IPC Subgroup
F02C 3/02 using exhaust-gas pressure in a pressure exchanger to compress combustion-air
Introduced: September 1968
Last revised: January 2006
Full Title
Gas-turbine plants characterised by the use of combustion products as the working fluid > using exhaust-gas pressure in a pressure exchanger to compress combustion-air
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- Subclass:
- GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
Filing statistics
IPC F02C 3/02 belongs to the parent subclass F02C, which recorded 69,246 patent applications worldwide between 2013 and 2023. Annual filings declined from 7,776 in 2013 to 5,372 in 2023 (-31%). The most active applicants in class F02 are TOYOTA MOTOR CORPORATION (8,687 applications), ROBERT BOSCH (8,328 applications) and FORD GLOBAL TECHNOLOGIES (7,423 applications).
Source: EPO PATSTAT, worldwide filings
Top Applicants
Top 10 applicants by patent filingsfor class F02, 2013–2023, worldwide · Source: EPO PATSTAT
- TOYOTA MOTOR CORPORATION 8,687
- ROBERT BOSCH DE 8,328
- FORD GLOBAL TECHNOLOGIES US 7,423
- GE (GENERAL ELECTRIC COMPANY) US 5,732
- UNITED TECHNOLOGIES CORPORATION (UTC) US 5,592
- HYUNDAI MOTOR COMPANY KR 4,699
- TOYOTA MOTOR CORPORATION JP 4,541
- DENSO CORPORATION 3,711
- WEICHAI POWER COMPANY 3,486
- SAFRAN AIRCRAFT ENGINES FR 3,249