CPC Subgroup Additional Only
F05B 2270/101 to control rotational speed (n)
Full Title
Control > Purpose of the control system > to control rotational speed (n)
4 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- F05B 2270/1011 to prevent overspeed
- F05B 2270/1012 to prevent underspeed
- F05B 2270/1013 of different spools or shafts
- F05B 2270/1014 to keep rotational speed constant
Top Applicants
Top 10 applicants by patent filingsfor class F05, 2013–2023, worldwide · Source: EPO PATSTAT
- GE (GENERAL ELECTRIC COMPANY) US 12,002
- UNITED TECHNOLOGIES CORPORATION (UTC) US 8,736
- SAFRAN AIRCRAFT ENGINES FR 6,804
- RAYTHEON TECHNOLOGIES CORPORATION US 4,530
- SIEMENS DE 4,371
- GE (GENERAL ELECTRIC COMPANY) 3,686
- ROLLS-ROYCE GB 3,594
- PRATT & WHITNEY CANADA CORPORATION CA 3,415
- VESTAS DK 3,076
- WOBBEN PROPERTIES DE 2,614