Screw mechanisms (with automatic reversal F16H25/12)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Screw mechanisms

CPC: Screw mechanisms (with automatic reversal F16H25/12)

Full Title

Full titles differ between systems:

IPC:

Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms > for conveying or interconverting oscillating or reciprocating motions > Screw mechanisms

CPC:

Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms > for conveying or interconverting oscillating or reciprocating motions > Screw mechanisms (with automatic reversal F16H25/12)

CPC subdivides this area 9x more granularly than IPC with 16 additional codes.

16 codes are CPC-only extensions.

Note: 9 CPC extensions are marked as secondary classification only.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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F16H 2025/2028 2nd only CPC only CPC only
F16H 2025/2031 2nd only +1 CPC CPC only CPC only
F16H 2025/2037 2nd only CPC only CPC only
F16H 2025/204 2nd only CPC only CPC only
F16H 2025/2043 2nd only CPC only CPC only
F16H 2025/2046 2nd only CPC only CPC only
F16H 2025/2053 2nd only CPC only CPC only
F16H 2025/2059 2nd only CPC only CPC only
F16H 2025/2062 2nd only +10 CPC CPC only CPC only
F16H 25/2003 +3 CPC CPC only CPC only
F16H 25/2015 CPC only CPC only
F16H 25/2018 CPC only CPC only
F16H 25/2021 CPC only CPC only
F16H 25/2025 CPC only CPC only
F16H 25/205 CPC only CPC only
F16H 25/2056 CPC only CPC only
F16H 25/22 with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members +3 CPC IPC+CPC Available in IPC and CPC
F16H 25/24 Elements essential to such mechanisms, e.g. screws, nuts (F16H25/22 takes precedence) +9 CPC IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class F16,2013–2023, worldwide · Source: EPO PATSTAT

SCHAEFFLER TECHNOLOGIES & COMPANY DE 21,545
ZAHNRADFABRIK FRIEDRICHSHAFEN DE 9,446
TOYOTA MOTOR CORPORATION 7,215
HYUNDAI MOTOR COMPANY KR 6,846
ROBERT BOSCH DE 6,106
NTN CORPORATION 5,305
SKF SE 4,219
KIA MOTORS CORPORATION KR 3,852
NSK 3,850
HONDA MOTOR COMPANY 3,639

Top Applicants (CPC)

Class F16,2013–2023, worldwide · Source: EPO PATSTAT

SCHAEFFLER TECHNOLOGIES & COMPANY DE 22,817
ZAHNRADFABRIK FRIEDRICHSHAFEN DE 10,523
HYUNDAI MOTOR COMPANY KR 7,933
ROBERT BOSCH DE 7,059
KIA MOTORS CORPORATION KR 4,867
SKF SE 4,729
TOYOTA MOTOR CORPORATION JP 4,111
FORD GLOBAL TECHNOLOGIES US 3,838
GM GLOBAL TECHNOLOGY OPERATIONS US 3,575
TOYOTA MOTOR CORPORATION 3,499