| 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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| 01/23/1979 | US4135816 Method and apparatus for determining the total protein content or individual amino acids |
| 01/23/1979 | US4135399 Use of an expansion chamber for the production of representative particulate effluent from polymers |
| 01/23/1979 | CA1046789A1 Method and device for examining pulp for the presence of shives |
| 01/16/1979 | USRE29880 Apparatus for use in investigating specimens |
| 01/16/1979 | US4135100 Method and apparatus for detecting concentration of liquid |
| 01/16/1979 | US4134685 Flameless atomization |
| 01/16/1979 | US4134684 Repeat defect detector system |
| 01/16/1979 | US4134678 Automatic blood analysis apparatus and method |
| 01/16/1979 | CA1046605A1 Detection of faults in a predetermined area of a surface |
| 01/10/1979 | EP0000319A1 Device for generating a light signal characteristic of the refractive index of a fluidand and its use |
| 01/10/1979 | EP0000122A1 Cell for ultracentrifuge in interferometric optical analyses |
| 01/09/1979 | US4133873 Method of determining extracellular antigens and antibodies |
| 01/09/1979 | US4133639 Test article including a covalently attached diagnostic reagent and method |
| 01/09/1979 | CA1045847A1 Vehicle exhaust gas analysis system |
| 01/02/1979 | US4132585 Method of automatically monitoring and regenerating an etchant |
| 01/02/1979 | CA1045529A1 Non-dripping heat resistant dye penetrant and method of dye penetrant inspection |
| 01/02/1979 | CA1045411A1 Platelet aggregation monitoring device |
| 01/02/1979 | CA1045405A1 Exhaust gas analyzer having pressure and temperature compensation |
| 12/26/1978 | US4131803 Apparatus for detecting defects in sheet material |
| 12/26/1978 | US4131800 Method of and apparatus for differentiating between normal and malignant cells |
| 12/26/1978 | US4131427 Chromatography detector |
| 12/26/1978 | CA1045252A1 Inspection of masks and wafers by image dissection |
| 12/26/1978 | CA1044916A1 Method and apparatus for deriving oxygen association curves |
| 12/20/1978 | EP0000066A1 Determination of aromatic aminocarboxylic acids. |
| 12/19/1978 | US4130758 Device for determining gaseous components |
| 12/19/1978 | US4130396 Method for the quantitative analysis of Al-C- and Al-H- bonds in hydrocarbons |
| 12/19/1978 | CA1044483A1 Apparatus for determining the alcohol content of blood |
| 12/12/1978 | US4129781 Film thickness measuring apparatus and method |
| 12/12/1978 | US4129385 Photoacoustic sample cell |
| 12/12/1978 | CA1044349A1 Inspection machine memory |
| 12/12/1978 | CA1044038A1 Steam pipe flow detection apparatus with automatic test position change |
| 12/05/1978 | US4128339 Automatically-adjusting photometer |
| 12/05/1978 | US4128336 Spectroscopic apparatus and method |
| 12/05/1978 | CA1043883A1 Laser scanner flaw detection system using baseline follower signal processing |
| 11/28/1978 | US4127813 Method for balancing the sensitivity of two channels in a differential detection apparatus |
| 11/28/1978 | US4127780 Periodic sampling concentration indicator |
| 11/28/1978 | US4127773 Characterizing and identifying materials |
| 11/28/1978 | US4127771 Optical apparatus |
| 11/28/1978 | US4127330 Optical pressure jump relaxation detector |
| 11/28/1978 | CA1043463A1 Lumber inspection and optimization system |
| 11/28/1978 | CA1043445A1 Infra-red dynamic flame detector |
| 11/21/1978 | USRE29839 Optical inspection apparatus |
| 11/21/1978 | US4126790 Strobed smoke detector |
| 11/21/1978 | US4126418 Cuvette |
| 11/21/1978 | US4126396 Device for the non-dispersive optical determination of the concentration of gas and smoke components |
| 11/21/1978 | US4126393 High-sensitivity differential refractometer |
| 11/14/1978 | US4125828 Method and apparatus for automated classification and analysis of cells |
| 11/14/1978 | US4125779 Smoke detector |
| 11/14/1978 | US4125372 Method and device for testing liquids |
| 11/14/1978 | US4125328 Apparatus for measuring reflectivity and transmissivity of a specimen |
| 11/14/1978 | US4125327 Method and apparatus for simultaneously recording reaction times |
| 11/14/1978 | US4125225 Corrosion-free nebulizer |
| 11/07/1978 | US4124803 Surface finish monitor |
| 11/07/1978 | US4124484 Fluorescence, aluminum benzoate powder |
| 11/07/1978 | US4124303 Surface-gloss measuring device |
| 11/07/1978 | US4124302 Device for photometering a substance placed in a cylinder-shaped cell |
| 11/07/1978 | US4124301 Device for measuring light transmitted through a material |
| 11/07/1978 | US4124300 Method for automatic fabric inspection |
| 11/07/1978 | US4124112 Odd-shaped container indexing starwheel |
| 11/07/1978 | CA1042105A1 System for evaluating similar objects |
| 11/07/1978 | CA1041789A1 Gas measuring apparatus and method for the continuous measuring of the co2 content in respiratory gases |
| 10/31/1978 | US4123665 Arrangement for determining the density of natural fog in the atmosphere |
| 10/31/1978 | US4123352 Apparatus for detecting flaws in circular tablet |
| 10/31/1978 | US4123227 Gas measuring and warning; photoelectric cells, light barriers |
| 10/31/1978 | US4123173 Rotatable flexible cuvette arrays |
| 10/31/1978 | US4123172 Comparison type colorimeter |
| 10/31/1978 | US4123171 Density measuring device |
| 10/31/1978 | US4123170 Apparatus for detecting defects in patterns |
| 10/31/1978 | CA1041318A1 Electro-optical method and system for in situ measurements of particulate mass density |
| 10/31/1978 | CA1041317A1 Optical instrument for measuring concentrations of polluting gases on long and short geometrical paths |
| 10/24/1978 | US4122348 Method of and apparatus for classifying biological cells |
| 10/24/1978 | US4121907 Sample handling system |
| 10/24/1978 | US4121859 Pressure tight seal |
| 10/24/1978 | US4121714 Sterilizable package with tear-off indicators |
| 10/17/1978 | US4121110 Optically biased smoke detector |
| 10/17/1978 | US4121103 Caustic detection system |
| 10/17/1978 | US4120592 Multiplex optical analyzer apparatus |
| 10/17/1978 | US4120582 Light reflectivity and transmission testing apparatus and method |
| 10/10/1978 | US4119407 For holding liquid during spectrophotometric testing |
| 10/10/1978 | US4119404 Apparatus and method for sour gas analysis |
| 10/10/1978 | US4119381 Incubator and radiometric scanner |
| 10/10/1978 | CA1040078A1 Method for constituent analysis with thin-layer reactant mixture |
| 10/03/1978 | US4118625 Nephelometer having pulsed energy source |
| 10/03/1978 | US4118621 Photo electric biased photo diode operational amplifier |
| 10/03/1978 | US4118280 Automated microbial analyzer |
| 10/03/1978 | US4118192 Spectrophotometry |
| 10/03/1978 | US4118127 Method of detecting faults in moving webs of materials |
| 10/03/1978 | US4118124 Holographic shearing interferometer |
| 10/03/1978 | CA1039530A1 Photomultiplier tube gain regulating system |
| 09/26/1978 | US4117338 Automatic recording fluorometer/densitometer |
| 09/26/1978 | US4116832 Method and means for the automatic regulation of sludge extraction in sewage treatment apparatus |
| 09/26/1978 | US4116775 Machine and process for reading cards containing medical specimens |
| 09/26/1978 | US4116634 Void, flaw, and crack indicator for epoxy bonds |
| 09/26/1978 | US4116566 Line scanning device for detecting defects in webs of material |
| 09/26/1978 | US4116564 Apparatus for the study of plasmas |
| 09/26/1978 | US4116527 Device for concentrating light from a linear field on to a receiver |
| 09/26/1978 | CA1039346A1 Spark sources with electronic switching tubes |
| 09/26/1978 | CA1039079A1 Measuring the concentration of substances suspended in a liquid |
| 09/19/1978 | USRE29769 Method and apparatus for deriving oxygen association rate curves for blood samples |
| 09/19/1978 | US4115802 Optical-electronic microscopy apparatus and process |