RH

Richard B. Hartman

3M: 3 patents #4,214 of 11,543Top 40%
📍 Windom, MN: #424 of 2,819 inventorsTop 20%
🗺 Minnesota: #9,275 of 52,454 inventorsTop 20%
Overall (All Time): #665,340 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
6187127 Veneer tape and method of use Robert E. Bolitsky 2001-02-13
5971829 Motorized ice cream cone 1999-10-26
5650060 Ionically conductive agent, system for cathodic protection of galvanically active metals, and method and apparatus for using same Haitao Huang, Timothy M. Dietz 1997-07-22
5603207 Crafts rope maker 1997-02-18
5240256 Tethered ball and receptacle toy with revolving frame 1993-08-31
5147236 Whirligig with articulated frame 1992-09-15
4998724 Thumb wrestling game apparatus with stabilizing handle 1991-03-12
4548862 Flexible tape having bridges of electrically conductive particles extending across its pressure-sensitive adhesive layer 1985-10-22