DR

David Ristau

ND Northern Digital: 1 patents #21 of 47Top 45%
SP Spx: 1 patents #217 of 468Top 50%
SF Spx Flow: 1 patents #10 of 26Top 40%
📍 Kitchener, CA: #361 of 1,348 inventorsTop 30%
Overall (All Time): #1,129,612 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11691231 Systems and methods for manufacturing a stack trim Robert Wnek, Mark Bober, Brian L. Jarrett, Kevin Teygart 2023-07-04
9677673 Balanced double seated globe valve with flexible plub Nathan T. Hansen 2017-06-13
8469341 Desuperheater seat-ring apparatus Veaceslav Ignatan 2013-06-25
5828770 System for determining the spatial position and angular orientation of an object Stephen Eldon Leis 1998-10-27