Patents-Review.com
ClassID:

131240 ⎘

E04F21/247 - CPC Classification

Classification description:

Implements for finishing work on buildings for laying flooring of masses made , e.g. smoothing tools; Rotary power trowels, i.e. helicopter trowels used by an operator sitting on the trowel, i.e. ride-on power trowels

Recent Application in this class:
#1
20260043256
2026-02-12

MULTI- ENGINE HYDRAULIC-DRIVE POWER TROWEL

 #2
20240198477
2024-06-20

Electric Polisher for Concrete Surfaces

 #3
20240011291
2024-01-11

DECORATIVE CONCRETE WITH UNIFORM SURFACE AND METHOD OF FORMING THE SAME

 #4
20230383551
2023-11-30

Mounting Adapter for Concrete Surface Processing Tools

 #5
20230256557
2023-08-17

EASY-DETACHABLE GRINDING DEVICE FOR CEMENT WALK-BEHIND TROWEL MACHINE

 #6
20230235577
2023-07-27

Mounting adapter for concrete surface processing tools

 #7
20230080219
2023-03-16

Mounting adapter for concrete surface processing tools

 #8
20220364375
2022-11-17

TOOL FOR THE MECHANICAL TREATMENT OF A CONCRETE FLOOR

 #9
20220307275
2022-09-29

METHOD AND ARRANGEMENT FOR THE TREATING OF A FLOOR SURFACE

 #10
20220220752
2022-07-14

Offset mounting adapter for concrete surface processing tool

 #11
20220178089
2022-06-09

Flotation machine having pan support structure configured for conforming the shape of a float pan

 #12
20220090397
2022-03-24

Riding trowel having rotors configured for reverse rotation

 #13
20210355694
2021-11-18

Offset mounting adapter for concrete surface processing tool

 #14
20210348398
2021-11-11

Assembly for improving performance and lifespan of a concrete finishing pan

 #15
20210317669
2021-10-14

Mounting adapter for concrete surface processing tools

 #16
20210180340
2021-06-17

Thermal management system for a drive train

 #17
20210140181
2021-05-13

Autonomous power trowel

 #18
20210047845
2021-02-18

Concrete surface polishing trowel and conversion adaptor

 #19
20200318367
2020-10-08

Powered concrete finishing apparatus having annular working surface

 #20
20200263443
2020-08-20

Riding trowel having rotors configured for reverse rotation

 #21
20180355624
2018-12-13

Hybrid drive train for self propelled power trowel

 #22
20180202158
2018-07-19

Method of forming a decorative concrete structure

 #23
20180058080
2018-03-01

Offset mounting adapter for concrete surface processing tool

 #24
20150093194
2015-04-02

Riding trowel with CVT clutch module

 #25
20130309010
2013-11-21

TRANSPORTER FOR RIDE-ON POWER TROWEL

 #26
20130129419
2013-05-23

Auto pitch control power trowel

 #27
20120163914
2012-06-28

Method and apparatus for controlling engine speed of a self-propelled power trowel during high load conditions

 #28
20120163912
2012-06-28

Concrete trowel transport system

 #29
20110222966
2011-09-15

Hydraulic riding trowels with automatic load sensing

 #30
20110135388
2011-06-09

Concrete finishing apparatus

 #31
20110033235
2011-02-10

CONCRETE FINISHING TROWEL WITH SPEED CONTROL

 #32
20100254763
2010-10-07

Multiple preset concrete trowel steering system

 #33
20100205762
2010-08-19

Grout Application Device

 #34
20100202833
2010-08-12

Unfolding ride-on power trowel

 #35
20100196162
2010-08-05

Simultaneous twin pitch adjustment system

 #36
20100172695
2010-07-08

Apparatus and method for improving the control of a concrete screed head assembly

 #37
20100150653
2010-06-17

BLADE PITCH ADJUSTMENT DEVICE

 #38
20090214294
2009-08-27

Concrete finishing apparatus

 #39
20090190999
2009-07-30

Apparatus and method for surface finishing cured concrete

 #40
20090185860
2009-07-23

Riding concrete trowel with stabilizers

 #41
20090169300
2009-07-02

Hydraulic riding trowel with automatic load sensing system

 #42
20090156099
2009-06-18

METHODS AND APPARATUSES FOR SURFACE FINISHING CURED CONCRETE

 #43
20090047070
2009-02-19

Concrete trowel transport system

 #44
20090028643
2009-01-29

Mounting adapter for concrete surface processing tool

 #45
20090028642
2009-01-29

Concrete trowel steering system

 #46
20080267708
2008-10-30

Apparatus and method for improving control of a concrete screed head assembly

 #47
20080019774
2008-01-24

Concrete finishing trowel

 #48
20070292207
2007-12-20

Methods and apparatuses for surface finishing cured concrete

 #49
20070140792
2007-06-21

Apparatus for improving the control of a concrete screed head assembly

 #50
20070071553
2007-03-29

Floor surface finishing device

 #51
20060216114
2006-09-28

Apparatus and method for improving the control of a concrete screed head assembly

 #52
20050141962
2005-06-30

Metal plate reinforced plastic trowel blade for power troweling

 #53
15982764
2018-10-16

Ventilated high capacity hydraulic riding trowel

 #54
15019493
2017-04-25

Hydraulically-driven concrete finishing trowel having hydraulic fluid cooling system and method