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Ping He
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Lincoln, NE, US
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Patents Grants
last 30 patents
Information
Patent Grant
Reflectometer, spectrophotometer, ellipsometer or polarimeter syste...
Patent number
11,885,738
Issue date
Jan 30, 2024
J. A. Woollam Co., Inc.
Martin M. Liphardt
G01 - MEASURING TESTING
Information
Patent Grant
Reflectometer, spectrophotometer, ellipsometer and polarimeter syst...
Patent number
11,675,208
Issue date
Jun 13, 2023
J. A. Woollam Co., Inc.
Stefan Schoeche
G01 - MEASURING TESTING
Information
Patent Grant
Beam focusing and reflective optics
Patent number
10,989,601
Issue date
Apr 27, 2021
J. A. Woollam Co., Inc.
Martin M. Liphardt
G01 - MEASURING TESTING
Information
Patent Grant
Reflectometer, spectrophotometer, ellipsometer or polarimeter syste...
Patent number
10,859,439
Issue date
Dec 8, 2020
J. A. Woollam Co., Inc.
Martin M. Lihardt
G01 - MEASURING TESTING
Information
Patent Grant
Systems and methods for producing a more uniform intensity waveleng...
Patent number
10,627,288
Issue date
Apr 21, 2020
J. A. Woollam Co., Inc.
Martin M Liphardt
G01 - MEASURING TESTING
Information
Patent Grant
Systems and methods for producing a more uniform intensity waveleng...
Patent number
10,612,976
Issue date
Apr 7, 2020
J.A. Woollan Co., Inc.
Martin M. Liphardt
G01 - MEASURING TESTING
Information
Patent Grant
Beam focusing and reflecting optics with enhanced detector system
Patent number
10,338,362
Issue date
Jul 2, 2019
J. A. Woollam Co., Inc.
Martin M. Liphardt
G02 - OPTICS
Information
Patent Grant
Enhanced detector operation made possible by application of a funct...
Patent number
10,247,611
Issue date
Apr 2, 2019
J.A. Wooliam Co., Inc.
Martin M. Liphardt
G01 - MEASURING TESTING
Information
Patent Grant
Information maintenance, intensity attenuation, and angle/plane of...
Patent number
10,066,989
Issue date
Sep 4, 2018
J. A. Woollam Co., Inc.
Martin M Liphardt
G01 - MEASURING TESTING
Information
Patent Grant
Deviation angle self-compensating substantially achromatic retarder
Patent number
10,061,068
Issue date
Aug 28, 2018
J. A. Woollam Co., Inc.
Craig M. Herzinger
G02 - OPTICS
Information
Patent Grant
Beam focusing and reflective optics
Patent number
10,018,815
Issue date
Jul 10, 2018
J.A. Woolam Co., Inc.
Martin M. Liphardt
G02 - OPTICS
Information
Patent Grant
Elliposometer system with polarization state generator and polariza...
Patent number
9,933,357
Issue date
Apr 3, 2018
J. A. Woollam Co., Inc.
Ping He
G01 - MEASURING TESTING
Information
Patent Grant
Beam focusing and beam collecting optics with wavelength dependent...
Patent number
9,921,395
Issue date
Mar 20, 2018
J. A. Woollam Co., Inc.
Martin M. Liphardt
G02 - OPTICS
Information
Patent Grant
Beam focusing and beam collecting optics
Patent number
9,500,843
Issue date
Nov 22, 2016
J. A. Woollam Co., Inc.
Martin M. Liphardt
G02 - OPTICS
Information
Patent Grant
Reflective focusing optics
Patent number
9,442,016
Issue date
Sep 13, 2016
J. A. Woollam Co., Inc.
Martin M. Liphardt
G01 - MEASURING TESTING
Information
Patent Grant
View-finder in ellipsometer or the like systems
Patent number
8,587,781
Issue date
Nov 19, 2013
J. A. Woollam Co., Inc.
Martin M Liphardt
G01 - MEASURING TESTING
Information
Patent Grant
Ellipsometric investigation and analysis of textured samples
Patent number
8,570,513
Issue date
Oct 29, 2013
J. A. Woollam Co., Inc.
James N. Hilfiker
G01 - MEASURING TESTING
Information
Patent Grant
Ellipsometers and polarimeters comprising polarization state compen...
Patent number
8,467,057
Issue date
Jun 18, 2013
J. A. Woollam Co., Inc.
Blaine D. Johs
G01 - MEASURING TESTING
Information
Patent Grant
Mounting for deviation angle self compensating substantially achrom...
Patent number
8,462,341
Issue date
Jun 11, 2013
J. A. Woollam Co., Inc.
Ping He
G01 - MEASURING TESTING
Information
Patent Grant
Fast sample height, AOI and POI alignment in mapping ellipsometer o...
Patent number
8,436,994
Issue date
May 7, 2013
J. A. Woollam Co., Inc.
Martin M. Liphardt
G01 - MEASURING TESTING
Information
Patent Grant
View-finder in ellipsometer or the like systems
Patent number
8,339,602
Issue date
Dec 25, 2012
J. A. Woollam Co., Inc.
Martin M. Liphardt
Information
Patent Grant
System and method of applying horizontally oriented arc-lamps in el...
Patent number
8,189,193
Issue date
May 29, 2012
J. A. Woollam Co., Inc.
Martin M. Liphardt
G01 - MEASURING TESTING
Information
Patent Grant
Sample investigating system and method of use
Patent number
8,159,672
Issue date
Apr 17, 2012
J. A. Woollam Co., Inc.
Martin M. Liphardt
G01 - MEASURING TESTING
Information
Patent Grant
Ellipsometric investigation and analysis of textured samples
Patent number
8,059,276
Issue date
Nov 15, 2011
J. A. Woollam Co., Inc.
James N. Hilfiker
G01 - MEASURING TESTING
Information
Patent Grant
Spatial filter in sample investigation system
Patent number
8,013,996
Issue date
Sep 6, 2011
J. A. Woollam Co., Inc.
Martin M. Liphardt
G01 - MEASURING TESTING
Information
Patent Grant
Fast sample height, AOI and POI alignment in mapping ellipsometer o...
Patent number
7,872,751
Issue date
Jan 18, 2011
J. A. Woollam Co., Inc.
Martin M. Liphardt
G01 - MEASURING TESTING
Information
Patent Grant
Automated ellipsometer and the like systems
Patent number
7,746,472
Issue date
Jun 29, 2010
J. A. Woollam Co., Inc.
Blaine D. Johs
G01 - MEASURING TESTING
Information
Patent Grant
Flying mobile on-board ellipsometer, polarimeter, reflectometer and...
Patent number
7,746,471
Issue date
Jun 29, 2010
J. A. Woollam Co., Inc.
Blaine D. Johs
G01 - MEASURING TESTING
Information
Patent Grant
System and method of applying horizontally oriented arc-lamps in el...
Patent number
7,738,105
Issue date
Jun 15, 2010
Martin M. Liphardt
G01 - MEASURING TESTING
Information
Patent Grant
Information maintenance during intensity attenuation in focused beams
Patent number
7,671,989
Issue date
Mar 2, 2010
J. A. Woollam Co., Inc.
Martin M. Liphardt
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
Reflectometer, spectrophotometer, ellipsometer and polarimeter syst...
Publication number
20220244169
Publication date
Aug 4, 2022
J. A. WOOLLAM CO., INC.
Ping He
G02 - OPTICS
Information
Patent Application
BEAM FOCUSING AND BEAM COLLECTING OPTICS
Publication number
20160356998
Publication date
Dec 8, 2016
J. A. WOOLLAM CO., INC.
Martin M. Liphardt
G02 - OPTICS
Information
Patent Application
Reflective focusing optics
Publication number
20150355029
Publication date
Dec 10, 2015
J. A. WOOLLAM CO., INC.
Martin M. Liphardt
G02 - OPTICS
Information
Patent Application
Reflectometer, spectrophotometer, ellipsometer or polarimeter syste...
Publication number
20140204203
Publication date
Jul 24, 2014
J. A. WOOLLAM CO., INC.
Martin M. Lihardt
G02 - OPTICS
Information
Patent Application
View-finder in ellipsometer or the like systems
Publication number
20120314218
Publication date
Dec 13, 2012
Martin M. Liphardt
G02 - OPTICS
Information
Patent Application
Ellipsometric investigation and analysis of textured samples
Publication number
20120057158
Publication date
Mar 8, 2012
James N. Hilfiker
G01 - MEASURING TESTING
Information
Patent Application
Mounting for deviation angle self compensating substantially achrom...
Publication number
20110188040
Publication date
Aug 4, 2011
Ping He
G01 - MEASURING TESTING
Information
Patent Application
Fast sample height, AOI and POI alignment in mapping ellipsometer o...
Publication number
20110109906
Publication date
May 12, 2011
Martin M. Liphardt
G01 - MEASURING TESTING
Information
Patent Application
Fast sample height, AOI and POI alignment in mapping ellipsometer o...
Publication number
20090103093
Publication date
Apr 23, 2009
Martin M. Liphardt
G01 - MEASURING TESTING
Information
Patent Application
Ellipsometric investigation and analysis of textured samples
Publication number
20090103094
Publication date
Apr 23, 2009
James N. Hilfiker
G01 - MEASURING TESTING
Information
Patent Application
Information maintenance during intensity attenuation in focused beams
Publication number
20080285035
Publication date
Nov 20, 2008
Martin M. Liphardt
G01 - MEASURING TESTING
Information
Patent Application
System for and method of investigating the exact same point on a sa...
Publication number
20070097373
Publication date
May 3, 2007
Galen L. Pfeiffer
G01 - MEASURING TESTING
Information
Patent Application
Combined spatial filter and relay systems in rotating compensator e...
Publication number
20060268272
Publication date
Nov 30, 2006
Martin M. Liphardt
G02 - OPTICS
Information
Patent Application
Combined spatial filter and relay systems
Publication number
20060268271
Publication date
Nov 30, 2006
Martin M. Liphardt
G02 - OPTICS
Information
Patent Application
Spatial filter source beam conditioning in ellipsometer and the lik...
Publication number
20010046089
Publication date
Nov 29, 2001
Martin M. Liphardt
G01 - MEASURING TESTING
Information
Patent Application
System and method of improving electromagnetic radiation beam chara...
Publication number
20010033377
Publication date
Oct 25, 2001
James D. Welch
G01 - MEASURING TESTING