B63H1/18 - CPC Classification Index

ClassID:

71400 ⎘

B63H1/18 - CPC Classification

Classification description:

Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction; Propellers with means for diminishing cavitation, e.g. supercavitation

Sub-classes:

B63H2001/185 » {Surfacing propellers, i.e. propellers specially adapted for operation at the water surface, with blades incompletely submerged, or piercing the water surface from above in the course of each revolution} 43

Recent Application in this class:

20250326476

2025-10-23

VENTILATION CONTROL SYSTEM

20250128803

2025-04-24

OUTBOARD MOTOR

20250074565

2025-03-06

METHOD OF CONTROLLING ROTATIONAL SPEED OF PROPELLER OF SHIP TO REDUCE CAVITATION

20240295230

2024-09-05

Duct arrangement and method

20240076023

2024-03-07

VENTILATION CONTROL SYSTEM

20240051646

2024-02-15

SYSTEM FOR REDUCING BLADE TIP VORTEX CAVITATION BY CONTROLLING MASS FLOW

20230264807

2023-08-24

Arrangement for influencing liquid flow and a method

20230113792

2023-04-13

System and Method for Marine Propulsion With Low Acoustic Noise

20220315182

2022-10-06

VENTILATION CONTROL SYSTEM

#10

20220289352

2022-09-15

A MARINE PROPELLER

#11

20220274678

2022-09-01

Propeller for a marine vessel

#12

20220177094

2022-06-09

SURFACE PROTECTION AGAINST CAVITATION EROSION

#13

20210284306

2021-09-16

Contoured boat propeller shield

#14

20210199012

2021-07-01

Cavitation and noise reduction in axial flow rotors

#15

20200361584

2020-11-19

VENTILATION CONTROL SYSTEM

#16

20200079483

2020-03-12

Prevention of cavitation

#17

20200055566

2020-02-20

Watercraft with transom-mounted lifting fin

#18

20190315444

2019-10-17

High speed surface craft and submersible craft

#19

20190112019

2019-04-18

Propeller system for a watercraft

#20

20190039704

2019-02-07

VENTILATION CONTROL SYSTEM

#21

20180170498

2018-06-21

Method of decreasing pressure fluctuation by using real-time vibration information and adjusting rotation angles of two propellers of twin-propeller ship

#22

20180170497

2018-06-21

Method of decreasing pressure fluctuation on hull of twin-propeller ship by adjusting rotation angles of two propellers

#23

20180127074

2018-05-10

Diffuser-type endplate propeller

#24

20170088244

2017-03-30

Peripheral tunnels propeller with alternative balance

#25

20170081003

2017-03-23

High speed surface craft and submersible craft

#26

20170044674

2017-02-16

MULTILAYER COATING METHOD FOR PREVENTING EROSION OF CAVITATION

#27

20170043852

2017-02-16

Long shaft propeller controller and bearing seal protector

#28

20170029071

2017-02-02

Submerged planing surface that provides hydrodynamic lift in a liquid at high speed

#29

20170001697

2017-01-05

VENTILATION CONTROL SYSTEM

#30

20160264226

2016-09-15

Outboard motor

#31

20160032839

2016-02-04

Compositions and methods for generating cavitation resistance

#32

20150166156

2015-06-18

VENTILATION CONTROL SYSTEM

#33

20150100185

2015-04-09

ARRANGEMENT AND METHOD IN A SHIP

#34

20150068441

2015-03-12

High speed surface craft and submersible vehicle

#35

20150000584

2015-01-01

High speed surface craft and submersible craft

#36

20130149167

2013-06-13

MARINE PROPELLER APPLICABLE TO ALL SPEED RANGES

#37

20130102209

2013-04-25

Propulsion device and ship using the same

#38

20120315811

2012-12-13

High speed surface craft and submersible vehicle

#39

20100304627

2010-12-02

Ventilation control system

#40

20100111703

2010-05-06

Safety propeller

#41

20090247029

2009-10-01

Engine control system for jet-propulsion boat, jet-propulsion boat incorporating same, and method of using same

#42

20090215330

2009-08-27

Propulsion system for boat

#43

20090191774

2009-07-30

Outboard motor with reverse shift

#44

20080020658

2008-01-24

Outboard motor with reverse shift

#45

20070172358

2007-07-26

Protection of surfaces against cavitation erosion

#46

20070123119

2007-05-31

Outboard motor

#47

20060281376

2006-12-14

Propulsion unit for motor boats

#48

20060128235

2006-06-15

Prevention of cavitation corrosion

#49

20060035541

2006-02-16

Outboard motor

#50

20050025626

2005-02-03

Supercavitating propeller with adjustable cup, and the method to adjust said cup

#51

18631688

2025-08-19

Marine drives and methods of making marine drives so as to minimize deleterious effects of cavitation

#52

18204624

2024-05-14

Marine drives and methods of making marine drives so as to minimize deleterious effects of cavitation

#53

17880860

2023-08-01

Marine drives and methods of making marine drives so as to minimize deleterious effects of cavitation

#54

17147473

2023-06-20

Superventilated blade that provides hydrodynamic force in a liquid at high speed

#55

17000532

2022-10-04

Marine drives and methods of making marine drives so as to minimize deleterious effects of cavitation

#56

16242866

2020-07-14

Long shaft propeller controller and bearing seal protector

#57

15901269

2018-07-03

Marine drives having exhaust systems that discharge exhaust gas through a gearcase housing

#58

15694195

2019-11-26

Watercraft lifting fin

#59

15414854

2018-04-03

Marine drives having exhaust systems that discharge exhaust gas through a gearcase housing

#60

14572738

2016-10-25

Long shaft propeller controller and bearing seal protector