with stationary measuring chambers having constant volume during measurement

Introduced: September 1968

Last revised: January 2006

Full Title

Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it > with stationary measuring chambers having constant volume during measurement

Classification Context

Section:: PHYSICS
Class:: MEASURING; TESTING
Subclass:: MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME

3 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

G01F 11/3 with supply and discharge valves of the lift or plug-lift type
G01F 11/36 with supply or discharge valves of the rectilinearly-moved slide type
G01F 11/42 with supply or discharge valves of the rotary or oscillatory type

Top Applicants

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

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