Average Co-Inventor Count = 4.23
ph-index = 3
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 (10 from 14,076 patents)
11 patents:
1. D1014592 - Magnifying lens
2. 11376162 - Automatic darkening filter assembly for a welding protector and a welding protector
3. D957064 - User interface for a welding helmet
4. D918483 - User interface for a welding helmet
5. D917594 - Magnifying lens
6. 10952902 - Automatic darkening filter assembly for a welding protector and a welding protector
7. D901782 - Welding helmet
8. D893106 - Welding helmet
9. D875321 - Outer protection plate for a welding helmet
10. D854255 - Inner molded plate for protective helmets
11. D841893 - Recessed snag-resistant knobs for adjusting a welding shields pivot action