| 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) |
|---|
| 09/27/1977 | US4050898 Detection of analyte dissolved in aqueous proteinaceous liquid |
| 09/20/1977 | US4049649 Pyridine-containing indicator dye |
| 09/20/1977 | US4049382 Total residual chlorine |
| 09/20/1977 | US4049134 Movable ladle in a pressurized conduct for transporting specimens to a combustion chamber |
| 09/13/1977 | US4048022 Thiolphosphonate |
| 09/06/1977 | US4046514 Test device and method for determining a component in a sample |
| 09/06/1977 | US4046513 Printed reagent test devices and method of making same |
| 09/06/1977 | US4046510 Method and an apparatus for determining the inorganic carbon content of a liquid |
| 08/30/1977 | US4045429 Treatment of ulcerative colitis |
| 08/23/1977 | US4043934 Catalyst and method for oxidizing reducing gases |
| 08/23/1977 | US4043871 Enzymatic substrate composition adsorbed on a carrier |
| 08/16/1977 | US4042332 Separation method of methane from other hydrocarbons than methane |
| 08/16/1977 | US4042331 Process for the determination of the boron contents of pure halogensilanes |
| 08/16/1977 | US4042326 Or bis-chloromethyl ether with improved sensitivity |
| 08/02/1977 | US4039627 Heat-curable pulverulent coating agent of a mixture of a copolymer containing glycidyl groups and an adduct of aliphatic dicarboxylic acid and 2,4,6-tris-(N',N",N'"-dimethylaminomethyl)-phenol |
| 08/02/1977 | US4039285 Single sample method for determination of lipoprotein concentrations in blood |
| 08/02/1977 | US4039284 Swimming pool water |
| 07/26/1977 | US4038485 Test composition, device, and method |
| 07/26/1977 | US4038160 Method of regenerating a chromium electroplating bath |
| 07/19/1977 | US4036589 Determining the concentration of a biocide additive in a liquid |
| 07/05/1977 | US4033720 Detection |
| 06/28/1977 | US4032297 Pollution monitoring apparatus |
| 06/21/1977 | US4030887 Catalysts |
| 06/21/1977 | US4030886 Of steroids, radioassay, selenium-75 |
| 06/14/1977 | US4029598 Non-bleeding indicator and dyes therefor |
| 06/14/1977 | US4029597 Non-bleeding indicators and dyes therefor used in pH determination process |
| 05/31/1977 | US4026667 Sulfide detection device |
| 05/31/1977 | US4026665 Method and apparatus for sulfur analysis |
| 05/24/1977 | US4025309 Carbon nitrogen test system |
| 05/17/1977 | US4023934 Color indicator apparatus for presence of oxygen |
| 05/17/1977 | US4023932 Reactor for analysis of polluted liquids |
| 05/17/1977 | US4023930 Method and apparatus for determining the concentration of a gas or gases in a gas mixture by sensing the coloration undergone by reagent test paper, or the like, in response to exposure to such gas or gases |
| 05/17/1977 | US4023929 Decomposition |
| 05/17/1977 | US4023905 Flash photolysis split beam spectrophotometer |
| 05/10/1977 | US4022578 Detector tube |
| 04/26/1977 | US4019865 Hydrogen sulfide |
| 04/26/1977 | US4019864 Method for measuring radioactivities of tritium and carbon-14 in sample air and apparatus for performing the same method |
| 04/26/1977 | US4019862 CO2 measurement and reagents therefor |
| 04/26/1977 | US4019861 Method and apparatus for measurement of CO2 and chloride in body fluids |
| 04/26/1977 | US4019860 Analytical reagent for cyanide |
| 04/19/1977 | US4018846 Method for continuously controlling the water content of sulfuric acid alkylation catalyst |
| 04/19/1977 | US4018565 Automatic process titration system |
| 04/19/1977 | US4018562 Oxidation to nitric oxide, reaction with ozone |
| 04/12/1977 | US4017404 Apparatus for low temperature ashing using radio frequency excited gas plasma |
| 04/12/1977 | US4017260 Oxidation, chemi-luminescence photoelectrically detected |
| 04/05/1977 | US4016293 Adsorbed on a support, cheese whey |
| 04/05/1977 | US4015937 Process for detecting the completion of the sterilizing treatment using a color changing indicator composition |
| 04/05/1977 | US4015462 Device and method for the determination of the specific gravity or osmolality of a liquid |
| 03/29/1977 | US4015121 Catalsimeter with time measuring circuitry for determining reactant concentration level |
| 03/22/1977 | US4013416 Diagnostic means for the detection of protein in body fluids |
| 03/22/1977 | US4013414 Indicator dye |
| 03/22/1977 | US4013412 Method for judging purity of purified zinc sulphate solution used for electrolytic production of zinc |
| 03/15/1977 | US4012405 Production of ethyl chlorothioformate |
| 03/15/1977 | US4012197 Titration apparatus and method therefor |
| 02/22/1977 | US4009390 Process for measuring tenderness of cooked meat |
| 02/22/1977 | US4009004 Acid, molybdate ion, surfactant |
| 02/22/1977 | US4009003 Method for determining suitability of triorganophosphorus ligands for use in hydroformylation processes |
| 02/08/1977 | US4007105 Electrode module for titration apparatus |
| 02/08/1977 | US4007010 Blister plane apparatus for testing samples of fluid |
| 02/08/1977 | US4007009 Chemical analysis of ions incorporated in lattices using coherent excitation sources |
| 02/01/1977 | US4005983 Method and apparatus for colorimetric analysis |
| 01/25/1977 | US4005132 Borylation, dehydration |
| 01/18/1977 | US4003709 Visual spoilage indicator for food containers |
| 01/18/1977 | US4003706 Method and reagents for the detection, estimation and quantitative determination of nitrate ions |
| 01/18/1977 | US4003383 Apparatus for locally irradiating a part of a living body |
| 01/11/1977 | US4002428 Deductive method for measuring ion concentration electrically |
| 12/28/1976 | US3999946 Conjugated acetylene group containing compound for use on perishable foods |
| 12/14/1976 | US3997644 Blending polyethylene with a thermoplastic resin |
| 12/14/1976 | US3997416 Method and apparatus for analyzing gaseous mixtures |
| 12/07/1976 | US3996339 Reduction of nitrogen dioxide to nitrogen monoxide with ferrous sulfate |
| 12/07/1976 | US3996007 Time-temperature integrating indicator |
| 12/07/1976 | US3996005 Detection and measurement of NO2 and O3 |
| 12/07/1976 | US3996004 Measuring nitrate and nitrite compound content in a sample |
| 12/07/1976 | US3996002 Method and apparatus for measuring the n-nitroso compound content of a sample |
| 11/30/1976 | US3994688 Reacting l-lysine with a g-formyl-pyridine derivative |
| 11/16/1976 | US3992515 Composition for indicating and method of removing dental undercuts and the like |
| 11/16/1976 | US3992294 Ureaphosphonates |
| 11/16/1976 | US3992154 Ethylene oxide sterilization indicator |
| 11/16/1976 | US3992151 Method for determining aluminum halide solution concentrations |
| 11/16/1976 | US3992149 Colorimetric method for the analysis of residual anionic or cationic surfactants |
| 11/02/1976 | US3989707 Neuroleptic agents |
| 10/26/1976 | US3987661 Instrument for testing flammability |
| 10/19/1976 | US3986833 Test composition, device, and method for the detection of peroxidatively active substances |
| 10/12/1976 | US3985505 Combustion system |
| 10/12/1976 | US3985017 Gaseous contaminate dosimeter and method |
| 09/21/1976 | US3981683 Temperature responsive sterility indicator |
| 09/14/1976 | US3980435 Method for controllng boric acid concentration in an aqueous stream |
| 09/14/1976 | US3980433 Hydroxylamine, carbodiimide to form hydroxamic acid |
| 09/07/1976 | US3979503 Tritium |
| 09/07/1976 | US3979262 Compositions and methods for the determination of oxidizing agents |
| 09/07/1976 | US3979182 Chemical detection of nitrogen containing compounds |
| 08/31/1976 | US3977945 For perishable foods |
| 08/31/1976 | US3977836 Nitrogen oxides |
| 08/31/1976 | US3977831 Ozone, nitrogen dioxide, carbon monoxide |
| 08/31/1976 | US3977830 Silver nitrite reactant for measuring SO2 |
| 08/24/1976 | US3976428 Of a corrosion inhibitor, lithium salt, spectroscopic |
| 08/17/1976 | US3975398 9-Substituted 3-aminocarbazole compounds |
| 08/17/1976 | US3975155 Quantitative method for detecting 3-isothiazolones |
| 08/10/1976 | US3973914 Apparatus for the determination of nitrogen oxides in air |
| 08/10/1976 | US3973910 Method of measuring the N-nitrosoamine content of a sample |