ClassID:

87259

C03B37/01853 - 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] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering

Recent Application in this class:
#1
20260145984
2026-05-28

EXPANDING TIP PLUGS AND METHOD OF USING AND MAKING THE SAME

#2
20250326679
2025-10-23

MANUFACTURING METHOD OF OPTICAL FIBER BASE MATERIAL

#3
20240360025
2024-10-31

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

#4
20240360024
2024-10-31

CLEANING STEP TO REMOVE METALS OR METAL OXIDES FROM POROUS GLASS BODY

#5
20240034667
2024-02-01

METHOD FOR MAKING HALOGEN DOPED OPTICAL ELEMENT

#6
20220234935
2022-07-28

Sintering method of porous glass base material for optical fiber

#7
20220185720
2022-06-16

Process for the preparation of synthetic quartz glass

#8
20220033294
2022-02-03

METHOD FOR MANUFACTURING GLASS FINE PARTICLE DEPOSIT AND METHOD FOR MANUFACTURING GLASS BASE MATERIAL

#9
20210047226
2021-02-18

Method for fabrication of optical fibre soot preform

#10
20200048137
2020-02-13

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

#11
20190375672
2019-12-12

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

#12
20190369325
2019-12-05

High chlorine content low attenuation optical fiber

#13
20190248695
2019-08-15

Manufacturing method of optical fiber preform

#14
20190177204
2019-06-13

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

#15
20190127264
2019-05-02

Halogen-doped silica for optical fiber preforms

#16
20190084865
2019-03-21

Method for manufacturing a preform for optical fibers

#17
20180251397
2018-09-06

Optical fiber with low loss and nanoscale structurally homogeneous core

#18
20170362115
2017-12-21

METHOD OF MAKING HALOGEN DOPED OPTICAL ELEMENT

#19
20170240454
2017-08-24

Layered glass structures

#20
20170205574
2017-07-20

Optical fiber and method of producing an optical fiber

#21
20170168231
2017-06-15

High chlorine content low attenuation optical fiber

#22
20170068045
2017-03-09

Optical fiber having a cladding layer doped with metal nano-particles, coreless optical fiber, and method for manufacturing same

#23
20160170137
2016-06-16

Low loss optical fiber and method of making the same

#24
20160109651
2016-04-21

Low loss optical fiber and method of making the same

#25
20160083284
2016-03-24

Process for fabrication of ytterbium doped optical fiber

#26
20160011365
2016-01-14

High chlorine content low attenuation optical fiber

#27
20150336840
2015-11-26

Method of manufacturing preforms for optical fibres having low water peak

#28
20150329404
2015-11-19

Method of producing glass preform and optical fiber

#29
20150316712
2015-11-05

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

#30
20150315061
2015-11-05

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

#31
20150284286
2015-10-08

METHOD FOR MAKING PREFORMS AND OPTICAL FIBERS

#32
20140060118
2014-03-06

Pressed, multilayered silica soot preforms for the manufacture of single sinter step, complex refractive index profile optical fiber

#33
20120189262
2012-07-26

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

#34
20120114292
2012-05-10

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

#35
20120014653
2012-01-19

Manufacturing method for optical fiber preform and optical fiber

#36
20110262749
2011-10-27

THERMAL INSULATOR, THERMAL INSULATING COMPONENT, METHOD OF MANUFACTURING THERMAL INSULATING SMALL FIBER AND METHOD OF MANUFACTURING THERMAL INSULATOR

#37
20110138861
2011-06-16

OPTICAL FIBER MANUFACTURING METHOD AND APPARATUS

#38
20110091175
2011-04-21

Single mode optical fiber with improved bend performance

#39
20100276822
2010-11-04

RARE EARTH-DOPED CORE OPTICAL FIBER AND MANUFACTURING METHOD THEREOF

#40
20100118388
2010-05-13

Amplifying optical fiber and method of manufacturing

#41
20090324816
2009-12-31

Low Permeability Gas Recycling in Consolidation

#42
20090317042
2009-12-24

Rare earth-doped core optical fiber and manufacturing method thereof

#43
20090180174
2009-07-16

RARE-EARTH-DOPED OPTICAL FIBER, OPTICAL FIBER AMPLIFIER, AND METHOD OF MANUFACTURING A PREFORM FOR SUCH FIBER

#44
20090133445
2009-05-28

Method for manufacturing glass body and method for manufacturing optical fiber

#45
20090126408
2009-05-21

Methods for making optical fiber preforms and microstructured optical fibers

#46
20080273849
2008-11-06

Single mode optical fiber with improved bend performance

#47
20080271495
2008-11-06

Reduction of optical fiber cane/preform deformation in consolidation

#48
20080050086
2008-02-28

Optical fiber containing alkali metal oxide

#49
20080050079
2008-02-28

Low attenuation optical fiber and its producing method in MCVD

#50
20080038524
2008-02-14

Selective Doping of a Material

#51
20070218290
2007-09-20

Method for Doping Material and Doped Material

#52
20060179888
2006-08-17

Manufacture of optical fibers using enhanced doping

#53
20050163443
2005-07-28

Method of controllably doping a glassy optical preform with water

#54
20050152653
2005-07-14

Method of manufacturing optical fiber preform using modified chemical vapor deposition including dehydration and dechlorination process and optical fiber manufactured by the method

#55
20050081566
2005-04-21

Method for manufacturing a bar-shaped preform as well as a method for manufacturing optical fibres from such a bar-shaped preform

#56
20050063663
2005-03-24

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

#57
20050022562
2005-02-03

Isotopically altered optical fiber

#58
20050000253
2005-01-06

Method of manufacture of low water peak single mode optical fiber

#59
20050000252
2005-01-06

Method and apparatus for fabricating optical fiber preform using double torch in mcvd