CPC Main Group
F23H 11/00 Travelling-grates
9 direct subcodes
Child Classifications
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- F23H 11/02 with the bars disposed on transverse bearers
- F23H 11/04 with the bars pivoted at one side
- F23H 11/06 with the bars movable relatively to one another
- F23H 11/08 with several individually-movable grate surfaces
- F23H 11/10 with special provision for supply of air from below and for controlling air supply
- F23H 11/12 inclined travelling grates; Stepped travelling grates
- F23H 11/14 serving as auxiliary grates
- F23H 11/16 for multi-layer stoking
- F23H 11/18 Details
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