M.h. Segan Limited Partnership (2 from 19 patents)
3. Long Hall Tehnologies, L.l.c. (1 from 1 patent)
9 patents:
1. D395307 - Telephone
2. D395047 - Combined CD player and AM/FM stereo boom box
3. D393272 - Camera
4. D388435 - Combined AM/FM radio and stereo cassette player
5. D388436 - Stereo headphone
6. D386762 - AM/FM transistor radio
7. D383485 - Calculator
8. D380697 - Holiday door chime
9. 5443259 - Game apparatus including basketball, pinball, and target bowling