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Ronald L. Underwood

DP Dioptics Medical Products: 4 patents #5 of 11Top 50%
IBM: 1 patents #44,794 of 70,183Top 65%
📍 Holland, MI: #173 of 1,299 inventorsTop 15%
🗺 Michigan: #10,567 of 86,293 inventorsTop 15%
Overall (All Time): #578,850 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
8576022 Tuning a programmable power line filter Eric N. Chikando, Brad E. Dillon, Tuan D. Ngo, William J. Roberts, Eric R. Schumann 2013-11-05
6609255 Optically correct and clear eyeshields Henry Welling Lane 2003-08-26
D467959 Eyeshield Henry Welling Lane 2002-12-31
D462374 Eyeshield Henry Welling Lane 2002-09-03
D457908 Eyeshields Henry Welling Lane 2002-05-28
5674113 Clip-on sunglasses and system for cutting clip-on sunglasses 1997-10-07
5546140 Clip-on sunglasses 1996-08-13
5431595 System for cutting clip-on sunglasses 1995-07-11
5423712 Cutter for clip-on sunglasses Alan Wesley Brown 1995-06-13