IPC Subgroup
F02K 9/1 Shape or structure of solid propellant charges
Introduced: January 1980
Last revised: January 2006
Full Title
Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof > using solid propellants > Shape or structure of solid propellant charges
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- Subclass:
- JET-PROPULSION PLANTS
6 direct subcodes
Child Classifications
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- F02K 9/12 made of two or more portions burning at different rates
- F02K 9/14 made from sheet-like materials, e.g. of carpet-roll type, of layered structure
- F02K 9/16 of honeycomb structure
- F02K 9/18 of the internal-burning type having a star or like shaped internal cavity
- F02K 9/2 of the external-burning type
- F02K 9/22 of the front-burning type
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