Patents-Review.com
ClassID:

87245 ⎘

C03B37/01446 - CPC Classification

Classification description:

Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags; Manufacture of glass fibres or filaments; Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD] Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering

Sub-classes:
Recent Application in this class:
#1
20260145985
2026-05-28

SYSTEMS AND METHODS FOR PRODUCING SOOT PREFORMS

 #2
20250376407
2025-12-11

PRODUCTION METHOD FOR POROUS GLASS PREFORM, PRODUCTION METHOD FOR TRANSPARENT GLASS PREFORM, AND PRODUCTION APPARATUS FOR POROUS GLASS PREFORM

 #3
20250271612
2025-08-28

HOLLOW CORE OPTICAL FIBER, HOLLOW CORE OPTICAL FIBER PREFORM, AND METHOD OF MAKING THE SAME

 #4
20250243106
2025-07-31

OPTICAL FIBER PREFORM AND METHOD OF MANUFACTURING OPTICAL FIBER PREFORM

 #5
20250236552
2025-07-24

OPTICAL ELEMENTS, DEVICES, AND SYSTEMS COMPRISING HALIDE MATERIAL COMPOSITIONS SOLIDIFIED FROM MELTS

 #6
20250002391
2025-01-02

Optical Fiber Drawing Apparatus and Method Thereof

 #7
20240140853
2024-05-02

MANUFACTURING METHOD OF GLASS BASE MATERIAL FOR OPTICAL FIBER

 #8
20240034667
2024-02-01

METHOD FOR MAKING HALOGEN DOPED OPTICAL ELEMENT

 #9
20230286851
2023-09-14

METHOD FOR MANUFACTURING OPTICAL FIBER PREFORM

 #10
20230278907
2023-09-07

OPTICAL FIBER GLASS PREFORM AND METHOD FOR MANUFACTURING OPTICAL FIBER GLASS PREFORM

 #11
20230159371
2023-05-25

SYNTHETIC QUARTZ GLASS MANUFACTURING METHOD THROUGH OVD PROCESS WITH IMPROVED DEPOSITION EFFICIENCY

 #12
20230023064
2023-01-26

METHOD FOR MANUFACTURING OPTICAL FIBER GLASS PREFORM

 #13
20230020384
2023-01-19

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

 #14
20220340473
2022-10-27

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

 #15
20220098083
2022-03-31

Method for manufacturing optical fiber preform

 #16
20210405286
2021-12-30

Optical fiber with increased bend performance

 #17
20210387893
2021-12-16

Method of sintering glass preform with reduced helium consumption

 #18
20210214266
2021-07-15

ORGANIC GERMANIA AND SILICA SOURCES FOR MAKING OPTICAL FIBER PREFORMS

 #19
20210214265
2021-07-15

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

 #20
20210122664
2021-04-29

METHOD FOR MANUFACTURING GLASS PREFORM

 #21
20200270165
2020-08-27

Optical fiber and manufacturing method thereof

 #22
20200262736
2020-08-20

Method of producing optical fiber preform and optical fiber

 #23
20200249393
2020-08-06

Optical fiber

 #24
20200209475
2020-07-02

Method for modification of surface of optical fiber preform

 #25
20200048136
2020-02-13

Halogen-doped silica preforms for optical fibers

 #26
20200024176
2020-01-23

Viscocity-reducing dopants in optical fibers

 #27
20190369325
2019-12-05

High chlorine content low attenuation optical fiber

 #28
20190324195
2019-10-24

Optical fiber

 #29
20190292089
2019-09-26

OPTICAL FIBER BASE MATERIAL MANUFACTURING METHOD, OPTICAL FIBER BASE MATERIAL, AND OPTICAL FIBER

 #30
20190292088
2019-09-26

Method of sintering optical fiber porous glass base material

 #31
20190270662
2019-09-05

Method of manufacturing optical fiber preform and optical fiber preform

 #32
20190127264
2019-05-02

Halogen-doped silica for optical fiber preforms

 #33
20190119143
2019-04-25

Optical fiber preforms with halogen doping

 #34
20190084865
2019-03-21

Method for manufacturing a preform for optical fibers

 #35
20190062208
2019-02-28

Neutralizing gas system for furnace

 #36
20190004245
2019-01-03

Optical fibers having a varying clad index and methods of forming same

 #37
20180265395
2018-09-20

Method of manufacturing preforms for optical fibres having low attenuation loss

 #38
20180251391
2018-09-06

ROD BUNDLE AND METHOD OF MANUFACTURING OPTICAL FIBER

 #39
20180084609
2018-03-22

Millimeter wave heating of soot preform

 #40
20180079677
2018-03-22

Optical fibers having a varying clad index and methods of forming same

 #41
20180029921
2018-02-01

METHOD FOR PRODUCING GLASS PREFORM FOR OPTICAL FIBER

 #42
20180002221
2018-01-04

Low loss optical fibers with fluorine and chlorine codoped core regions

 #43
20170331245
2017-11-16

Optical tube waveguide lasing medium and related method

 #44
20170305781
2017-10-26

Optical fiber

 #45
20170253520
2017-09-07

Heat treatment apparatus

 #46
20170176673
2017-06-22

Bromine-doped optical fiber

 #47
20170168231
2017-06-15

High chlorine content low attenuation optical fiber

 #48
20170137316
2017-05-18

Method of producing optical fiber preform and optical fiber

 #49
20170129800
2017-05-11

Method of making optical fibers in a reducing atmosphere

 #50
20170101334
2017-04-13

METHOD OF MANUFACTURING OPTICAL FIBER PREFORM AND OPTICAL FIBER PREFORM

 #51
20160318793
2016-11-03

Optical fiber preform

 #52
20160318792
2016-11-03

PRODUCTION METHOD OF OPTICAL FIBER PREFORM AND PRODUCTION METHOD OF OPTICAL FIBER

 #53
20160304392
2016-10-20

Low loss optical fibers with fluorine and chlorine codoped core regions

 #54
20160304387
2016-10-20

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

 #55
20160200620
2016-07-14

Method for producing iron-doped silica glass

 #56
20160170137
2016-06-16

Low loss optical fiber and method of making the same

 #57
20160168007
2016-06-16

Method of making an optical fiber preform and handle for use in making of optical fiber preform

 #58
20160152510
2016-06-02

Method of making updoped cladding by using silicon tertrachloride as the dopant

 #59
20160130173
2016-05-12

OPTICAL FIBER GLASS BASE MATERIAL MANUFACTURING APPARATUS AND SINTERING METHOD

 #60
20160109651
2016-04-21

Low loss optical fiber and method of making the same

 #61
20160075591
2016-03-17

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

 #62
20160016839
2016-01-21

Method for the manufacture of doped quartz glass

 #63
20160011365
2016-01-14

High chlorine content low attenuation optical fiber

 #64
20160009589
2016-01-14

Method of making optical fibers in a reducing atmosphere

 #65
20160009588
2016-01-14

Optical fiber with reducing hydrogen sensitivity

 #66
20150336840
2015-11-26

Method of manufacturing preforms for optical fibres having low water peak

 #67
20150329404
2015-11-19

Method of producing glass preform and optical fiber

 #68
20150329403
2015-11-19

Method of manufacturing preforms for optical fibres having low water peak

 #69
20150316712
2015-11-05

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

 #70
20150315061
2015-11-05

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

 #71
20150307387
2015-10-29

Method for forming optical fiber and preforms

 #72
20150259238
2015-09-17

Hydrogen-supported fluorination of soot bodies

 #73
20150225280
2015-08-13

Method of making updoped cladding by using silicon tertrachloride as the dopant

 #74
20150143852
2015-05-28

Method for reducing processing time for optical fiber preforms

 #75
20150143851
2015-05-28

METHOD FOR PRODUCING A CYLINDRICAL COMPONENT FROM SYNTHETIC QUARTZ GLASS CONTAINING FLUORINE

 #76
20150023642
2015-01-22

High bandwidth MMF and method of making

 #77
20140174133
2014-06-26

METHODS FOR FORMING OPTICAL FIBER PREFORMS WITH SELECTIVE DIFFUSION LAYERS

 #78
20140140673
2014-05-22

METHOD OF MANUFACTURING OPTICAL FIBER PREFORM, AND OPTICAL FIBER

 #79
20130272670
2013-10-17

Low macrobending loss single-mode optical fibre

 #80
20130251322
2013-09-26

Method of manufacturing glass preform

 #81
20130205834
2013-08-15

Porous glass base material sintering method

 #82
20130089296
2013-04-11

Multi-mode optical fiber

 #83
20130036770
2013-02-14

METHOD FOR PRODUCING GLASS BASE MATERIAL

 #84
20130025326
2013-01-31

METHODS FOR MANUFACTURING LOW WATER PEAK OPTICAL WAVEGUIDE

 #85
20130000840
2013-01-03

Methods for producing optical fiber preforms with low index trenches

 #86
20120304701
2012-12-06

MANUFACTURING METHOD OF OPTICAL FIBER BASE MATERIAL POSSESSING LOW REFRACTIVE INDEX PORTION DISTANTLY-POSITIONED FROM CORE

 #87
20120297837
2012-11-29

METHOD FOR PRODUCING GLASS PREFORM

 #88
20120291494
2012-11-22

Manufacturing method for glass base material

 #89
20120279258
2012-11-08

METHOD OF DEHYDRATING AND SINTERING POROUS PREFORM FOR OPTICAL FIBER AND DEHYDRATION-SINTERING FURNACE

 #90
20120231943
2012-09-13

METHOD OF MANUFACTURING FLUORINE-CONTAINING OPTICAL FIBER BASE MATERIAL AND FLUORINE-CONTAINING OPTICAL FIBER BASE MATERIAL

 #91
20120202674
2012-08-09

Treatment of silica based soot or an article made of silica based soot

 #92
20120118020
2012-05-17

Method of producing optical fiber preform and optical fiber

 #93
20120118019
2012-05-17

METHOD OF PRODUCING OPTICAL FIBER

 #94
20120118018
2012-05-17

OPTICAL FIBER PREFORM, METHOD OF MANUFACTURING OPTICAL FIBER PREFORM, AND METHOD OF MANUFACTURING OPTICAL FIBER

 #95
20120114292
2012-05-10

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

 #96
20120069858
2012-03-22

Photodarkening resistant optical fibers and fiber lasers incorporating the same

 #97
20120055199
2012-03-08

Method of manufacturing optical fiber preform

 #98
20120000249
2012-01-05

Method for producing optical fiber preform

 #99
20110268399
2011-11-03

Optical fiber with differential birefringence mechanism

 #100
20110244154
2011-10-06

METHOD AND CYLINDRICAL SEMI-FINISHED PRODUCT FOR PRODUCING AN OPTICAL COMPONENT

 #101
20110176783
2011-07-21

Optical fiber and method for fabricating the same

 #102
20110167874
2011-07-14

Methods for manufacturing low water peak optical waveguide incorporating a porous core mandrel

 #103
20110162413
2011-07-07

Method of manufacturing optical fiber base material

 #104
20110103758
2011-05-05

OPTICAL FIBER AND METHOD OF MANUFACTURING THE SAME

 #105
20110100064
2011-05-05

METHOD AND APPARATUS FOR MANUFACTURING AN OPTICAL FIBER CORE ROD

 #106
20110072852
2011-03-31

Method for the production of a cylinder made from quartz glass using a retaining device, and retaining device

 #107
20100310219
2010-12-09

Microstructured transmission optical fiber

 #108
20100307197
2010-12-09

Method for producing a cylinder from synthetic quartz glass

 #109
20100294002
2010-11-25

OPTICAL FIBER PREFORM MANUFACTURING METHOD

 #110
20100247048
2010-09-30

Optical fiber and method for fabricating the same

 #111
20100154480
2010-06-24

Method of manufacturing optical fiber base material

 #112
20100126217
2010-05-27

Method for producing a cylinder of quartz glass using a holding device and appropriate holding device for performing the method

 #113
20100122558
2010-05-20

Apparatus and Method of Sintering an Optical Fiber Preform

 #114
20100029458
2010-02-04

Method of heat treating a porous optical fiber preform

 #115
20100024486
2010-02-04

METHOD OF PRODUCING OPTICAL FIBER PREFORM

 #116
20090324816
2009-12-31

Low Permeability Gas Recycling in Consolidation

 #117
20090211302
2009-08-27

Method of manufacturing optical fiber base material and apparatus of the same

 #118
20090032983
2009-02-05

Method of making an optical fiber having voids

 #119
20080285927
2008-11-20

Single Mode Optical Fiber Having Reduced Macrobending and Attenuation Loss and Method for Manufacturing the Same

 #120
20080276650
2008-11-13

Microstructured optical fibers and methods

 #121
20080202166
2008-08-28

METHOD OF DEHYDRATING AND SINTERING POROUS PREFORM FOR OPTICAL FIBER AND DEHYDRATION-SINTERING FURNACE

 #122
20080131066
2008-06-05

Microstructured transmission optical fiber

 #123
20080080823
2008-04-03

Rare earth doped optical fiber

 #124
20080034800
2008-02-14

Process for producing a low-attenuation optical fiber

 #125
20080028798
2008-02-07

Method of making glass

 #126
20080013901
2008-01-17

Macro-bending insensitive optical fiber

 #127
20080011019
2008-01-17

METHOD OF MANUFACTURING OPTICAL FIBER PREFORM AND METHOD OF DETERMINING DEHYDRATED CONDITION OF POROUS GLASS PREFORM

 #128
20070297735
2007-12-27

Optical fiber containing alkali metal oxide

 #129
20070274666
2007-11-29

Radiation resistant single-mode optical fiber and method of manufacturing thereof

 #130
20070271959
2007-11-29

Method of Manufacturing Glass Base Material

 #131
20070261442
2007-11-15

Method for producing synthetic quartz glass with predetermined hydroxyl group content

 #132
20070193306
2007-08-23

Sintering method and sintering apparatus of porous glass base material

 #133
20070193305
2007-08-23

Method for blending and recirculating deuterium-containing gas

 #134
20070157674
2007-07-12

Apparatus for fabricating optical fiber preform and method for fabricating low water peak fiber using the same

 #135
20070147753
2007-06-28

Optical fiber and method for fabricating same

 #136
20070125129
2007-06-07

Optical fiber having low and uniform optical loss along the entire length and method for fabricating the same

 #137
20070104437
2007-05-10

Microstructured optical fibers and methods

 #138
20070062223
2007-03-22

Optical fiber having reduced polarization mode dispersion (PMD) and method for producing the same

 #139
20070022787
2007-02-01

Optical fiber with low attenuation at 1380 nm wavelength region and the method of producing the same

 #140
20070003466
2007-01-04

Method for producing tetrafluorosilane

 #141
20060179889
2006-08-17

Method for dehydrating and consolidating a porous optical fiber preform

 #142
20060130529
2006-06-22

Methods and apparatus for processing soot articles

 #143
20060115913
2006-06-01

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

 #144
20060088262
2006-04-27

Rare earth doped single polarization double clad optical fiber with plurality of air holes

 #145
20060088261
2006-04-27

Rare earth doped single polarization double clad optical fiber and a method for making such fiber

 #146
20060075786
2006-04-13

Methods for manufacturing low water peak optical waveguide incorporating a porous core mandrel

 #147
20050274151
2005-12-15

Method of manufacturing single mode optical fiber

 #148
20050244119
2005-11-03

Method of manufacturing fluorine doped silica glass article, and method of manufacturing optical fiber preform and optical fiber using the method, and optical fiber made by such method

 #149
20050229639
2005-10-20

Optical fiber preform, method for manufacturing thereof, and optical fiber obtained by drawing thereof

 #150
20050218371
2005-10-06

Heat transfer fluids and methods of making and using same

 #151
20050214543
2005-09-29

Optical fiber preform and the method of producing the same

 #152
20050191019
2005-09-01

Low water peak optical waveguide fiber

 #153
20050185908
2005-08-25

Hollow-core optical fiber and method of making same

 #154
20050172676
2005-08-11

Method for the production of a cylindrical quartz glass body having a low oh content

 #155
20050163443
2005-07-28

Method of controllably doping a glassy optical preform with water

 #156
20050147367
2005-07-07

Method for manufacturing base material for optical fiber, apparatus therefor, and base material manufactured by the same

 #157
20050129376
2005-06-16

Alkali-doped optical fiber preform and method of making same

 #158
20050063663
2005-03-24

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

 #159
20050022562
2005-02-03

Isotopically altered optical fiber

 #160
20050011353
2005-01-20

Method for the recovery and recycle of helium and chlorine

 #161
20050011230
2005-01-20

Method for blending and recirculating deuterium-containing gas