Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
RB

Robert C. Buchanan — 3 Patents in 2021

CICardinal Ig: 3 patents #1 of 16Top 7%
Spring Green, WI: #1 of 8 inventorsTop 15%
Wisconsin: #424 of 4,723 inventorsTop 9%
Overall (2021): #65,862 of 548,734Top 15%
3 Patents 2021

Issued Patents 2021

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11198206 Automated seaming apparatus and method Curt L. Queck, Michael J. Milewski, Erik W. Carlson, Jonathan D. Wyman 2021-12-14
11168515 Multiple-pane insulating glazing unit assembly, gas filling, and pressing machine Curtis Lee Queck, Michael J. Milewski 2021-11-09
11111086 Glass stacking systems and methods Karl Chic 2021-09-07