NIRSYSTEMS INCORPORATED, A CORP. OF DE

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 3203
 
  
 
G01J MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY 276
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 1204

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5477322 Spectrophotometer with light source in the form of a light emitting diode arrayOct 13, 94Dec 19, 95[G01J]
5426713 Fiber optic probe with truncated cone window block for infrared spectral analysis instrumentNov 10, 93Jun 20, 95[G01N]
5351322 Fiber optic probeOct 15, 93Sep 27, 94[G02B]
5278412 System for measuring the moisture content of powder and fiber optic probe thereforAug 18, 92Jan 11, 94[G01N]
5251006 Automatic spectrophotometer calibration systemMar 07, 91Oct 05, 93[G01J]
5132538 Measuring percentage of protein in whole grain samplesMay 24, 91Jul 21, 92[G01N]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5545376 Drying method and apparatus for infrared analysis of aqueous samplesExpiredAug 01, 90Aug 13, 96[B01L, F26B]
5166756 Powder fiber optic probe having angled end in NIR optical analyzing instrumentExpiredNov 28, 90Nov 24, 92[G01N]
5071250 Spectrophotometer with fan speed control for temperature regulationExpiredJan 03, 90Dec 10, 91[G01J]
5055684 System to reduce wave shift error in spectrophotometer caused by hot spots in the light sourceExpiredDec 06, 89Oct 08, 91[G01J]
4997280 Spectrophotometric instrument with rapid scanning distortion correctionExpiredSep 27, 89Mar 05, 91[G01J]
4969739 Spectrometer with direct drive high speed oscillating gratingExpiredJan 09, 89Nov 13, 90[G01J]
4963745 Octane measuring process and deviceExpiredSep 01, 89Oct 16, 90[G01N]
4766551 Method of comparing spectra to identify similar materialsExpiredSep 22, 86Aug 23, 88[G06F]
4738535 Optical instrument employing fiber optics to direct light through tilting filter wheelExpiredJul 22, 86Apr 19, 88[G01J]
4737034 Rectangular impinging beamExpiredFeb 20, 81Apr 12, 88[G01J]
4602243 Analog-to-digital conversion and averaging system for an optical analyzing instrumentExpiredApr 27, 83Jul 22, 86[H03K, G01J]
4580901 Fluid sample cellExpiredOct 31, 83Apr 08, 86[G01N]
4566791 Fluid sample cell comprising Fresnel sectorsExpiredOct 31, 83Jan 28, 86[G01N]
4538908 Particulate sample analyzing instrument employing vibration to compact the sampleExpiredSep 23, 82Sep 03, 85[G01J, G01N]
4443108 Optical analyzing instrument with equal wavelength increment indexingExpiredMar 30, 81Apr 17, 84[G01J]
4422760 Optical analyzing instrument having vibrating troughExpiredFeb 20, 81Dec 27, 83[G01N]
4400086 Instrument for grinding and analyzing material in ground stateExpiredJun 04, 79Aug 23, 83[G01N]
4285596 Holographic diffraction grating system for rapid scan spectral analysisExpiredAug 16, 77Aug 25, 81[G01J]
4264205 Rapid scan spectral analysis system utilizing higher order spectral reflections of holographic diffraction gratingsExpiredSep 07, 78Apr 28, 81[G01J]
4260262 Grain quality analyzerExpiredNov 28, 78Apr 07, 81[G01N]

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