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

Richard A. Griewski — 6 Patents

3M: 3 patents #4,214 of 11,543Top 40%
TSTerumo Cardiovascular Systems: 3 patents #22 of 101Top 25%
Canton, MI: #533 of 2,230 inventorsTop 25%
Michigan: #15,670 of 86,293 inventorsTop 20%
Overall (All Time): #875,020 of 4,157,543Top 25%
6 Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
7006005 Adapter pod for use in medical perfusion system Richard A. Nazarian, Dirk R. Smith, James R. Watts, Timothy J. Kriewall 2006-02-28
6783328 Method and apparatus for controlling fluid pumps Lori Lucke, Richard M. Willems 2004-08-31
6609900 Dynamic brake with backlash control for peristaltic pump Lori Lucke, David R. Danielson 2003-08-26
6164920 Perfusion system with control network Richard A. Nazarian, Dirk R. Smith, James R. Watts, Timothy J. Kriewall 2000-12-26
5813972 Medical perfusion system with data communications network Richard A. Nazarian, Dirk R. Smith, James R. Watts, Timothy J. Kriewall 1998-09-29
5752931 Perfusion system with perfusion circuit display Richard A. Nazarian, Bradley Keyes, Janelle J. Kozak, Timothy J. Kriewall 1998-05-19