Average Co-Inventor Count = 2.59
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. 3M Innovative Properties Company (20 from 14,087 patents)
21 patents:
1. D1107876 - Filter frame
2. D1105627 - Hearing protection cups
3. D1101287 - Hearing protection cups
4. D1089600 - Reusable filter frame for filter media
5. D1052230 - Face mask
6. D1029788 - Voice masking headphone
7. D1027486 - Dispenser for a roll good
8. D1013183 - Brace support hook tab
9. 11547215 - Footrest device
10. D951350 - Dispenser for tape or other roll goods
11. D950970 - Footrest
12. 11320856 - Display systems and devices
13. D876649 - Elbow support
14. D873914 - Tape dispenser
15. D867451 - Note dispenser