J.A. WOOLLAM CO., INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G01J MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY 1295
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 47159
 
  
 
G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS1386
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 9196
 
  
 
G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS 3130
 
  
 
C23C COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 299
 
  
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 2240
 
  
 
A22C PROCESSING MEAT, POULTRY, OR FISH 129
 
  
 
A61K PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES 1254
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2014/0204,203 Reflectometer, spectrophotometer, ellipsometer or polarimeter system including sample imaging system that simultaneously meets scheimpflug condition and overcomes keystone errorMar 13, 13Jul 24, 14[G01N]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9921352 Biased fast axis retarder systemMay 23, 17Mar 20, 18[G02B]
9921395 Beam focusing and beam collecting optics with wavelength dependent filter element adjustment of beam areaNov 18, 16Mar 20, 18[G01N, G02B]
9851294 Integrated mid-infrared, far infrared and terahertz optical Hall effect (OHE) instrument, and method of useJun 24, 15Dec 26, 17[G01J, G01N]
9658151 System for viewing samples that are undergoing ellipsometric investigation in real timeFeb 06, 15May 23, 17[H04N, G01N]
9599569 Method to enhance sensitivity to surface normal optical functions of anisotropic films using attenuated total reflectionApr 28, 16Mar 21, 17[C23C, H05B, G01M, G01N, G02B]
9546943 System and method for investigating change in optical properties of a porous effective substrate surface as a function of a sequence of solvent partial pressures at atmospheric pressureMar 18, 16Jan 17, 17[G01N]
9500843 Beam focusing and beam collecting opticsAug 08, 16Nov 22, 16[G01J, G02B]
9442016 Reflective focusing opticsNov 04, 14Sep 13, 16[G01J, G01N, G02B]
9360369 System for determining average ellipsometric parameters for planar or non-planar shaped objects, and method of its useJun 20, 15Jun 07, 16[G01J]
9347768 In line ellipsometer system and method of useMar 06, 12May 24, 16[G01J, G01N, G01B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0356,520 Method to enhance sensitivity to surface-normal optical functions of anisotropic films using attenuated total reflectionAbandonedMay 22, 14Dec 04, 14[G01N]
6657888 Application of high spin polarization materials in two terminal non-volatile bistable memory devicesExpiredApr 30, 02Dec 02, 03[G11C]
6408951 Automatic cable-cutting apparatusExpiredMay 14, 01Jun 25, 02[B25D]
2001/0046,089 Spatial filter source beam conditioning in ellipsometer and the like systemsAbandonedMay 14, 01Nov 29, 01[G02B]
5758576 Gripper bar for deliveries of printing pressesExpiredJul 29, 96Jun 02, 98[B41F]
5533591 Ladder rail capExpiredMar 07, 95Jul 09, 96[E06C]

Top Inventors for This Owner

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