PG

Peter De Groot

ZY Zygo: 119 patents #1 of 99Top 2%
HS Hughes Danbury Optical Systems: 3 patents #1 of 35Top 3%
PE Perkinelmer: 2 patents #151 of 671Top 25%
TB The Boeing: 2 patents #5,172 of 15,756Top 35%
Overall (All Time): #8,984 of 4,157,543Top 1%
126
Patents All Time

Issued Patents All Time

Showing 25 most recent of 126 patents

Patent #TitleCo-InventorsDate
12104897 Interometric optical system 2024-10-01
10591284 Metrology of multi-layer stacks Leslie L. Deck 2020-03-17
10451413 Surface topography apparatus and method Leslie L. Deck 2019-10-22
9958254 Calibration of scanning interferometers Jake Beverage, Xavier Colonna de Lega, Martin F. Fay 2018-05-01
9798130 Measuring topography of aspheric and other non-flat surfaces Thomas Dresel, Jan Liesener 2017-10-24
9746348 Double pass interferometric encoder system Jan Liesener 2017-08-29
9658129 Method and system for determining information about a transparent optical element comprising a lens portion and a plane parallel portion Xavier Colonna de Lega, Martin F. Fay 2017-05-23
9599534 Optical evaluation of lenses and lens molds Martin F. Fay, Xavier Colonna de Lega 2017-03-21
9377292 Interferometry employing refractive index dispersion broadening of interference signals 2016-06-28
9140537 Interferometric heterodyne optical encoder system Michael D. Schroeder 2015-09-22
9025162 Interferometry for lateral metrology Xavier Colonna de Lega, Robert Stoner 2015-05-05
9025161 Double pass interferometric encoder system Jan Liesener 2015-05-05
8988690 Interferometric encoder systems Leslie L. Deck, Michael D. Schroeder 2015-03-24
8902431 Low coherence interferometry with scan error correction Jan Liesener, Mark Davidson, Xavier Colonna de Lega, Leslie L. Deck 2014-12-02
8885172 Interferometric heterodyne optical encoder system Michael D. Schroeder 2014-11-11
8854628 Interferometric methods for metrology of surfaces, films and underresolved structures Xavier Colonna de Lega, Jan Liesener 2014-10-07
8780334 Topographical profiling with coherence scanning interferometry 2014-07-15
8670127 Interferometric encoder systems Leslie L. Deck, Michael D. Schroeder 2014-03-11
8379218 Fiber-based interferometer system for monitoring an imaging interferometer Leslie L. Deck, Mark Davidson, Jan Liesener, Xavier Colonna De Lega 2013-02-19
8300233 Interferometric encoder systems Leslie L. Deck, Michael D. Schroeder 2012-10-30
8248617 Interferometer for overlay measurements Jan Liesener, Xavier Colonna De Lega 2012-08-21
8189202 Interferometer for determining overlay errors Jan Liesener, Xavier Colonna De Lega 2012-05-29
8126677 Analyzing surface structure using scanning interferometry Xavier Colonna De Lega 2012-02-28
8120781 Interferometric systems and methods featuring spectral analysis of unevenly sampled data Jan Liesener, Mark Davidson, Xavier Colonna de Lega, Leslie L. Deck 2012-02-21
8107085 Methods and systems for interferometric analysis of surfaces and related applications 2012-01-31