Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
IPC Subgroup
G01K 7/21

for modifying the output characteristic, e.g. linearising

Introduced: January 1995

Last revised: January 2006

Full Title

Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat > using resistive elements > the element being a linear resistance, e.g. platinum resistance thermometer > in a specially-adapted circuit, e.g. bridge circuit > for modifying the output characteristic, e.g. linearising

Classification Context

Section:
PHYSICS
Class:
MEASURING; TESTING
Subclass:
MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR

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