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

Michael J. Darwin — 9 Patents

ZYZygo: 3 patents #24 of 99Top 25%
NINanometrics Incorporated: 2 patents #40 of 127Top 35%
EIElectro Scientific Industries: 1 patents #145 of 314Top 50%
RTRudolph Technologies: 1 patents #70 of 136Top 55%
Portland, OR: #1,864 of 9,213 inventorsTop 25%
Oregon: #4,682 of 28,073 inventorsTop 20%
Overall (All Time): #561,623 of 4,157,543Top 15%
9 Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
11193759 Heterodyning optical phase measuring device for specular surfaces 2021-12-07
10627223 Heterodyning optical phase measuring device for specular surfaces 2020-04-21
9610653 Method and apparatus for separation of workpieces and articles produced thereby Haibin Zhang, Fang Shan, Mathew Noel Rekow, Min Zhang, Glenn Simenson +5 more 2017-04-04
8818754 Thin films and surface topography measurement using reduced library Boris V. Kamenev 2014-08-26
8534135 Local stress measurement Timothy A. Johnson 2013-09-17
7948636 Interferometer and method for measuring characteristics of optically unresolved surface features Peter De Groot, Robert Stoner, Gregg M. Gallatin, Xavier Colonna De Lega 2011-05-24
7684049 Interferometer and method for measuring characteristics of optically unresolved surface features Peter De Groot, Robert Stoner, Gregg M. Gallatin, Xavier Colonna De Lega 2010-03-23
7539583 Method and system for defect detection Yonghang Fu, Yongqiang Liu 2009-05-26
7324214 Interferometer and method for measuring characteristics of optically unresolved surface features Peter De Groot, Robert Stoner, Gregg M. Gallatin, Xavier Colonna De Lega 2008-01-29