ClassID:

87246

C03B37/01453 - 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 for doping the preform with flourine

Recent Application in this class:
#1
20250271612
2025-08-28

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

#2
20250091932
2025-03-20

SILICA GLASS BODY MANUFACTURING METHOD AND HEATING DEVICE

#3
20240034667
2024-02-01

METHOD FOR MAKING HALOGEN DOPED OPTICAL ELEMENT

#4
20230382780
2023-11-30

METHOD FOR MANUFACTURING FLUORINE-CONTAINING SILICA GLASS

#5
20230339797
2023-10-26

METHOD FOR PRODUCING FLUORINE-CONTAINING SILICA GLASS

#6
20230167003
2023-06-01

METHOD FOR PRODUCING OPTICAL FIBER PREFORM, AND OPTICAL FIBER PREFORM

#7
20230023064
2023-01-26

METHOD FOR MANUFACTURING OPTICAL FIBER GLASS PREFORM

#8
20220340473
2022-10-27

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

#9
20220081345
2022-03-17

MANUFACTURING METHOD OF GLASS BASE MATERIAL FOR OPTICAL FIBER

#10
20210349257
2021-11-11

Optical fiber with nitrogen and chlorine co-doped core

#11
20210214265
2021-07-15

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

#12
20210130220
2021-05-06

Method for producing optical fiber preform, and optical fiber preform

#13
20200339465
2020-10-29

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

#14
20200131073
2020-04-30

Method for manufacturing a glass preform for optical fibers

#15
20200049881
2020-02-13

Halogen co-doped optical fibers

#16
20190369325
2019-12-05

High chlorine content low attenuation optical fiber

#17
20190127264
2019-05-02

Halogen-doped silica for optical fiber preforms

#18
20190119143
2019-04-25

Optical fiber preforms with halogen doping

#19
20190084865
2019-03-21

Method for manufacturing a preform for optical fibers

#20
20180282199
2018-10-04

Method for manufacturing a glass core preform for optical fibres

#21
20180084609
2018-03-22

Millimeter wave heating of soot preform

#22
20180002221
2018-01-04

Low loss optical fibers with fluorine and chlorine codoped core regions

#23
20170371096
2017-12-28

Optical fiber

#24
20170363806
2017-12-21

Methods of manufacturing wide-band multi-mode optical fibers and core preforms for the same using specific fluorine doping parameter and 850 nm alpha profile

#25
20170176673
2017-06-22

Bromine-doped optical fiber

#26
20170168231
2017-06-15

High chlorine content low attenuation optical fiber

#27
20160304392
2016-10-20

Low loss optical fibers with fluorine and chlorine codoped core regions

#28
20160304387
2016-10-20

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

#29
20160214884
2016-07-28

METHOD FOR PRODUCING SILICA GLASS PREFORM FOR OPTICAL FIBER

#30
20160170137
2016-06-16

Low loss optical fiber and method of making the same

#31
20160152510
2016-06-02

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

#32
20160109651
2016-04-21

Low loss optical fiber and method of making the same

#33
20160075591
2016-03-17

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

#34
20160016839
2016-01-21

Method for the manufacture of doped quartz glass

#35
20150329404
2015-11-19

Method of producing glass preform and optical fiber

#36
20150225280
2015-08-13

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

#37
20150143852
2015-05-28

Method for reducing processing time for optical fiber preforms

#38
20150143851
2015-05-28

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

#39
20150023642
2015-01-22

High bandwidth MMF and method of making

#40
20140352361
2014-12-04

Method for making low bend loss optical fiber preforms

#41
20140174133
2014-06-26

METHODS FOR FORMING OPTICAL FIBER PREFORMS WITH SELECTIVE DIFFUSION LAYERS

#42
20130291602
2013-11-07

OPTICAL FIBER PREFORM MANUFACTURING METHOD

#43
20130000840
2013-01-03

Methods for producing optical fiber preforms with low index trenches

#44
20120321891
2012-12-20

MANUFACTURING METHOD OF POROUS SILICA BODY, MANUFACTURING METHOD OF OPTICAL FIBER PREFORM, POROUS SILICA BODY, AND OPTICAL FIBER PREFORM

#45
20120304701
2012-12-06

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

#46
20120231943
2012-09-13

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

#47
20120118018
2012-05-17

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

#48
20100310219
2010-12-09

Microstructured transmission optical fiber

#49
20090208760
2009-08-20

ENERGY-TRANSMITTING OR ULTRAVIOLET LIGHT-TRANSMITTING OPTICAL FIBER PREFORM AND PRODUCTION PROCESS THEREOF

#50
20080271495
2008-11-06

Reduction of optical fiber cane/preform deformation in consolidation

#51
20080131066
2008-06-05

Microstructured transmission optical fiber

#52
20080050086
2008-02-28

Optical fiber containing alkali metal oxide

#53
20080028798
2008-02-07

Method of making glass

#54
20070297735
2007-12-27

Optical fiber containing alkali metal oxide

#55
20070274666
2007-11-29

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

#56
20070003466
2007-01-04

Method for producing tetrafluorosilane

#57
20060115913
2006-06-01

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