Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
GP

Gregory Piefer — 1 Patent in 2021

Janesville, WI: #10 of 27 inventorsTop 40%
Wisconsin: #1,578 of 4,723 inventorsTop 35%
Overall (2021): #444,766 of 548,734Top 85%
1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10978214 Segmented reaction chamber for radioisotope production Thomas R. Mackie 2021-04-13