Cuvette constructions

Introduced: January 1980

Full Title

Full titles differ between systems:

IPC:

Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light > Arrangements or apparatus for facilitating the optical investigation > Cuvette constructions

CPC:

Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light (G01N3/00 - G01N19/00 take precedence) > Arrangements or apparatus for facilitating the optical investigation > Cuvette constructions

CPC subdivides this area 6x more granularly than IPC with 16 additional codes.

16 codes are CPC-only extensions.

Note: 12 CPC extensions are marked as secondary classification only.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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G01N 2021/0321 2nd only CPC only CPC only
G01N 2021/0325 2nd only +1 CPC CPC only CPC only
G01N 2021/0339 2nd only CPC only CPC only
G01N 2021/0342 2nd only CPC only CPC only
G01N 2021/0346 2nd only +1 CPC CPC only CPC only
G01N 2021/0357 2nd only CPC only CPC only
G01N 2021/036 2nd only CPC only CPC only
G01N 2021/0364 2nd only CPC only CPC only
G01N 2021/0367 2nd only +2 CPC CPC only CPC only
G01N 2021/0378 2nd only +1 CPC CPC only CPC only
G01N 2021/0385 2nd only CPC only CPC only
G01N 2021/0389 2nd only +2 CPC CPC only CPC only
G01N 21/0303 +1 CPC CPC only CPC only
G01N 21/031 +1 CPC CPC only CPC only
G01N 21/0317 CPC only CPC only
G01N 21/0332 +1 CPC CPC only CPC only
G01N 21/05 Flow-through cuvettes (G01N21/09 takes precedence; handling fluid samples G01N1/10) since 1980 +4 CPC IPC+CPC Available in IPC and CPC
G01N 21/07 Centrifugal type cuvettes (G01N21/09 takes precedence) since 1980 IPC+CPC Available in IPC and CPC
G01N 21/09 adapted to resist hostile environments or corrosive or abrasive materials since 1980 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

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