with armatures

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Magnets > Electromagnets; Actuators including electromagnets > with armatures

CPC:

Magnets (superconducting magnets H01F6/00; for separation of solid materials or fluids B03C1/00; for bench or like work-holders B23B31/28, B23Q3/00; work-holding devices B25B11/00; lifting magnets B66C1/00; ; for electric meters G01R; for relays H01H; ; for dynamo-electric machines H02K) > Electromagnets; Actuators including electromagnets > with armatures

Of 12 combined children, 10 exist in both systems.

2 codes are CPC-only extensions.

4 shared codes have differing titles between IPC and CPC.

Child Classifications

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H01F 7/081 +3 CPC CPC only CPC only
H01F 7/088 CPC only CPC only
H01F 7/10 specially adapted for alternating current IPC+CPC Available in IPC and CPC
H01F 7/121 Guiding or setting position of armatures, e.g. retaining armatures in their end position since 1995 IPC+CPC Available in IPC and CPC
H01F 7/126 Supporting or mounting since 1995 IPC+CPC Available in IPC and CPC
H01F 7/127 Assembling since 1995 IPC+CPC Available in IPC and CPC
H01F 7/128 Encapsulating, encasing or sealing since 1995 IPC+CPC Available in IPC and CPC
H01F 7/13 characterised by pulling-force characteristics IPC+CPC Available in IPC and CPC
H01F 7/14 Pivoting armatures (H01F7/17 takes precedence) +1 CPC IPC+CPC Available in IPC and CPC
H01F 7/16 Rectilinearly-movable armatures (H01F7/17 takes precedence) +8 CPC IPC+CPC Available in IPC and CPC
H01F 7/17 Pivoting and rectilinearly-movable armatures since 1995 IPC+CPC Available in IPC and CPC
H01F 7/18 Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings +7 CPC IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class H01,2013–2023, worldwide · Source: EPO PATSTAT

TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 43,574
SAMSUNG ELECTRONICS COMPANY KR 42,206
LG CHEM KR 21,383
APPLIED MATERIALS US 20,441
LG ENERGY SOLUTION KR 20,279
SAMSUNG DISPLAY KR 19,725
CHINESE ACADEMY OF SCIENCES 19,400
TOYOTA MOTOR CORPORATION 18,819
SGCC(STATE GRID CORPORATION OF CHINA) 18,082
TOKYO ELECTRON JP 17,634

Top Applicants (CPC)

Class H01,2013–2023, worldwide · Source: EPO PATSTAT

SAMSUNG ELECTRONICS COMPANY KR 37,897
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 36,116
APPLIED MATERIALS US 21,640
LG ENERGY SOLUTION KR 20,770
LG CHEM KR 19,835
TOKYO ELECTRON JP 18,519
ROBERT BOSCH DE 14,595
INTEL CORPORATION US 13,580
MURATA MANUFACTURING COMPANY JP 12,151
SAMSUNG SDI COMPANY KR 12,080