| Patents for G01N 31 - Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroups; Apparatus specially adapted for such methods (18,554) |
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| 12/12/1978 | CA1044041A1 Organic carbon analyzer system |
| 12/05/1978 | US4128508 Color change perfume systems |
| 12/05/1978 | CA1043677A1 Stable colored reference standard for enzymatic determination |
| 11/21/1978 | US4126417 Means for testing and treatment of soil in which a plant is growing |
| 11/14/1978 | US4125376 Method for detecting water pollutants |
| 11/14/1978 | US4125373 Oxidation with trisodium paraperiodate, condensing formed formaldehyde with 3-methyl-2-benzothiozilinone hydrazone hydrochloride, and adding ferric chloride |
| 11/14/1978 | US4125372 Method and device for testing liquids |
| 10/31/1978 | CA1041423A1 Composition for assaying for biologically active molecules |
| 10/24/1978 | US4122343 Method to generate correlative data from various products of thermal degradation of biological specimens |
| 10/24/1978 | US4121922 Method and apparatus for measuring percentage reduction in a metal ore reduction reactor |
| 10/17/1978 | US4120755 Kinetic method for determination of glucose concentrations with glucose dehydrogenase |
| 10/17/1978 | US4120660 Heat treatment with inert gas, then oxygen |
| 10/17/1978 | US4120659 Sulfur analysis |
| 10/17/1978 | US4120657 Accuracy and speed |
| 10/10/1978 | US4119659 Production of ethyl chlorothioformate |
| 10/10/1978 | US4119405 Test means and method for interference resistant determination of oxidizing substances |
| 10/10/1978 | CA1040083A1 Method for the determination of total carbon in aqueous solutions |
| 10/03/1978 | US4118575 Derivatives of para-guanidino-L-phenylalanine and methods of preparing them |
| 10/03/1978 | US4118193 Methane analyzer using ozone |
| 09/26/1978 | CA1039184A1 Solid phase radioimmunoassay of digoxin |
| 09/26/1978 | CA1039165A1 Method for determining aluminum halide solution concentrations |
| 09/26/1978 | CA1039164A1 Fluorite staining |
| 09/26/1978 | CA1039162A1 Water washable dye penetrant composition and method utilizing same |
| 09/19/1978 | US4115067 Air pollution |
| 09/19/1978 | US4115065 Competitive radioassay |
| 09/12/1978 | US4113383 Method and apparatus for solute transfer |
| 09/12/1978 | CA1038272A1 Sunburn dosimeter |
| 09/05/1978 | US4112226 Process for removing non-fluorescent triazine derivative impurities from fluorescent agents |
| 09/05/1978 | US4111554 Process for the specific quantitative detection of sulfur compounds and apparatus for carrying out this process |
| 09/05/1978 | CA1037735A1 Catalasimeter |
| 08/29/1978 | US4110378 Method of reduction employing resin adsorbents |
| 08/22/1978 | US4108604 Flowing over ion exchange resin coated with a fluorescent dye |
| 08/15/1978 | US4106908 Method for the determination of the organic carbon content in mineral-containing materials |
| 08/08/1978 | US4105800 Immobilized enzyme method to assess fish quality |
| 08/08/1978 | US4105522 Glucose level test apparatus |
| 08/08/1978 | US4105508 Method and device for analysis of a mixture of hydrochloric acid and organochlorine compounds contained in gases derived in particular from the incineration of organochlorine compounds |
| 08/08/1978 | US4105408 Urea assay |
| 08/01/1978 | US4104028 Method of titrating liquor |
| 08/01/1978 | US4104025 Separation of desired component by centrifuging |
| 07/25/1978 | US4102814 Copper and porous diatomaceous earth |
| 07/18/1978 | US4101276 Method and apparatus for signalling the introduction of chemical reaction components into a chemical analyzing system |
| 07/11/1978 | US4099923 Automatic catalytic screening unit |
| 07/04/1978 | US4098575 Peroxide value determining test for oils and fats |
| 07/04/1978 | US4098120 Humidity indicating method and device |
| 06/27/1978 | US4096867 Apparatus for pyrolyzing tobacco |
| 06/20/1978 | US4095951 Organic carbon analyzer system |
| 06/20/1978 | US4095949 Preparation-combustion system and emission spectrometer |
| 06/13/1978 | US4094642 Indicator for ethylene oxide gas |
| 06/13/1978 | US4094640 Method for processing biomaterials |
| 05/30/1978 | US4092123 Colorimetric indicator for hazardous gases |
| 05/30/1978 | US4092121 Titration apparatus |
| 05/30/1978 | US4092119 Environmental quality indicator |
| 05/30/1978 | US4092115 Method, device and test reagent for detecting free available chlorine in aqueous fluids |
| 05/23/1978 | US4090959 Process for sequestering metal ions |
| 05/16/1978 | US4090129 Stopped-flow reaction apparatus utilized in conjunction with continuous-flow resistive-particle counting apparatus |
| 05/16/1978 | US4089747 Oxidation of dye-providing materials, a sulfonyl hydrazone and a coupler or a triarylimidazole |
| 05/02/1978 | US4087249 Pyrolysis apparatus for analysis |
| 04/25/1978 | US4086061 Temperature control system for chemical reaction cell |
| 04/11/1978 | US4083692 Detection and estimation of microquantities of alkylating agents |
| 04/11/1978 | US4083226 Portable explosion-proof gas detector |
| 03/28/1978 | US4081345 Conversion to ammonium ions, basification, oxidation to nitrogen by hypobromite ions, electrolytically generated from bromide ions, measurement of current |
| 03/21/1978 | US4080170 Alcohol retainer cartridge and method for using same |
| 03/21/1978 | US4080169 Determination method for mercury in organic compounds |
| 03/14/1978 | US4078894 Analyzer system with salt extractor |
| 03/14/1978 | US4078893 Catalyst system for the detection and elimination of hydrogen gas |
| 03/07/1978 | US4077776 Gas and gas-carried suspended matter indicator tube having fixing elements for reagent carriers |
| 03/07/1978 | US4077773 Method and apparatus for detection of monoalkylhalides |
| 02/21/1978 | US4075475 Programmed thermal degradation-mass spectrometry analysis method facilitating identification of a biological specimen |
| 02/21/1978 | US4074973 Method and apparatus for determining total oxygen demand of combustible materials in aqueous dispersion |
| 02/21/1978 | US4074972 Urea assay |
| 02/14/1978 | US4073822 Alkylation catalysts |
| 02/14/1978 | US4073698 Method and device for the detection and measurement of carbon monoxide in the presence of hydrogen |
| 01/31/1978 | US4071319 Contaminant detector |
| 01/24/1978 | US4070155 Apparatus for chromatographically analyzing a liquid sample |
| 01/24/1978 | US4070154 Method and apparatus for determining the alcohol content of fuels |
| 01/17/1978 | US4069017 Colorimetric assay for bilirubin |
| 01/03/1978 | US4066509 Detection of hydrolyzing enzymes |
| 01/03/1978 | US4066409 Oxidizing organic nitrogen compounds |
| 01/03/1978 | US4066403 Multilayer analytical element |
| 01/03/1978 | US4066402 Thermal conductivity gas chromatograph of nitrogen and carbon dioxide products |
| 12/27/1977 | US4065371 Electrochemical carbon meter |
| 12/27/1977 | US4065263 Analytical test strip apparatus |
| 12/20/1977 | US4063893 Dye stabilized trisodium phosphate cleaning solution |
| 12/20/1977 | US4063891 Method for determining the inorganic carbon content of aqueous liquids |
| 12/20/1977 | US4063452 Method and device for monitoring vapor concentration at a phase interface |
| 12/13/1977 | US4062876 Sensitive pH indicator |
| 12/13/1977 | US4062652 Reagent unit intended for microanalyses of standard type and device and method for its production |
| 12/13/1977 | US4062649 Phosphate |
| 12/06/1977 | US4061468 Indicator dye |
| 11/15/1977 | US4058373 Combustible gas-in-oil detector |
| 11/15/1977 | US4058366 Tracer, polysaccharide, hydrolysis to glucose, reaction with o-toluidine |
| 11/15/1977 | US4058365 Process for automatic titration |
| 11/08/1977 | US4057394 Test device and method for determining blood hemoglobin |
| 11/08/1977 | US4057393 Of gasoline streams |
| 10/25/1977 | US4055591 Phosphonomethyl compounds |
| 10/25/1977 | US4055259 Sample transport with rotary air interlock charging and discharging means |
| 10/18/1977 | US4054414 Gas chromatographic method for the multi-elemental microanalysis of organic materials |
| 10/11/1977 | US4053743 Method for controlling the ph and other concentration variables |
| 10/11/1977 | US4053433 Method of tagging with color-coded microparticles |
| 10/11/1977 | US4053281 Pyrolysis, scrubbing, measuring carbon dioxide content |