JH

Joseph A. Hoffman

3M: 1 patents #484 of 1,260Top 40%
Overall (2016): #349,307 of 481,213Top 75%
1
Patents 2016

Issued Patents 2016

Patent #TitleCo-InventorsDate
9404637 Color shift sign Ellen O. Aeling, Michael A. Meis, John T. Simpson, Paul E. Humpal 2016-08-02