RB

Roger Lawrence Barr

IBM: 4 patents #21,733 of 70,183Top 35%
Overall (All Time): #1,271,350 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6344698 More robust alignment mark design Robert T. Froebel, Paul D. Sonntag 2002-02-05
5776645 Lithographic print bias/overlay target and applied metrology Patrick J. Couillard 1998-07-07
5756238 Lithographic print bias/overlay target and applied metrology Patrick J. Couillard 1998-05-26
5677091 Lithographic print bias/overlay target and applied metrology Patrick J. Couillard 1997-10-14