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IPC Subgroup
B25B 23/143

wherein the work-contacting component pivots or rotates relative to the handle when a selected torque is exceeded

Introduced: January 1985

Last revised: January 2006

Full Title

Details of, or accessories for, spanners, wrenches, screwdrivers > Arrangement of torque limiters or torque indicators in wrenches or screwdrivers > specially adapted for hand operated wrenches or screwdrivers > wherein the work-contacting component pivots or rotates relative to the handle when a selected torque is exceeded

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; HANDLES FOR HAND IMPLEMENTS; WORKSHOP EQUIPMENT; MANIPULATORS
Subclass:
TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING

1 direct subcode

Child Classifications

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  • B25B 23/144 having an electrical device activated by the pivotal or rotational movement which emits a signal when the selected torque is exceeded

Top Applicants

Top 10 applicants by patent filingsfor class B25, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SGCC(STATE GRID CORPORATION OF CHINA) 4,635
  2. FANUC JP 3,353
  3. ROBERT BOSCH DE 2,950
  4. LG ELECTRONICS KR 2,397
  5. HILTI LI 2,243
  6. FANUC 2,234
  7. SEIKO EPSON CORPORATION 2,131
  8. KAWASAKI HEAVY IND JP 1,940
  9. MAKITA CORPORATION 1,851
  10. SAMSUNG ELECTRONICS COMPANY KR 1,562