| 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) |
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| 08/17/1976 | US3975104 Convergent light illuminated flow cell for liquid chromatography |
| 08/17/1976 | US3975103 Photometric liquid analyzers for use in clinical or chemical laboratory analysis |
| 08/17/1976 | US3975097 Testing apparatus which measures index of refraction |
| 08/17/1976 | US3975084 Particle detecting system |
| 08/10/1976 | US3974378 Inspection system for reflective and transparent articles |
| 08/10/1976 | US3973914 Apparatus for the determination of nitrogen oxides in air |
| 08/10/1976 | US3973911 Fluorescence |
| 08/10/1976 | US3973909 Ph indicators |
| 08/10/1976 | US3973852 Method and apparatus for measuring particulate concentration in the atmosphere |
| 08/10/1976 | US3973849 Self-calibratable spectrum analyzer |
| 08/10/1976 | US3973848 Automatic gas analysis and purging system |
| 08/03/1976 | US3973167 Spark sources with electronic switching tubes |
| 08/03/1976 | US3973129 Fluorimetric apparatus and method for analysis of body fluid |
| 08/03/1976 | US3973123 Measuring transparency of gases, particularly the optical transmission of internal combustion engine exhaust gases |
| 08/03/1976 | US3972680 Differentially kinetic determination of metal ions |
| 08/03/1976 | US3972627 Apparatus for investigating fast chemical reactions by optical detection |
| 08/03/1976 | US3972625 Milk fat content-measuring apparatus |
| 08/03/1976 | US3972624 Process and apparatus for detecting longitudinal faults on moving webs of material |
| 08/03/1976 | US3972619 Method and apparatus for surface analysis |
| 08/03/1976 | US3972618 Interferometer for testing materials of different sizes |
| 08/03/1976 | US3972617 Spectrophotometer |
| 08/03/1976 | US3972616 Apparatus for detecting the defects of the mask pattern using spatial filtering |
| 07/27/1976 | US3971952 Method of detecting abnormal behavior of mammalian cells |
| 07/27/1976 | US3971951 Apparatus for measuring two different fluorescences of a sample |
| 07/27/1976 | US3971630 Photometric |
| 07/20/1976 | US3970857 Apparatus for web defect detection including a web swatch that contains a defect |
| 07/20/1976 | US3970430 Nitrogen oxide |
| 07/20/1976 | US3970394 Densitometer head with fiber optics |
| 07/20/1976 | US3970393 Automatic compensation for densitometer imbalance |
| 07/20/1976 | US3970392 Analog to digital to analog storage and retrieval for a plurality of photometric blanking values |
| 07/20/1976 | US3970387 Nondispersion, two beam, infrared gas analyzer |
| 07/13/1976 | US3969626 Method and apparatus for detecting total reduced sulfur |
| 07/13/1976 | US3969577 System for evaluating similar objects |
| 07/13/1976 | US3969227 Photoelectric inspection of transparent or translucent medicinal capsules |
| 07/13/1976 | US3969079 Dual channel photo-optical clot detection apparatus |
| 07/06/1976 | US3968379 Photocell smoke detector |
| 07/06/1976 | US3968370 Non-dispersive infrared gas analyzer |
| 07/06/1976 | US3968369 Non-dispersive infrared gas analysis device with triple layer receiver |
| 07/06/1976 | US3968367 Filter system for infrared analysis |
| 07/06/1976 | US3967933 Dual channel nitrogen oxides analyzer |
| 07/06/1976 | US3967902 Method and apparatus for investigating the conformation of optically active molecules by measuring parameters associated with their luminescence |
| 07/06/1976 | US3967901 Nephelometer having means semiautomatically cancelling components from scattering by particles smaller or larger than those of interest |
| 07/06/1976 | US3967492 Heat of interaction detector |
| 06/29/1976 | US3967113 Wavelength-corrected spectrofluorometer |
| 06/29/1976 | US3966333 Magnetic stirrer noise cancellation system |
| 06/29/1976 | US3966332 Method and apparatus for inspecting liquids in transparent containers |
| 06/29/1976 | US3966323 Apparatus for producing timing signal for photometric measurement |
| 06/29/1976 | US3966322 Device for use in producing a scanning beam of radiation and apparatus for use in investigating specimens |
| 06/29/1976 | US3965920 Installations for monitoring oil content |
| 06/22/1976 | US3965477 Automatic graphing apparatus |
| 06/22/1976 | US3965356 Apparatus for measuring a predetermined characteristic of a material using two or more wavelengths of radiation |
| 06/22/1976 | US3965350 Dye penetrant method for detecting flows |
| 06/22/1976 | US3964867 Reaction container |
| 06/22/1976 | US3964831 Visual color comparator with integral dual dip cells |
| 06/22/1976 | US3964830 Method for inspecting flaws of material |
| 06/15/1976 | US3963939 Analyzing gases by testing the optical characteristics of exhaust gases from internal combustion engines |
| 06/15/1976 | US3963928 Multiple chamber chemiluminescent analyzer |
| 06/15/1976 | US3963909 Method and apparatus for computation in a kinetic analyzer |
| 06/15/1976 | US3963354 Inspection of masks and wafers by image dissection |
| 06/15/1976 | US3963351 Multi-channel optical time-sharing apparatus having a rotating filter wheel with position-encoding means |
| 06/15/1976 | US3963350 Apparatus for selectively segmenting red and white blood corpuscles contained in blood smear |
| 06/15/1976 | US3963348 Device for detecting strain and foreign matters in glass container by a non-storage type pickup tube |
| 06/08/1976 | US3962581 Infra-red consistency meter |
| 06/08/1976 | US3962041 Method and apparatus for measuring the opacity of fluids |
| 06/08/1976 | US3962029 Method of controlling the amount of chemicals in liquids used within the cellulose industry and related industries |
| 06/08/1976 | US3961899 Disposable |
| 06/01/1976 | US3961187 Remote sensing of marine hydrocarbon seeps |
| 06/01/1976 | US3960593 Method of increasing the long-term stability of a measuring element of textile testers |
| 06/01/1976 | US3960497 Chemical analyzer with automatic calibration |
| 06/01/1976 | US3960449 Measurement of angular dependence of scattered light in a flowing stream |
| 05/25/1976 | US3959660 IR generator having ellipsoidal and paraboloidal reflectors |
| 05/25/1976 | US3959081 Rapid identification of bacteria using chemiluminescence |
| 05/25/1976 | US3958942 Analyzer for determination of double bonds |
| 05/25/1976 | US3958940 Method for the removal of penetrant |
| 05/25/1976 | US3958938 Bioluminescent sensor system |
| 05/25/1976 | US3958883 Radio frequency induced plasma excitation of optical emission spectroscopic samples |
| 05/18/1976 | US3958128 System for determining a transversal position of any defect in a traveling sheet material |
| 05/18/1976 | US3958127 Optical-electrical web inspection system |
| 05/18/1976 | US3958122 Exhaust gas analyzer having pressure and temperature compensation |
| 05/18/1976 | US3958119 Method and device for evaluating penetrants |
| 05/18/1976 | US3957375 Variable thickness double-refracting plate |
| 05/18/1976 | US3957374 Apparatus for obtaining samples of dusts for analysis by spectrochemical examination |
| 05/18/1976 | US3957373 Quantitative determination of elements in alloys |
| 05/18/1976 | US3957372 Vehicle exhaust gas analysis system |
| 05/11/1976 | US3956631 Process for non-destructive inspection |
| 05/11/1976 | US3956630 Fluorimetric coat weight measurement |
| 05/11/1976 | US3956201 Article of manufacture having thereon a stable reflective coating containing fluorinated aliphatic ring chain addition polymers |
| 05/11/1976 | US3955927 In gasoline, colorimetric, iodine, 4-(2-pyridylazo)-resorcinol disodium salt |
| 05/11/1976 | US3955914 Flame photometric detector employing premixed hydrogen and oxygen gases |
| 05/11/1976 | US3955890 Method of measuring the deformation capacity of microscopic objects, more particularly red blood corpuscles and a device for implementing the method |
| 05/04/1976 | USRE28803 Method and electronic control for the analyzation of serum chemistries |
| 05/04/1976 | USRE28801 Apparatus for evaluation of biological fluid |
| 05/04/1976 | USRE28800 Apparatus for evaluation of biological fluid |
| 05/04/1976 | US3954342 Optical device for monitoring clarity of a fluid |
| 05/04/1976 | US3954341 Liquid sample analyzer with improved optical characteristics |
| 05/04/1976 | US3954336 Chemical analysis method and apparatus |
| 04/27/1976 | US3953739 Method and apparatus for the continuous monitoring and control of cell size in a foam structure |
| 04/27/1976 | US3953734 Nulling device for detection of trace gases by NDIR absorption |
| 04/27/1976 | US3953359 Determination of phosphorus |
| 04/27/1976 | US3953136 Method and apparatus for automatically analyzing fluids |