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IPC Main Group
G01D 15/00

Component parts of recorders for measuring arrangements not specially adapted for a specific variable

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
PHYSICS
Class:
MEASURING; TESTING
Subclass:
MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; TRANSFERRING OR TRANSDUCING ARRANGEMENTS NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR

Related Keywords

STYLI for recording measured values

11 direct subcodes

Child Classifications

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  • G01D 15/1 Heated recording elements acting on heat-sensitive layers
  • G01D 15/12 Magnetic recording elements
  • G01D 15/14 Optical recording elements; Recording elements using X- or nuclear radiation
  • G01D 15/2 Recording elements for printing with ink or for printing by deformation or perforation of the recording surface, e.g. embossing
  • G01D 15/22 Chopper bars for bringing recording element into contact with recording surface
  • G01D 15/34 Recording surfaces

Top Applicants

Top 10 applicants by patent filingsfor class G01, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SGCC(STATE GRID CORPORATION OF CHINA) 41,447
  2. CHINESE ACADEMY OF SCIENCES 32,952
  3. ROBERT BOSCH DE 16,470
  4. SAMSUNG ELECTRONICS COMPANY KR 10,052
  5. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 9,573
  6. ZHEJIANG UNIVERSITY 9,529
  7. GUANGDONG POWER GRID CORPORATION 8,615
  8. TSINGHUA UNIVERSITY 7,805
  9. HALLIBURTON ENERGY SERVICES GROUP US 7,796
  10. QUALCOMM US 7,171