TS

Thomas B. Stenvall

3M: 3 patents #4,214 of 11,543Top 40%
Overall (All Time): #1,413,759 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11376162 Automatic darkening filter assembly for a welding protector and a welding protector Johan Hansson, Kjell A. Hummel, Linus P. Bastman 2022-07-05
11324275 Welding helmet Martin Berggren 2022-05-10
10952902 Automatic darkening filter assembly for a welding protector and a welding protector Johan Hansson, Kjell A. Hummel, Linus P. Bastman 2021-03-23