Patents-Review.com
ClassID:

71448 ⎘

B63H2005/106 - CPC Classification

Classification description:

Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type with drive shafts of second or further propellers co-axially passing through hub of first propeller, e.g. counter-rotating tandem propellers with co-axial drive shafts

Recent Application in this class:
#1
20260116520
2026-04-30

MARINE CONTROLLABLE-PITCH PROPELLER, PROPELLER SYSTEM FOR A BOAT AND BOAT INCLUDING THE SAME

 #2
20260028104
2026-01-29

MARINE DRIVE TRANSMISSION WITH CONTRA-ROTATING PROPELLERS

 #3
20260015072
2026-01-15

MARINE DRIVE UNIT

 #4
20250346333
2025-11-13

HULL-DIRECTED PROPULSION SYSTEM OF CONTRA-ROTATING PROPELLER AND METHOD FOR MANUFACTURING THE SAME

 #5
20240367769
2024-11-07

ANGULARLY POSITIONED MARINE PROPELLER COMBINATION AND A METHOD OF OPERATING A MARINE PROPELLER COMBINATION

 #6
20220411035
2022-12-29

Fluid machine

 #7
20210031892
2021-02-04

Dual propeller drive system for a ship

 #8
20190127035
2019-05-02

Propeller assembly

 #9
20190100293
2019-04-04

Unidirectional torque boosting propeller

 #10
20180178890
2018-06-28

Propulsion apparatus for ship

 #11
20170137100
2017-05-18

Contra-rotating propulsor for marine propulsion

 #12
20160194066
2016-07-07

Propulsion device for ship and ship comprising the same

 #13
20160137280
2016-05-19

Outboard motor

 #14
20160137279
2016-05-19

Outboard motor

 #15
20150071780
2015-03-12

Propulsion apparatus for ship and ship having the same

 #16
20150030452
2015-01-29

Propulsion device for ship and ship having the same

 #17
20140364265
2014-12-11

Contra-rotating propulsor for marine propulsion

 #18
20140127035
2014-05-08

Propulsion device for vessel and vessel having same

 #19
20110033296
2011-02-10

Contra-rotating propeller marine propulsion device

 #20
20110021095
2011-01-27

Contra-rotating propeller marine propulsion device

 #21
20100296929
2010-11-25

Contra-rotating propeller unit, method for assembly thereof, method for transportation thereof, and method for mounting thereof on mother ship

 #22
20100248564
2010-09-30

Lubricator in power transmission system of marine propulsion unit

 #23
20090203272
2009-08-13

OUTBOARD MOTOR

 #24
20090053944
2009-02-26

Propulsion system for a ship or seagoing vessel

 #25
20050084382
2005-04-21

Pulling marine propeller

 #26
19178979
2026-04-14

Enhanced performance parallel loop blade propellers

 #27
18198493
2024-08-06

Dual propeller assemblies and methods

 #28
17745517
2023-02-21

Systems and methods for absorbing shock with counter-rotating propeller shafts in a marine propulsion device

 #29
17525059
2025-01-07

Stern drive propeller hub assembly

 #30
16737232
2022-06-14

Systems and methods for rotatably supporting counter-rotating propeller shafts in a marine propulsion device

 #31
16723228
2022-06-21

Systems and methods for absorbing shock with counter-rotating propeller shafts in a marine propulsion device

 #32
16507744
2022-05-24

Systems and methods for adjusting the rotational timing between driveshafts

 #33
15958704
2019-06-18

Marine drives and assemblies for supporting an output gear in a marine drive