G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
Description
G01M covers apparatus and methods for evaluating the balance characteristics of rotating or stationary machines and structural systems, including vibration analysis, alignment measurement, and integrity assessment. This subclass encompasses balancing machines for rotors, wheels, and similar components, as well as testing equipment for detecting deviations from desired operational conditions. It includes structural load testing, durability assessment, and non-destructive examination methods applied to apparatus not specifically classified elsewhere in G01. Applications range from automotive and aerospace component verification to industrial machinery maintenance and safety validation.
Filing statistics
CPC subclass G01M recorded 184,975 patent applications worldwide between 2013 and 2023. Annual filings grew from 7,503 in 2013 to 23,727 in 2023 (+216%). The most active applicants in class G01 are CHINESE ACADEMY OF SCIENCES (21,460 applications), ROBERT BOSCH (17,801 applications) and SGCC(STATE GRID CORPORATION OF CHINA) (17,347 applications).
Source: EPO PATSTAT, worldwide filings
11 direct subcodes
Child Classifications
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- G01M 1/00 Testing static or dynamic balance of machines or structures
- G01M 10/00 Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
- G01M 11/00 Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M 13/00 Testing of machine parts
- G01M 15/00 Testing of engines
- G01M 17/00 Testing of vehicles (testing fluid tightness G01M3/00; testing elastic properties of bodies or chassis, e.g. torsion-testing, G01M5/00; testing alignment of vehicle headlight devices G01M11/06; testing of engines G01M15/00)
- G01M 3/00 Investigating fluid-tightness of structures
- G01M 5/00 Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings (G01M9/00 takes precedence)
- G01M 7/00 Vibration-testing of structures; Shock-testing of structures (G01M9/00 takes precedence)
- G01M 9/00 Aerodynamic testing; Arrangements in or on wind tunnels
- G01M 99/00 Subject matter not provided for in other groups of this subclass
Top Applicants
Top 10 applicants by patent filingsfor class G01, 2013–2023, worldwide · Source: EPO PATSTAT
- CHINESE ACADEMY OF SCIENCES 21,460
- ROBERT BOSCH DE 17,801
- SGCC(STATE GRID CORPORATION OF CHINA) 17,347
- SAMSUNG ELECTRONICS COMPANY KR 13,192
- QUALCOMM US 9,900
- HALLIBURTON ENERGY SERVICES GROUP US 9,742
- PHILIPS ELECTRONICS NL 7,249
- MITSUBISHI ELECTRIC CORPORATION JP 6,503
- ZHEJIANG UNIVERSITY 6,414
- DENSO CORPORATION JP 6,382