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Classification Resources
 
Class   374THERMAL MEASURING AND TESTING
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[List of Pre Grant Publications for class 374 subclass 1][List of Patents for class 374 subclass 1]1 THERMAL CALIBRATION SYSTEM
[List of Pre Grant Publications for class 374 subclass 4][List of Patents for class 374 subclass 4]4 LEAK OR FLAW DETECTION
[List of Pre Grant Publications for class 374 subclass 6][List of Patents for class 374 subclass 6]6 DISTANCE OR ANGLE
 [List of Pre Grant Publications for class 374 subclass 8][List of Patents for class 374 subclass 8]8 FLAMMABILITY TESTING
 [List of Pre Grant Publications for class 374 subclass 9][List of Patents for class 374 subclass 9]9 EMISSIVITY DETERMINATION
[List of Pre Grant Publications for class 374 subclass 10][List of Patents for class 374 subclass 10]10 DIFFERENTIAL THERMAL ANALYSIS
 [List of Pre Grant Publications for class 374 subclass 14][List of Patents for class 374 subclass 14]14 THERMAL GRAVIMETRIC ANALYSIS
 [List of Pre Grant Publications for class 374 subclass 15][List of Patents for class 374 subclass 15]15 BY APPLYING KNOWN THERMAL GRADIENT (E.G., INDICATION OF RESPONSE BY LOCATION)
[List of Pre Grant Publications for class 374 subclass 16][List of Patents for class 374 subclass 16]16 TRANSFORMATION POINT DETERMINATION (E.G., DEW POINT, BOILING POINT)
[List of Pre Grant Publications for class 374 subclass 29][List of Patents for class 374 subclass 29]29 HEAT FLUX MEASUREMENT
[List of Pre Grant Publications for class 374 subclass 31][List of Patents for class 374 subclass 31]31 CALORIMETRY
[List of Pre Grant Publications for class 374 subclass 43][List of Patents for class 374 subclass 43]43 DETERMINATION OF INHERENT THERMAL PROPERTY (E.G., HEAT FLOW COEFFICIENT)
[List of Pre Grant Publications for class 374 subclass 45][List of Patents for class 374 subclass 45]45 THERMAL TESTING OF A NONTHERMAL QUANTITY
[List of Pre Grant Publications for class 374 subclass 100][List of Patents for class 374 subclass 100]100 TEMPERATURE MEASUREMENT (E.G., THERMOMETER)
[List of Pre Grant Publications for class 374 subclass 101][List of Patents for class 374 subclass 101]101 Subclass 101 indent level is 1 Composite temperature-related paramenter
[List of Pre Grant Publications for class 374 subclass 117][List of Patents for class 374 subclass 117]117 Subclass 117 indent level is 1 By a vibratory effect (e.g., resonant frequency, acoustical)
[List of Pre Grant Publications for class 374 subclass 120][List of Patents for class 374 subclass 120]120 Subclass 120 indent level is 1 In spaced noncontact relationship to specimen
 [List of Pre Grant Publications for class 374 subclass 136][List of Patents for class 374 subclass 136]136 Subclass 136 indent level is 1 Geophysical (e.g., well bore, underwater)
 [List of Pre Grant Publications for class 374 subclass 137][List of Patents for class 374 subclass 137]137 Subclass 137 indent level is 1 Temperature distribution or profile
 [List of Pre Grant Publications for class 374 subclass 138][List of Patents for class 374 subclass 138]138 Subclass 138 indent level is 1 With fluid flow deflector
[List of Pre Grant Publications for class 374 subclass 139][List of Patents for class 374 subclass 139]139 Subclass 139 indent level is 1 Of molten metal
[List of Pre Grant Publications for class 374 subclass 141][List of Patents for class 374 subclass 141]141 Subclass 141 indent level is 1 Combined with diverse art device
 [List of Pre Grant Publications for class 374 subclass 158][List of Patents for class 374 subclass 158]158 Subclass 158 indent level is 1 With removable cover for sensor (e.g., disposable sheath)
[List of Pre Grant Publications for class 374 subclass 159][List of Patents for class 374 subclass 159]159 Subclass 159 indent level is 1 Nonelectrical, nonmagnetic, or nonmechanical temperature responsive property
[List of Pre Grant Publications for class 374 subclass 163][List of Patents for class 374 subclass 163]163 Subclass 163 indent level is 1 By electrical or magnetic heat sensor
 [List of Pre Grant Publications for class 374 subclass 186][List of Patents for class 374 subclass 186]186 Subclass 186 indent level is 1 With specified recording arrangement
[List of Pre Grant Publications for class 374 subclass 187][List of Patents for class 374 subclass 187]187 Subclass 187 indent level is 1 Mechanical (e.g., expansion or contraction of materials)
[List of Pre Grant Publications for class 374 subclass 208][List of Patents for class 374 subclass 208]208 HOUSING, SUPPORT, OR ADJUNCT
 [List of Pre Grant Publications for class 374 subclass 210][List of Patents for class 374 subclass 210]210 MISCELLANEOUS
 
E-SUBCLASSES
 
The following subclasses beginning with the letter E are E-subclasses. Each E-subclass corresponds in scope to a classification in a foreign classification system, for example, the European Classification system (ECLA). The foreign classification equivalent to an E-subclass is identified in the subclass definition. In addition to US documents classified in E-subclasses by US examiners, documents are regularly classified in E-subclasses according to the classification practices of any foreign Offices identified in parentheses at the end of the title. For example, "(EPO)" at the end of a title indicates both European and US patent documents, as classified by the EPO, are regularly added to the subclass. E-subclasses may contain subject matter outside the scope of this class.Consult their definitions, or the documents themselves to clarify or interpret titles.
 [List of Pre Grant Publications for class 374 subclass E19.001][List of Patents for class 374 subclass E19.001]E19.001 TESTING OR CALIBRATING CALORIMETERS (EPO)
[List of Pre Grant Publications for class 374 subclass E17.001][List of Patents for class 374 subclass E17.001]E17.001 MEASURING QUANTITY OF HEAT (EPO)
[List of Pre Grant Publications for class 374 subclass E15.001][List of Patents for class 374 subclass E15.001]E15.001 TESTING OR CALIBRATING OF THERMOMETERS (EPO)
[List of Pre Grant Publications for class 374 subclass E7.001][List of Patents for class 374 subclass E7.001]E7.001 MEASURING TEMPERATURE BASED ON THE USE OF ELECTRIC OR MAGNETIC ELEMENTS DIRECTLY SENSITIVE TO HEAT (EPO)
 [List of Pre Grant Publications for class 374 subclass E7.002][List of Patents for class 374 subclass E7.002]E7.002 Subclass E7.002 indent level is 1 Using pyroelectric elements (EPO)
 [List of Pre Grant Publications for class 374 subclass E7.003][List of Patents for class 374 subclass E7.003]E7.003 Subclass E7.003 indent level is 1 Using superconductive elements (EPO)
[List of Pre Grant Publications for class 374 subclass E7.004][List of Patents for class 374 subclass E7.004]E7.004 Subclass E7.004 indent level is 1 Using thermoelectric elements, e.g., thermocouples, etc. (EPO)
[List of Pre Grant Publications for class 374 subclass E7.018][List of Patents for class 374 subclass E7.018]E7.018 Subclass E7.018 indent level is 1 Using resistive elements (EPO)
 [List of Pre Grant Publications for class 374 subclass E7.034][List of Patents for class 374 subclass E7.034]E7.034 Subclass E7.034 indent level is 1 Using thermal noise of resistances or conductors (EPO)
[List of Pre Grant Publications for class 374 subclass E7.035][List of Patents for class 374 subclass E7.035]E7.035 Subclass E7.035 indent level is 1 Using semiconducting elements having PN junctions (EPO)
[List of Pre Grant Publications for class 374 subclass E7.037][List of Patents for class 374 subclass E7.037]E7.037 Subclass E7.037 indent level is 1 Using capacitative elements (EPO)
[List of Pre Grant Publications for class 374 subclass E7.039][List of Patents for class 374 subclass E7.039]E7.039 Subclass E7.039 indent level is 1 Using magnetic elements, e.g., magnets, coils, etc. (EPO)
 [List of Pre Grant Publications for class 374 subclass E7.041][List of Patents for class 374 subclass E7.041]E7.041 Subclass E7.041 indent level is 1 Using ionization of gases (EPO)
[List of Pre Grant Publications for class 374 subclass E7.042][List of Patents for class 374 subclass E7.042]E7.042 Subclass E7.042 indent level is 1 Circuits for reducing thermal inertia; Circuits for predicting the stationary value of temperature (EPO)
[List of Pre Grant Publications for class 374 subclass E3.001][List of Patents for class 374 subclass E3.001]E3.001 THERMOMETERS GIVING RESULTS OTHER THAN MOMENTARY VALUE OF TEMPERATURE (EPO)
 [List of Pre Grant Publications for class 374 subclass E9.001][List of Patents for class 374 subclass E9.001]E9.001 MEASURING TEMPERATURE BASED ON MOVEMENTS CAUSED BY REDISTRIBUTION OF WEIGHT, E.G., TILTING THERMOMETER, ETC. (EPO)
[List of Pre Grant Publications for class 374 subclass E5.001][List of Patents for class 374 subclass E5.001]E5.001 MEASURING TEMPERATURE BASED ON THE EXPANSION OR CONTRACTION OF A MATERIAL (EPO)
[List of Pre Grant Publications for class 374 subclass E5.002][List of Patents for class 374 subclass E5.002]E5.002 Subclass E5.002 indent level is 1 The material being a liquid (EPO)
[List of Pre Grant Publications for class 374 subclass E5.017][List of Patents for class 374 subclass E5.017]E5.017 Subclass E5.017 indent level is 1 The material being a gas (EPO)
[List of Pre Grant Publications for class 374 subclass E5.019][List of Patents for class 374 subclass E5.019]E5.019 Subclass E5.019 indent level is 1 The material being a fluid contained in a hollow body having parts which are deformable or displaceable under the pressure developed by the material (EPO)
[List of Pre Grant Publications for class 374 subclass E5.03][List of Patents for class 374 subclass E5.03]E5.03 Subclass E5.03 indent level is 1 The material being a solid (EPO)
[List of Pre Grant Publications for class 374 subclass E11.001][List of Patents for class 374 subclass E11.001]E11.001 MEASURING TEMPERATURE BASED UPON PHYSICAL OR CHEMICAL CHANGES NOT COVERED BY ANY OF THE PRECEDING SUBCLASSES (EPO)
 [List of Pre Grant Publications for class 374 subclass E11.002][List of Patents for class 374 subclass E11.002]E11.002 Subclass E11.002 indent level is 1 Using absorption or generation of gas, e.g., hydrogen, etc. (EPO)
 [List of Pre Grant Publications for class 374 subclass E11.003][List of Patents for class 374 subclass E11.003]E11.003 Subclass E11.003 indent level is 1 Using measurement of the effect of a material on microwaves or longer electromagnetic waves, e.g., measuring temperature via microwaves emitted by the object, etc. (EPO)
[List of Pre Grant Publications for class 374 subclass E11.004][List of Patents for class 374 subclass E11.004]E11.004 Subclass E11.004 indent level is 1 Using evaporation or sublimation, e.g., by observing boiling, etc. (EPO)
[List of Pre Grant Publications for class 374 subclass E11.006][List of Patents for class 374 subclass E11.006]E11.006 Subclass E11.006 indent level is 1 Using melting, freezing, or softening (EPO)
 [List of Pre Grant Publications for class 374 subclass E11.008][List of Patents for class 374 subclass E11.008]E11.008 Subclass E11.008 indent level is 1 Using sintering (EPO)
[List of Pre Grant Publications for class 374 subclass E11.009][List of Patents for class 374 subclass E11.009]E11.009 Subclass E11.009 indent level is 1 Using measurement of acoustic effects (EPO)
 [List of Pre Grant Publications for class 374 subclass E11.013][List of Patents for class 374 subclass E11.013]E11.013 Subclass E11.013 indent level is 1 Using measurements of density (EPO)
 [List of Pre Grant Publications for class 374 subclass E11.014][List of Patents for class 374 subclass E11.014]E11.014 Subclass E11.014 indent level is 1 Using measurement of the effect of a material on X-radiation, gamma radiation or particle radiation (EPO)
[List of Pre Grant Publications for class 374 subclass E11.015][List of Patents for class 374 subclass E11.015]E11.015 Subclass E11.015 indent level is 1 Using changes in transmission, scattering or fluorescence in optical fibers (EPO)
[List of Pre Grant Publications for class 374 subclass E11.018][List of Patents for class 374 subclass E11.018]E11.018 Subclass E11.018 indent level is 1 Using change of color or translucency (EPO)
 [List of Pre Grant Publications for class 374 subclass E11.024][List of Patents for class 374 subclass E11.024]E11.024 Subclass E11.024 indent level is 1 Using thermo-luminescent materials (EPO)
[List of Pre Grant Publications for class 374 subclass E13.001][List of Patents for class 374 subclass E13.001]E13.001 ADAPTATIONS OF THERMOMETERS FOR SPECIFIC PURPOSES (EPO)
[List of Pre Grant Publications for class 374 subclass E1.001][List of Patents for class 374 subclass E1.001]E1.001 DETAILS OF THERMOMETERS NOT SPECIALLY ADAPTED FOR PARTICULAR TYPES OF THERMOMETER (EPO)
[List of Pre Grant Publications for class 374 subclass E1.002][List of Patents for class 374 subclass E1.002]E1.002 Subclass E1.002 indent level is 1 Special applications of indicating or recording means, e.g., for remote indications, etc. (EPO)
[List of Pre Grant Publications for class 374 subclass E1.011][List of Patents for class 374 subclass E1.011]E1.011 Subclass E1.011 indent level is 1 Protective devices, e.g., casings, etc. (EPO)
[List of Pre Grant Publications for class 374 subclass E1.018][List of Patents for class 374 subclass E1.018]E1.018 Subclass E1.018 indent level is 1 Supports; Fastening devices; mounting thermometers in particular locations (EPO)
[List of Pre Grant Publications for class 374 subclass E1.021][List of Patents for class 374 subclass E1.021]E1.021 Subclass E1.021 indent level is 1 Special arrangements for conducting heat from the object to the sensitive element (EPO)
[List of Pre Grant Publications for class 374 subclass E1.023][List of Patents for class 374 subclass E1.023]E1.023 Subclass E1.023 indent level is 1 Compensating for effects of temperature changes other than those to be measured, e.g., changes in ambient temperature, etc. (EPO)
 [List of Pre Grant Publications for class 374 subclass E1.026][List of Patents for class 374 subclass E1.026]E1.026 Subclass E1.026 indent level is 1 Compensating for effects of pressure changes (EPO)
 
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