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| More topics under "G01N - Investigating or analysing materials by determining their chemical or physical properties" (1,062,154) |
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| G01N 1 - Sampling; Preparing specimens for investigation (74,036) | | G01N 11 - Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties (8,047) | | G01N 13 - Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects (3,700) | | G01N 15 - Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials (29,551) | | G01N 17 - Investigating resistance of materials to the weather, to corrosion, or to light (6,567) | | G01N 19 - Investigating materials by mechanical methods (7,267) | | G01N 21 - Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light (181,396) | | G01N 22 - Investigating or analysing materials by the use of microwaves (3,952) | | G01N 23 - Investigating or analysing materials by the use of wave or particle radiation not covered by group or , e.g. x-rays, neutrons (32,258) | | G01N 24 - Investigating or analysing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects (4,250) | | G01N 25 - Investigating or analysing materials by the use of thermal means (15,694) | | G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839) | | G01N 29 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object (28,925) | | G01N 3 - Investigating strength properties of solid materials by application of mechanical stress (30,941) | | G01N 30 - Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography (41,194) | | 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) | | G01N 33 - Investigating or analysing materials by specific methods not covered by groups (393,632) | | G01N 35 - Automatic analysis not limited to methods or materials provided for in any single one of groups; Handling materials therefor (38,677) | | G01N 37 - Details not covered by any other group of this subclass (18,300) | | G01N 5 - Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid (4,918) | | G01N 7 - Analysing materials by measuring the pressure or volume of a gas or vapour (3,762) | | G01N 9 - Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity (6,694) |
| Patents for G01N - Investigating or analysing materials by determining their chemical or physical properties (5,201) |
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| 02/10/1976 | US3937655 Method for preparing stable β-lactam-type-antibiotic susceptibility test discs |
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