CPC Subgroup
F23R 3/48 Flame tube interconnectors, e.g. cross-over tubes
Full Title
Continuous combustion chambers using liquid or gaseous fuel > characterised by the arrangement or form of the flame tubes or combustion chambers > Combustion chambers comprising an annular arrangement of flame tubes within a common annular casing or within individual casings > Flame tube interconnectors, e.g. cross-over tubes
Top Applicants
Top 10 applicants by patent filingsfor class F23, 2013–2023, worldwide · Source: EPO PATSTAT
- GE (GENERAL ELECTRIC COMPANY) US 2,581
- UNITED TECHNOLOGIES CORPORATION (UTC) US 1,180
- SIEMENS DE 1,157
- GE (GENERAL ELECTRIC COMPANY) 994
- XIAN THERMAL POWER RESEARCH INSTITUTE COMPANY 769
- MITSUBISHI HEAVY INDUSTRIES JP 701
- MITSUBISHI HITACHI POWER SYSTEMS JP 695
- RAYTHEON TECHNOLOGIES CORPORATION US 587
- NINGBO FOTILE KITCHENWARE COMPANY 543
- GENERAL ELECTRIC TECHNOLOGY CH 490