ClassID:

153469

F16L58/109 - CPC Classification

Classification description:

Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings; Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe the coating being an extruded layer

Recent Application in this class:
#1
20260153184
2026-06-04

METAL PIPES WITH ANTICORROSIVE POLYOLEFIN COVERING LAYER

#2
20250369554
2025-12-04

METHOD OF COATING A PIPE

#3
20250271094
2025-08-28

FIELD JOINT METHOD AND APPARATUS

#4
20250122970
2025-04-17

PROCESS FOR MANUFACTURING COPPER CONDUITS FOR AIR CONDITIONING SYSTEMS WITH IMPROVED ANTI-CORROSIVE PERFORMANCE

#5
20250083176
2025-03-13

Girth Weld Coater

#6
20240060593
2024-02-22

COATED PIPE SECTION AND METHOD FOR COATING A PIPE

#7
20220299154
2022-09-22

Thermoplastic Vulcanizate Compositions and Thermoplastic Olefinic Compositions as Insulating Layers in Non-Flexible Pipes

#8
20220243858
2022-08-04

COATED PIPE SECTION AND METHOD FOR COATING A PIPE

#9
20220154870
2022-05-19

METAL PIPES WITH ANTICORROSIVE POLYOLEFIN COVERING LAYER

#10
20210362179
2021-11-25

Girth weld coater

#11
20200055077
2020-02-20

Girth weld coater

#12
20190346073
2019-11-14

Stitched double layer composite hose and manufacturing method thereof

#13
20190211948
2019-07-11

Watertight electrical conduit

#14
20180236479
2018-08-23

Girth weld coater

#15
20180038542
2018-02-08

Metal pipes with anticorrosive polyolefin covering layer

#16
20160375465
2016-12-29

Method and apparatus for coating a pipe

#17
20160257064
2016-09-08

Roller and method for compressing protective sheeting of polymer material around a pipeline

#18
20150308753
2015-10-29

METHOD FOR PRODUCING A MULTI-LAYER PIPE LINE, PIPE LINE, AND AIR-CONDITIONING SYSTEM HAVING SUCH A PIPE LINE

#19
20150266224
2015-09-24

Method, device and work station for applying protective sheeting of polymer material to a pipeline, and computer program for implementing such a method

#20
20150260019
2015-09-17

Expandable tubular and method of making same

#21
20150226365
2015-08-13

Iron-based piping element for buried pipeline, comprising an outer coating

#22
20150044320
2015-02-12

Mould equipment for pipeline section coating and methods for coating of pipeline sections with moulds

#23
20150042007
2015-02-12

Mould equipment for pipeline section coating and methods for coating of pipeline sections with moulds

#24
20130287981
2013-10-31

Coated metallic article

#25
20130214034
2013-08-22

Method and apparatus for coating pipes

#26
20120291942
2012-11-22

Pipe Preformed Liner Comprising Metal Powder

#27
20120003414
2012-01-05

Pipe preformed liner comprising metal powder

#28
20120000563
2012-01-05

Pipe preformed liner comprising metal powder

#29
20120000541
2012-01-05

Use of a conduit pipe for producing a duct laid in water

#30
20110248072
2011-10-13

METHOD AND APPARATUS FOR COATING PIPES AND PIPE SECTIONS

#31
20110232842
2011-09-29

PIPE PREFORMED LINER COMPRISING METAL POWDER

#32
20110217497
2011-09-08

Coated pipe comprising polyolefin layer with enhanced adhesion

#33
20100300572
2010-12-02

Method of producing an underground pipeline

#34
20100247947
2010-09-30

Steel pipe for vehicle piping

#35
20100227190
2010-09-09

METHOD FOR THE UNIFORM APPLICATION OF A COATING TO A TUBULAR WALL

#36
20100218893
2010-09-02

METHOD FOR THE PRODUCTION OF A METALLIC LINE PIPE WITH A FIRMLY ADHERING PLASTIC SHEATHING

#37
20100133324
2010-06-03

Method and apparatus for coating pipes

#38
20090165944
2009-07-02

Coating method for pipe having weld bead

#39
20090098296
2009-04-16

Method for manufacturing coated pipes

#40
20090035459
2009-02-05

COATED PIPE AND METHOD USING STRAIN-HARDENING BRITTLE MATRIX COMPOSITES

#41
20070240816
2007-10-18

PROTECTIVE GIRTH-WELD COVER WITH AIR RELEASE

#42
20070141285
2007-06-21

Pipe preformed liner comprising metal powder

#43
20050025922
2005-02-03

Polyolefin coated steel pipes