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PCE
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DIFF Subgroup
B25D 9/16

Valve arrangements therefor

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Portable percussive tools with fluid-pressure drive, e.g. having several percussive tool bits operated simultaneously > Control devices for the reciprocating piston > Valve arrangements therefor

CPC:

Portable percussive tools with fluid-pressure drive, , e.g. having several percussive tool bits operated simultaneously > Control devices for the reciprocating piston > Valve arrangements therefor

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

Child Classifications

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  • B25D 9/18 involving a piston-type slide valve IPC+CPC Available in IPC and CPC
  • B25D 9/20 involving a tubular-type slide valve IPC+CPC Available in IPC and CPC
  • B25D 9/22 involving a rotary-type slide valve IPC+CPC Available in IPC and CPC
  • B25D 9/24 involving a rocking-plate type valve IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

Class B25,2013–2023, worldwide · Source: EPO PATSTAT

  1. FANUC JP 3,700
  2. ROBERT BOSCH DE 3,293
  3. LG ELECTRONICS KR 2,871
  4. HILTI LI 2,424
  5. FANUC 2,406
  6. KAWASAKI HEAVY IND JP 2,103
  7. SAMSUNG ELECTRONICS COMPANY KR 1,854
  8. MILWAUKEE ELECTRIC TOOL CORPORATION US 1,825
  9. MAKITA CORPORATION JP 1,677
  10. SGCC(STATE GRID CORPORATION OF CHINA) 1,513