CPC Subgroup Additional Only
G01N 2291/04 Wave modes and trajectories
Full Title
Indexing codes associated with group G01N29/00 > Wave modes and trajectories
10 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- G01N 2291/042 Wave modes
- G01N 2291/043 Complex trajectories
- G01N 2291/044 Internal reflections (echoes), e.g. on walls or defects
- G01N 2291/045 External reflections, e.g. on reflectors
- G01N 2291/048 Transmission, i.e. analysed material between transmitter and receiver
- G01N 2291/051 Perpendicular incidence, perpendicular propagation
- G01N 2291/052 Perpendicular incidence, angular propagation
- G01N 2291/055 Angular incidence, perpendicular propagation
- G01N 2291/056 Angular incidence, angular propagation
- G01N 2291/057 Angular incidence, parallel to surface propagation
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