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

Thomas C. Heldwein — 5 Patents

UOUop: 5 patents #497 of 1,854Top 30%
Lockport, NY: #48 of 276 inventorsTop 20%
New York: #26,803 of 115,490 inventorsTop 25%
Overall (All Time): #1,022,647 of 4,157,543Top 25%
5 Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
8020838 Contacting stages for co-current contacting apparatuses Joseph Agnello, Aaron J. Muck, Zhanping Xu, Brian J. Nowak 2011-09-20
7618472 Vane-type demister Joseph Agnello, Zhanping Xu, Aaron J. Muck 2009-11-17
7424999 Co-current vapor-liquid contacting apparatus Zhanping Xu, Brian J. Nowak, Joseph Agnello, Andrew J. Criscione, Aaron J. Muck 2008-09-16
6113079 Adjustable circumference fractionation tray and method of installation Nicholas F. Urbanski, Lawrence S. Graczyk, Michael R. Resetarits 2000-09-05
6095504 Supports for stacked fractionation tray end pieces Nicholas F. Urbanski, Aaron J. Muck, Michael R. Resetarits 2000-08-01