WI

Wilbur James Kellum, III

AG Amesbury Group: 2 patents #5 of 16Top 35%
CA Caldwell Manufacturing Company North America: 1 patents #2 of 6Top 35%
📍 Garretson, SD: #1 of 1 inventorsTop 100%
🗺 South Dakota: #16 of 263 inventorsTop 7%
Overall (2020): #63,749 of 565,922Top 15%
3
Patents 2020

Issued Patents 2020

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10704308 Window balance assembly Mark R. Baker 2020-07-07
10563440 Inverted constant force window balance Chad Swier, Travis Steen, Tyler Welbig 2020-02-18
10563441 Constant force window balance engagement system 2020-02-18