CPC Subgroup Additional Only
G01N 2291/042 Wave modes
Full Title
Indexing codes associated with group G01N29/00 > Wave modes and trajectories > Wave modes
7 direct subcodes
Child Classifications
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- G01N 2291/0421 Longitudinal waves
- G01N 2291/0422 Shear waves, transverse waves, horizontally polarised waves
- G01N 2291/0423 Surface waves, e.g. Rayleigh waves, Love waves
- G01N 2291/0425 Parallel to the surface, e.g. creep waves
- G01N 2291/0426 Bulk waves, e.g. quartz crystal microbalance, torsional waves
- G01N 2291/0427 Flexural waves, plate waves, e.g. Lamb waves, tuning fork, cantilever
- G01N 2291/0428 Mode conversion
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