C03B37/027 - CPC Classification Index

ClassID:

87278 ⎘

C03B37/027 - CPC Classification

Classification description:

Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags; Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms Fibres composed of different sorts of glass, e.g. glass optical fibres

Sub-classes:

C03B37/02709 » {Polarisation maintaining fibres, e.g. PM, PANDA, bi-refringent optical fibres} 14
C03B37/02718 » {Thermal treatment of the fibre during the drawing process, e.g. cooling } 87
C03B37/02736 » {Means for supporting, rotating or feeding the tubes, rods, fibres or filaments to be drawn, e.g. fibre draw towers, preform alignment, butt-joining preforms or dummy parts during feeding } 53
C03B37/02745 » {Fibres having rotational spin around the central longitudinal axis, e.g. alternating +/- spin to reduce polarisation mode dispersion} 42
C03B37/02754 » {Solid fibres drawn from hollow preforms} 35
C03B37/02763 » {Fibres having axial variations, e.g. axially varying diameter, material or optical properties } 25
C03B37/02772 » {shaping the preform lower end or bulb, e.g. pre-gobbing, controlling draw bulb shape, or preform draw start-up procedures} 14
C03B37/02781 » {Hollow fibres, e.g. holey fibres} 111
C03B37/0279 » {Photonic crystal fibres or microstrructured optical fibres other than holey optical fibres} 34

Recent Application in this class:

20260063835

2026-03-05

OPTICAL FIBER WITH REDUCED ATTENUATION DUE TO REDUCED ABSORPTION CONTRIBUTION

20250304486

2025-10-02

OPTICAL FIBER PREFORM MANUFACTURING METHOD AND OPTICAL FIBER MANUFACTURING METHOD

20250298182

2025-09-25

PREFORM FOR MULTICORE OPTICAL FIBERS

20250178946

2025-06-05

METHOD OF FORMING A MULTICORE PREFORM AND FIBER

20250138239

2025-05-01

METHOD AND INTERMEDIATE PRODUCT FOR PRODUCING A MULTI-CORE FIBRE WITH A MARKER

20250091931

2025-03-20

Quartz fibre with hydrogen barrier layer and method for the production thereof

20250002391

2025-01-02

Optical Fiber Drawing Apparatus and Method Thereof

20240360025

2024-10-31

METHOD OF MANUFACTURING A POROUS GLASS BODY TO LOWER ATTENUATION OF OPTICAL FIBER MADE THEREFROM

20240327267

2024-10-03

OPTICAL FIBER AND A GLASS PREFORM MANUFACTURING METHOD

#10

20240230986

2024-07-11

OPTICAL FIBER AND METHOD OF MANUFACTURING OPTICAL FIBER

#11

20240176062

2024-05-30

Method of manufacturing optical connector

#12

20230416139

2023-12-28

METHOD FOR PRODUCING A PREFORM FOR PRODUCING A MULTICORE FIBRE AND ALSO A PREFORM AND A MULTICORE FIBRE

#13

20230382779

2023-11-30

MULTI-CORE OPTICAL FIBER PREFORM, MULTI-CORE OPTICAL FIBER PREFORM PRODUCTION METHOD, AND MULTI-CORE OPTICAL FIBER PRODUCTION METHOD

#14

20230312392

2023-10-05

Plasma Chemical Vapor Deposition Process

#15

20230275388

2023-08-31

OPTICAL FIBER RAW MATERIAL COMPOSITION, OPTICAL FIBER, AND OPTICAL FIBER PRODUCT

#16

20230242436

2023-08-03

Glass with high refractive index for fiber optic imaging element with medium-expansion and fabrication method therefor

#17

20230094509

2023-03-30

MULTIMODE OPTICAL FIBER CORE CANE CLASSIFICATION METHOD

#18

20230086322

2023-03-23

STRUCTURED SILICA CLAD SILICA OPTICAL FIBERS

#19

20230067347

2023-03-02

Multi-fiber light guide, device with a multi-fiber light guide and method for producing the same

#20

20220371952

2022-11-24

Cane-Based Multicore Optical Fiber and Methods of Forming

#21

20220340473

2022-10-27

Microstructured glass articles with at least 100 core elements and methods for forming the same

#22

20220306516

2022-09-29

Vacuum-based methods of forming a cane-based optical fiber preform and methods of forming an optical fiber using same

#23

20220283363

2022-09-08

OPTICAL FIBER WITH REDUCED ATTENUATION DUE TO REDUCED ABSORPTION CONTRIBUTION

#24

20220227657

2022-07-21

Quartz fibre with hydrogen barrier layer and method for the production thereof

#25

20220185721

2022-06-16

Method for manufacturing optical fiber

#26

20220149581

2022-05-12

Method and device for processing active microcrystalline fiber by magnetic field induction and lasering

#27

20220127183

2022-04-28

Method and device for manufacturing an optical fibre

#28

20220077643

2022-03-10

Optical fiber with variable absorption

#29

20210405286

2021-12-30

Optical fiber with increased bend performance

#30

20210364692

2021-11-25

Optical fiber and method of manufacturing optical fiber

#31

20210302647

2021-09-30

Optical Fiber with Sequential Varying Core Profile Zones

#32

20210300812

2021-09-30

Manufacturing method for preform of multi-core fiber and manufacturing method for multi-core fiber

#33

20210292934

2021-09-23

MICROSTRUCTURED MATERIALS

#34

20210286125

2021-09-16

Method of manufacturing optical connector

#35

20210214265

2021-07-15

Microstructured glass articles with at least 100 core elements and methods for forming the same

#36

20210208332

2021-07-08

Method for manufacturing multimode optical fibers

#37

20210198139

2021-07-01

Method for producing a preform for producing a multicore fibre and also a preform and a multicore fibre

#38

20210096297

2021-04-01

Optical fiber

#39

20210053863

2021-02-25

Suspension structure and suspension method for optical fiber preform and manufacturing method and suspension method for optical fiber

#40

20210032160

2021-02-04

High speed draw optical fiber coating system and method

#41

20210026064

2021-01-28

Single mode optical fiber and manufacturing method thereof

#42

20200379168

2020-12-03

Multi-core fibers and method of manufacturing the same, and optical transmission system and optical transmission method

#43

20200379166

2020-12-03

Method for forming thermal-responsive fibers

#44

20200361809

2020-11-19

Method of manufacturing an optical fiber using axial tension control to reduce axial variations in optical properties

#45

20200361806

2020-11-19

Preparation of a quartz glass body in a multi-chamber oven

#46

20200308042

2020-10-01

METHOD OF MANUFACTURING MULTICORE OPTICAL FIBER

#47

20200277219

2020-09-03

Vacuum-based methods of forming a cane-based optical fiber preform and methods of forming an optical fiber using same

#48

20200270165

2020-08-27

Optical fiber and manufacturing method thereof

#49

20200247710

2020-08-06

Method for manufacturing optical fiber parent material, and method for manufacturing optical fiber

#50

20200199009

2020-06-25

Method for manufacturing optical fiber

#51

20200189958

2020-06-18

MANUFACTURING METHOD OF OPTICAL FIBER

#52

20200180996

2020-06-11

Contactless direction converter and method for manufacturing optical fiber

#53

20200132598

2020-04-30

Optical fiber inspecting device, optical fiber manufacturing apparatus, method for inspecting optical fiber, and method for manufacturing optical fiber

#54

20200095158

2020-03-26

Optical fiber production method

#55

20200087195

2020-03-19

Halogen doped optical fibers

#56

20200064546

2020-02-27

Fiber coatings with low pullout force

#57

20200048137

2020-02-13

Optical fiber, method for manufacturing optical fiber, and optical fiber preform

#58

20200024176

2020-01-23

Viscocity-reducing dopants in optical fibers

#59

20190375672

2019-12-12

Process of fabrication of Erbium and Ytterbium-co-doped multi-elements silica glass based cladding-pumped fiber

#60

20190345054

2019-11-14

PREPARATION METHOD FOR LOW OXYGEN CONTENT SEMICONDUCTOR CORE COMPOSITE MATERIAL OPTICAL FIBRE PREFORM

#61

20190300421

2019-10-03

Method for manufacturing multicore optical fiber

#62

20190300420

2019-10-03

Optical fiber manufacturing method

#63

20190263705

2019-08-29

METHOD OF THERMALLY DRAWINGS STRUCTURED SHEETS

#64

20190185365

2019-06-20

Method for manufacturing optical fiber

#65

20190152827

2019-05-23

PREPARATION OF QUARTZ GLASS BODIES FROM SILICON DIOXIDE POWDER

#66

20190119143

2019-04-25

Optical fiber preforms with halogen doping

#67

20190119141

2019-04-25

Increase in silicon content in the preparation of quartz glass

#68

20190101693

2019-04-04

Optical fiber, and system and method for manufacturing optical fiber

#69

20190084866

2019-03-21

Method for manufacturing glass ingot

#70

20190084865

2019-03-21

Method for manufacturing a preform for optical fibers

#71

20190062198

2019-02-28

Glass fibers and pre-forms made of homogeneous quartz glass

#72

20190062197

2019-02-28

Preparation of quartz glass bodies from silicon dioxide granulate

#73

20190062194

2019-02-28

STEAM TREATMENT OF SILICON DIOXIDE POWDER IN THE PREPARATION OF QUARTZ GLASS

#74

20190062193

2019-02-28

Preparation of a quartz glass body in a multi-chamber oven

#75

20190055153

2019-02-21

FLUID BEARINGS HAVING A FIBER SUPPORT CHANNEL FOR SUPPORTING AN OPTICAL FIBER DURING AN OPTICAL FIBER DRAW PROCESS

#76

20190052043

2019-02-14

Mode mixing optical fibers and methods and systems using the same

#77

20190049372

2019-02-14

Optical fiber inspecting device, optical fiber manufacturing apparatus, method for inspecting optical fiber, and method for manufacturing optical fiber

#78

20180370842

2018-12-27

Ribbon optical fiber made of photosensitive glass

#79

20180370841

2018-12-27

METHOD FOR MANUFACTURING OPTICAL FIBER PREFORM, METHOD FOR MANUFACTURING OPTICAL FIBER, AND METHOD FOR DOPING SILICA GLASS

#80

20180356587

2018-12-13

NON-CIRCULAR MULTICORE FIBER AND METHOD OF MANUFACTURE

#81

20180257971

2018-09-13

Method of thermally drawing structured sheets

#82

20180251397

2018-09-06

Optical fiber with low loss and nanoscale structurally homogeneous core

#83

20180180801

2018-06-28

Method of manufacturing an active optical fibre and the active optical fibre

#84

20180044234

2018-02-15

Fiber Bragg Gratings in Carbon-Coated Optical Fibers and Techniques for Making Same

#85

20180016181

2018-01-18

METHOD FOR PRODUCING MULTI-CORE OPTICAL FIBER

#86

20180016180

2018-01-18

Method and apparatus for continuous or batch preform and optical fiber production

#87

20170322369

2017-11-09

NON-CIRCULAR MULTICORE FIBER AND METHOD OF MANUFACTURE

#88

20170240454

2017-08-24

Layered glass structures

#89

20170235045

2017-08-17

Low attenuation fiber with stress relieving layer and a method of making such

#90

20170219770

2017-08-03

Low attenuation fiber with viscosity matched core and inner clad

#91

20170205575

2017-07-20

Multicore optical fiber and method for manufacturing multicore optical fiber

#92

20170203995

2017-07-20

METHOD FOR PRODUCING A TUBULAR SEMIFINISHED PRODUCT FROM QUARTZ GLASS, METHOD FOR PRODUCING AN OPTICAL COMPONENT USING THE SEMIFINISHED PRODUCT, AND SEMIFINISHED PRODUCT CONSISTING OF QUARTZ GLASS DOPED WITH FLUORINE

#93

20170144915

2017-05-25

Method of thermally drawing structured sheets

#94

20170129800

2017-05-11

Method of making optical fibers in a reducing atmosphere

#95

20170101339

2017-04-13

Method of assembling optical fiber preforms

#96

20170101335

2017-04-13

Method to prevent cracks in optical fiber preforms

#97

20170045681

2017-02-16

OPTICAL FIBER AND METHOD OF MANUFACTURING OPTICAL FIBER

#98

20170022094

2017-01-26

Optical fiber with low loss and nanoscale structurally homogeneous core

#99

20160361779

2016-12-15

Fiber Bragg gratings in carbon-coated optical fibers and techniques for making same

#100

20160349447

2016-12-01

Non-circular multicore fiber and method of manufacture

#101

20160326041

2016-11-10

Systems and methods for producing robust chalcogenide optical fibers

#102

20160299289

2016-10-13

Low attenuation fiber with stress relieving layer and a method of making such

#103

20160281267

2016-09-29

Process for creating a polymer filament suitable for use in three-dimensional printing

#104

20160181758

2016-06-23

High-efficiency parallel-beam laser optical fibre drawing method and optical fibre

#105

20160170137

2016-06-16

Low loss optical fiber and method of making the same

#106

20160109651

2016-04-21

Low loss optical fiber and method of making the same

#107

20160075591

2016-03-17

Optical fibers and preforms with one step fluorine trench and overclad and methods for making the same

#108

20160075590

2016-03-17

Production method of optical fiber preform, and production method of optical fiber

#109

20160070058

2016-03-10

Multicore optical fiber and optical module

#110

20160009589

2016-01-14

Method of making optical fibers in a reducing atmosphere

#111

20160009588

2016-01-14

Optical fiber with reducing hydrogen sensitivity

#112

20150370010

2015-12-24

Low attenuation fiber with viscosity matched core and inner clad

#113

20150336840

2015-11-26

Method of manufacturing preforms for optical fibres having low water peak

#114

20150329403

2015-11-19

Method of manufacturing preforms for optical fibres having low water peak

#115

20150323736

2015-11-12

Multicore fiber and method of manufacturing the same

#116

20150321944

2015-11-12

Seal structure of optical fiber drawing furnace, and method for drawing optical fiber

#117

20150316712

2015-11-05

Optical fiber containing an alkali metal oxide and methods and apparatus for manufacturing same

#118

20150315061

2015-11-05

Multi-core optical fiber ribbons and methods for making the same

#119

20150307387

2015-10-29

Method for forming optical fiber and preforms

#120

20150299024

2015-10-22

Tubular semifinished product for producing an optical fiber

#121

20150285993

2015-10-08

Fiber bragg gratings in carbon-coated optical fibers and techniques for making same

#122

20150285992

2015-10-08

Optical fiber preform

#123

20150284286

2015-10-08

METHOD FOR MAKING PREFORMS AND OPTICAL FIBERS

#124

20150277033

2015-10-01

Optical fiber with a low-index core and a core grating

#125

20150266767

2015-09-24

Optical fibers produced in microgravity environments and method of production

#126

20150259238

2015-09-17

Hydrogen-supported fluorination of soot bodies

#127

20150253499

2015-09-10

Broadband multi-mode optical fibers with flat-zone in dopant concentration profile

#128

20150117828

2015-04-30

Systems and methods for producing robust chalcogenide optical fibers

#129

20150098682

2015-04-09

Optical fiber preform, method for producing optical fiber, and optical fiber

#130

20150027170

2015-01-29

METHOD FOR PRODUCING OPTICAL FIBER

#131

20150023642

2015-01-22

High bandwidth MMF and method of making

#132

20140328565

2014-11-06

MULTIMODE OPTICAL FIBER AND METHOD OF MANUFACTURING THE SAME

#133

20140301706

2014-10-09

Low brillouin scattering optical fibers and formation methods thereof

#134

20140254997

2014-09-11

Optical fiber preform, method for producing optical fiber, and optical fiber

#135

20140242329

2014-08-28

Method of thermally drawing structured sheets

#136

20140238473

2014-08-28

Method of co-drawing hybrid incompatible materials

#137

20140226948

2014-08-14

Optical fiber producing method and apparatus and optical fiber

#138

20140119692

2014-05-01

Optical fiber and method for manufacturing same

#139

20140056596

2014-02-27

Optical fiber and optical transmission system

#140

20130283863

2013-10-31

METHOD OF FUSING AND STRETCHING A LARGE DIAMETER OPTICAL WAVEGUIDE

#141

20130243379

2013-09-19

Multi-mode optical fiber

#142

20130074551

2013-03-28

METHOD OF MAKING MULTI-CORE OPTICAL FIBER AND METHOD OF MAKING MULTI-CORE OPTICAL FIBER CONNECTOR

#143

20130061637

2013-03-14

Optical fiber preform and method of manufacturing optical fiber using optical fiber preform

#144

20120324960

2012-12-27

Method and tubular semifinished product for producing an optical fiber

#145

20120314279

2012-12-13

Multi-fibre arrangement for high power fibre lasers and amplifiers

#146

20120263427

2012-10-18

Optical fiber and optical fiber preform

#147

20120192594

2012-08-02

OPTICAL FIBER DRAWING METHODS AND DRAWING FURNACES

#148

20120125053

2012-05-24

Method of manufacturing optical fiber with selected draw tension

#149

20120118020

2012-05-17

Method of producing optical fiber preform and optical fiber

#150

20120114292

2012-05-10

Multi-core optical fiber ribbons and methods for making the same

#151

20110299824

2011-12-08

METHOD FOR PRODUCING AND PROCESSING A PREFORM, PREFORM AND OPTICAL FIBER

#152

20110230596

2011-09-22

Glass fibers having improved strength

#153

20110211797

2011-09-01

Optical fiber with increased mechanical strength

#154

20110177333

2011-07-21

#155

20110107794

2011-05-12

Method for manufacturing grin lens

#156

20110056245

2011-03-10

Methods for modifying ovality of optical fiber preforms

#157

20100188734

2010-07-29

Multi-fibre arrangement for high power fibre lasers and amplifiers

#158

20100157436

2010-06-24

Method of manufacturing grin lens and grin lens

#159

20100095706

2010-04-22

Method for manufacturing optical fibers and optical fiber performs

#160

20090241604

2009-10-01

Optical fiber drawing methods and drawing furnaces

#161

20090235696

2009-09-24

Method for Manufacturing Grin Lens

#162

20090226692

2009-09-10

Glass fibers having improved strength

#163

20090178440

2009-07-16

Method for fabricating micro/nano optical wires and device for fabricating the same

#164

20090003783

2009-01-01

Subwavelength-diameter silica wires for low-loss optical waveguiding

#165

20080271495

2008-11-06

Reduction of optical fiber cane/preform deformation in consolidation

#166

20080267229

2008-10-30

Optical fiber, optical fiber production method and optical fiber production system

#167

20080174857

2008-07-24

Multi-fibre arrangement for high power fibre lasers and amplifiers

#168

20070245773

2007-10-25

Elongation method for producing an optical component of quartz glass and preliminary product suited for performing the method

#169

20070240454

2007-10-18

Method and apparatus for continuous or batch optical fiber preform and optical fiber production

#170

20070125127

2007-06-07

METHODS FOR MODIFYING OVALITY OF OPTICAL FIBER PREFORMS

#171

20070003200

2007-01-04

Optical fibre having low splice loss and method for making it

#172

20060288740

2006-12-28

Heat-resistant optical fiber, a method of manufacturing the same, a method of fixing an optical fiber, and a heat-resistant optical fiber using a protective tube

#173