DR

Dale W. Richardson

ID International Research And Development: 2 patents #1 of 14Top 8%
RA Richardson & Associates: 2 patents #5 of 18Top 30%
📍 Portage, MI: #212 of 619 inventorsTop 35%
🗺 Michigan: #22,048 of 86,293 inventorsTop 30%
Overall (All Time): #1,301,504 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4925516 Method of making a device for cleaning electric knives James L. Phillips, Lawrence M. Silverman 1990-05-15
4878494 Cardio-valve assist unit and method for performing cardio-valve replacement surgery James L. Phillips, J. Donald Hill 1989-11-07
4852200 Device for cleaning electric knives James L. Phillips, Lawrence M. Silverman 1989-08-01
4834097 Cardio-valve assist unit and method for performing cardio-valve replacement surgery James L. Phillips, J. Donald Hill 1989-05-30