Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
F01L 5/04

with cylindrical, sleeve, or part-annularly shaped valves

Introduced: September 1968

Title

Titles differ between systems:

IPC: with cylindrical, sleeve, or part-annularly-shaped valves

CPC: with cylindrical, sleeve, or part-annularly shaped valves

Full Title

Full titles differ between systems:

IPC:

Slide-valve gear or valve arrangements > with cylindrical, sleeve, or part-annularly-shaped valves

CPC:

Slide valve-gear or valve-arrangements (with pure rotary or oscillatory movement F01L7/00) > with cylindrical, sleeve, or part-annularly shaped valves

Of 2 combined children, 1 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

Navigate with arrow keys, Enter to open

  • F01L 5/045 CPC only CPC only

Top Applicants

Top Applicants (IPC)

Class F01,2013–2023, worldwide · Source: EPO PATSTAT

  1. GE (GENERAL ELECTRIC COMPANY) US 8,496
  2. UNITED TECHNOLOGIES CORPORATION (UTC) US 7,291
  3. SAFRAN AIRCRAFT ENGINES FR 5,503
  4. TOYOTA MOTOR CORPORATION 4,556
  5. SIEMENS DE 3,992
  6. HYUNDAI MOTOR COMPANY KR 3,929
  7. RAYTHEON TECHNOLOGIES CORPORATION US 3,534
  8. FORD GLOBAL TECHNOLOGIES US 3,407
  9. TOYOTA MOTOR CORPORATION JP 3,042
  10. WEICHAI POWER COMPANY 2,888

Top Applicants (CPC)

Class F01,2013–2023, worldwide · Source: EPO PATSTAT

  1. GE (GENERAL ELECTRIC COMPANY) US 9,989
  2. UNITED TECHNOLOGIES CORPORATION (UTC) US 8,110
  3. SAFRAN AIRCRAFT ENGINES FR 6,248
  4. HYUNDAI MOTOR COMPANY KR 4,530
  5. SIEMENS DE 4,461
  6. FORD GLOBAL TECHNOLOGIES US 4,029
  7. RAYTHEON TECHNOLOGIES CORPORATION US 3,947
  8. TOYOTA MOTOR CORPORATION JP 3,734
  9. GE (GENERAL ELECTRIC COMPANY) 3,415
  10. SCHAEFFLER TECHNOLOGIES & COMPANY DE 3,063