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IPC Subgroup
G01N 11/1

by moving a body within the material

Introduced: September 1968

Last revised: January 2006

Full Title

Investigating flow properties of materials, e.g. viscosity or plasticity; Analysing materials by determining flow properties > by moving a body within the material

Classification Context

Section:
PHYSICS
Class:
MEASURING; TESTING
Subclass:
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

3 direct subcodes

Child Classifications

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  • G01N 11/12 by measuring rising or falling speed of the body; by measuring penetration of wedged gauges
  • G01N 11/14 by using rotary bodies, e.g. vane
  • G01N 11/16 by measuring damping effect upon oscillatory body

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