KH

Kjell A. Hummel

3M: 4 patents #3,441 of 11,543Top 30%
📍 Nordstraße, SE: #22 of 135 inventorsTop 20%
Overall (All Time): #1,144,600 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11376162 Automatic darkening filter assembly for a welding protector and a welding protector Johan Hansson, Thomas B. Stenvall, Linus P. Bastman 2022-07-05
10952902 Automatic darkening filter assembly for a welding protector and a welding protector Johan Hansson, Thomas B. Stenvall, Linus P. Bastman 2021-03-23
D854255 Inner molded plate for protective helmets Linus P. Bastman, Johan Hansson 2019-07-16
D841893 Recessed snag-resistant knobs for adjusting a welding shields pivot action Linus P. Bastman, Johan Hansson 2019-02-26