G01N 21 - Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light

Patents for G01N 21 - Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light (181,396)
11/1976
11/30/1976	US3994601 Dynamic calibration unit for a transmissometer
11/30/1976	US3994594 Cuvette and method of use
11/30/1976	US3994593 Apparatus for automatic quantitative analysis of blood serum specimens by cataphoretic process
11/30/1976	US3994591 Method and apparatus for selecting between differently colored features
11/30/1976	US3994590 Discrete frequency colorimeter
11/30/1976	US3994587 Densitometer
11/30/1976	US3994585 Opto-electrical measuring apparatus for determining the relative hemoglobin content of an illuminated solution by evaluating its light absorption
11/23/1976	US3993022 Apparatus for removing ferrous particulate matter from copy paper in an electrostatic copier
11/16/1976	US3992631 Fluorometric system, method and test article
11/16/1976	US3992571 Differential optical polarization detectors
11/16/1976	US3992319 Glycols
11/16/1976	US3992113 Photometer circuitry for the digital indication of the light absorption of a test sample
11/16/1976	US3992111 Apparatus for detecting defect locations at the surface of a moving reflecting material
11/16/1976	US3992109 Cyclic colorimetry method and apparatus
11/16/1976	US3992105 Method and apparatus for remote salinity sensing
11/16/1976	US3992104 Automatic polarization analyzer device
11/16/1976	US3992102 Photoelectric smoke detector with means for adjusting the amount of light projected into the detection region
11/16/1976	US3992100 Paper machine optical monitoring device with integral standardizing optical window
11/16/1976	US3992096 Detecting system
11/09/1976	US3990851 Laser and photodetector to measure light scattering
11/09/1976	US3990797 Diffraction monitoring of Rayleigh mode jets
11/09/1976	US3990795 Apparatus for monitoring suspended particles in a liquid
11/02/1976	US3989949 Liquid oxygen compatible biodegradable dye penetrant and method of dye
11/02/1976	US3989948 Dual beam optical system
11/02/1976	US3989707 Neuroleptic agents
11/02/1976	US3989387 Method and apparatus for detecting optical defects in transparent sheets
11/02/1976	US3989386 Automated inspection apparatus and method
11/02/1976	US3989383 Reaction detection system
11/02/1976	US3989382 Platelet aggregation monitoring device
11/02/1976	US3989381 Optical chamber with spherical reflective portion and apparatus employing same
11/02/1976	US3989380 Apparatus for detecting flaws in transparent containers
11/02/1976	US3989379 Apparatus for the spectroscopical examination of light transmitting objects such as precious stones
11/02/1976	US3988924 Method of regenerating an inspection penetrant solvent
10/1976
10/26/1976	US3988591 Photometric method for the quantitative determination of a material or substance in an analysis substance and photoelectric photometer for the performance of the aforesaid method
10/26/1976	US3988590 Photomultiplier tube gain regulating system
10/26/1976	US3988530 Automatic defect-detecting method and apparatus
10/26/1976	US3988068 Method and apparatus for detecting cosmetic defects in opthalmic lenses
10/26/1976	US3988067 Automatic polarization analyzing device
10/19/1976	US3987363 Apparatus for testing thin layers of bubble domain material for defects
10/19/1976	US3987304 Infrared absorption spectroscopy employing an optoacoustic cell for monitoring flowing streams
10/19/1976	US3987303 Medical-analytical gas detector
10/19/1976	US3987301 Light collection apparatus
10/19/1976	US3986778 Spectrophotometer sample holder
10/19/1976	US3986769 Vapor density dependent optical filter
10/12/1976	US3986037 Yarn detector with a self-calibrating circuit
10/12/1976	US3986023 Device for measuring optical characteristics of the atmosphere of an airfield
10/12/1976	US3985454 Window defect planar mapping technique
10/12/1976	US3985453 Light scattering type smoke detector
10/12/1976	US3985452 Arrangement for determining visibility in the glide path of an aircraft
10/12/1976	US3985447 Measurement of thin films by polarized light
10/12/1976	US3985441 Multi-channel spectral analyzer for liquid chromatographic separations
10/05/1976	US3984772 Signal peak detection arrangement
10/05/1976	US3984688 Monitor for detection of chemiluminescent reactions
10/05/1976	US3984190 Simultaneous transmission of periodic spectral components by plural interferometric means
10/05/1976	US3984189 Method and apparatus for detecting defects in a surface regardless of surface finish
10/05/1976	US3984008 Apparatus for automatizing flaw detection
10/05/1976	US3983741 Method and apparatus for locating defective fuel rods in a reactor fuel assembly
09/1976
09/28/1976	USRE28984 Article inspection by successively televised images
09/28/1976	US3983507 Tunable laser systems and method
09/28/1976	US3983390 Device for measuring angular deviation of a light beam by use of gratings
09/28/1976	US3983006 Method for determining minimum inhibitory concentration of antibiotic
09/28/1976	US3982838 Compact fast analyzer of rotary cuvette type
09/28/1976	US3982834 Device for atomization of a sample
09/21/1976	US3982130 Ultraviolet wavelength smoke detector
09/21/1976	US3981820 Silica sol containing fluorescent dye
09/21/1976	US3981594 Optical absorption cell with magnetic stirring
09/21/1976	US3981585 Molecular cavity analysis-filter cavity
09/21/1976	US3981579 Apparatus for selecting originals for copying on the basis of image sharpness
09/21/1976	US3981200 Method of automatically transferring and injecting a liquid sample
09/21/1976	US3981185 Postemulsifiable dye penetrant system and method for using same
09/14/1976	US3980891 Method and apparatus for a rotary scanner flaw detection system
09/14/1976	US3980890 Optical thickness detecting and comparing method and apparatus
09/14/1976	US3980884 Process and apparatus for determining the concentration of a suspension
09/14/1976	US3980882 Methods and apparatus for the chemical analysis of flowing materials
09/14/1976	US3980437 Urine, color change
09/14/1976	US3980434 Thin layer chromatography, fluorescence
09/07/1976	US3979596 Coronametric instrument for aerosol measurements
09/07/1976	US3979589 Method and system for the infrared analysis of gases
09/07/1976	US3979325 Windowless cryostatic device for low-temperature spectrometry
09/07/1976	US3979184 Proteins
09/07/1976	US3979181 Tape transport for luminescent reaction testing
09/07/1976	US3979162 Apparatus and method for atomic spectroscopy
09/07/1976	US3978717 Inhibited pre-wash stripper composition for water-washable inspection penetrants
08/1976
08/31/1976	US3977944 Enzyme-kinetic determination of the concentration of a substrate
08/31/1976	US3977831 Ozone, nitrogen dioxide, carbon monoxide
08/31/1976	US3977790 Apparatus for measuring the density of a contained liquid, by utilizing the angular displacement of the limiting angle at total reflection
08/24/1976	US3976891 Photoelectric detector for smoke or the like
08/24/1976	US3976884 Method for remote monitoring of gaseous products
08/24/1976	US3976883 Infrared analyzer
08/24/1976	US3976384 Method and apparatus for detecting timber defects
08/24/1976	US3976383 Visual method of locating faults in printed circuit boards
08/24/1976	US3976380 Holographic arrangement for testing materials without destroying same
08/24/1976	US3976369 Alpha meter attachment for underwater optical systems
08/17/1976	US3975727 Automated calibration and standardization apparatus
08/17/1976	US3975644 Flaw detecting method and apparatus
08/17/1976	US3975634 Water washable dye penetrant composition and method utilizing same
08/17/1976	US3975238 Method and apparatus for detecting molecules in solutions
08/17/1976	US3975177 System for preventing cracking of glass ribbon in plate manufacturing
08/17/1976	US3975160 Colorimetric analyzer
08/17/1976	US3975159 Method of and apparatus for determining the ozone contents of gas mixtures

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