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

David R. Shouldice

CLCobe Laboratories: 9 patents #7 of 171Top 5%
GAGambro Ab: 1 patents #35 of 78Top 45%
Lakewood, CO: #79 of 1,100 inventorsTop 8%
Colorado: #4,613 of 40,980 inventorsTop 15%
Overall (All Time): #524,958 of 4,157,543Top 15%
10 Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
6409696 Extracorporeal blood processing methods and apparatus Coy Toavs, John J. Kappus, Mark J. Brierton, Jeffrey J. Blakeslee 2002-06-25
5921950 Extracorporeal blood processing methods and apparatus Coy Toavs, John J. Kappus, Mark J. Brierton, Jeffrey J. Blakeslee 1999-07-13
5919154 Extracorporeal blood processing methods and apparatus Coy Toavs, John J. Kappus, Mark J. Brierton, Jeffrey J. Blakeslee 1999-07-06
5824881 Gas/fluid detector for contained fluid systems Coy Toavs 1998-10-20
5676644 Extracorporeal blood processing methods and apparatus Coy Toavs, John J. Kappus, Mark J. Brierton, Jeffrey J. Blakeslee 1997-10-14
4897184 Fluid flow apparatus control and monitoring Daniel A. Powell, Tom L. Brose 1990-01-30
4857181 Control of cleaning of dialysate preparation apparatus Dennis M. Treu, Daniel A. Powell, Thomas Cernich 1989-08-15
4814073 Dialysate preparation apparatus with improved control 1989-03-21
4769151 Heater control for liquid flowing through a chamber 1988-09-06
4715398 Liquid level control Dennis M. Treu 1987-12-29