Average Co-Inventor Count = 2.65
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. 3m Innovative Properties Company (9 from 14,059 patents)
9 patents:
1. 9479859 - Concha-fit electronic hearing protection device
2. D738112 - Portable charging storage case
3. D719549 - Hearing protector windscreen
4. D719139 - Hearing protector housing
5. D717050 - Portable charging storage case
6. 8404990 - Switch system having a button travel limit feature
7. D645028 - Push to talk control box
8. D632677 - Ear bud body shape
9. D632678 - Ear bud shaft and taper