Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
IPC Subgroup
F01B 19/04

with tubular flexible members

Introduced: September 1968

Last revised: January 2006

Full Title

Positive-displacement machines or engines of flexible-wall type > with tubular flexible members

Classification Context

Section:
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
Subclass:
MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES

Filing statistics

IPC F01B 19/04 belongs to the parent subclass F01B, which recorded 5,561 patent applications worldwide between 2013 and 2023. Annual filings declined from 691 in 2013 to 295 in 2023 (-57%). The most active applicants in class F01 are GE (GENERAL ELECTRIC COMPANY) (8,496 applications), UNITED TECHNOLOGIES CORPORATION (UTC) (7,291 applications) and SAFRAN AIRCRAFT ENGINES (5,503 applications).

Source: EPO PATSTAT, worldwide filings

Top Applicants

Top 10 applicants by patent filingsfor 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