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

Mark B. Siehling

COConrac: 2 patents #1 of 8Top 15%
Hudsonville, MI: #100 of 300 inventorsTop 35%
Michigan: #27,158 of 86,293 inventorsTop 35%
Overall (All Time): #1,495,488 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
D791847 Welding transformer Donald B. DeCorte 2017-07-11
4943904 D.C. power unit assembly including unitized single-phase D.C. power units Stanley R. Van Antwerp 1990-07-24
4682000 Welding transformer and rectifier assembly Gary Edward Holt, Stanley R. Van Antwerp 1987-07-21