ClassID:

145233

F05D2200/221 - CPC Classification

Classification description:

Mathematical features; Special functions; Power Square power

Recent Application in this class:
#1
20260153097
2026-06-04

GAS TURBINE ENGINE WITH ACOUSTIC SPACING OF THE FAN BLADES AND OUTLET GUIDE VANES

#2
20260139597
2026-05-21

TURBINE ENGINE WITH A BLADE ASSEMBLY HAVING COOLING CONDUITS

#3
20260070667
2026-03-12

AIRCRAFT WITH AN UNDUCTED FAN PROPULSOR

#4
20260028947
2026-01-29

TURBOMACHINERY ENGINES WITH HIGH-SPEED LOW-PRESSURE TURBINES

#5
20260002494
2026-01-01

HIGH-SPEED SHAFT RATING FOR TURBINE ENGINES

#6
20250382975
2025-12-18

GAS TURBINE ENGINE WITH ACOUSTIC SPACING OF THE FAN BLADES AND OUTLET GUIDE VANES

#7
20250382974
2025-12-18

GAS TURBINE ENGINE WITH ACOUSTIC SPACING OF THE FAN BLADES AND OUTLET GUIDE VANES

#8
20250341182
2025-11-06

GAS TURBINE ENGINE

#9
20250341181
2025-11-06

GAS TURBINE ENGINE

#10
20250283418
2025-09-11

TURBINE ENGINE WITH A BLADE ASSEMBLY HAVING A SET OF COOLING CONDUITS

#11
20250283414
2025-09-11

TURBINE ENGINE WITH A BLADE ASSEMBLY HAVING A SET OF COOLING CONDUITS

#12
20250250942
2025-08-07

Overall Engine Efficiency Rating for Turbomachine Engines

#13
20250215823
2025-07-03

GAS TURBINE ENGINE

#14
20240263588
2024-08-08

Overall engine efficiency rating for turbomachine engines

#15
20240254925
2024-08-01

Overall engine efficiency rating for turbomachine engines

#16
20240052785
2024-02-15

DUCTED TURBOMACHINERY ENGINES

#17
20230323819
2023-10-12

Overall engine efficiency rating for turbomachine engines

#18
20230258091
2023-08-17

Engine component with cooling architecture

#19
20230243309
2023-08-03

Overall engine efficiency rating for turbomachine engines

#20
20230076976
2023-03-09

Gas turbine engine with third stream

#21
20220178271
2022-06-09

Variable displacement exhaust turbocharger

#22
20190195143
2019-06-27

System and method for estimation of gas fuel lower heating value using energy balances and parametric error modeling

#23
20190186357
2019-06-20

GAS TURBINE ENGINE WITH FAN TIED COMPRESSOR

#24
20190170003
2019-06-06

Modulation of vane end serrations

#25
20180051585
2018-02-22

Turbofan gas turbine engine shaft break detection system and method

#26
20170370285
2017-12-28

Gas turbine engine with high speed low pressure turbine section

#27
20070086886
2007-04-19

Variable nozzle for a gas turbine

#28
19190507
2025-09-30

Gas turbine engine with acoustic spacing of the fan blades and outlet guide vanes

#29
19060252
2025-12-02

High-speed shaft rating for turbine engines

#30
19060234
2025-09-23

High-speed shaft rating for turbine engines

#31
19060222
2025-09-16

High-speed shaft rating for turbine engines

#32
17694444
2022-10-11

Overall engine efficiency rating for turbomachine engines

#33
17486277
2022-11-08

Gas turbine engine with third stream