ClassID:

87247

C03B37/0146 - 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 Furnaces therefor, e.g. muffle tubes, furnace linings

Recent Application in this class:
#1
20250091933
2025-03-20

APPARATUS FOR DRYING AND/OR CONSOLIDATING A PREFORM FOR OPTICAL FIBRES

#2
20250034024
2025-01-30

METHOD FOR MANUFACTURING OPTICAL FIBER

#3
20240327267
2024-10-03

OPTICAL FIBER AND A GLASS PREFORM MANUFACTURING METHOD

#4
20240092681
2024-03-21

OPTICAL FIBER PREFORM AND MANUFACTURING METHOD THEREOF

#5
20240069272
2024-02-29

MICROSTRUCTURED OPTICAL FIBER AND PREFORM FOR SAME

#6
20230382781
2023-11-30

Apparatus for drying and/or consolidating a preform for optical fibres

#7
20220234935
2022-07-28

Sintering method of porous glass base material for optical fiber

#8
20220081345
2022-03-17

MANUFACTURING METHOD OF GLASS BASE MATERIAL FOR OPTICAL FIBER

#9
20220073405
2022-03-10

HEATING APPARATUS AND METHOD FOR MANUFACTURING OPTICAL FIBER BASE MATERIAL

#10
20200283328
2020-09-10

Glass body manufacturing apparatus, glass body manufacturing method, soot conveying mechanism, and soot heating mechanism

#11
20200166706
2020-05-28

System and method for positioning an optical preform in a furnace

#12
20200131073
2020-04-30

Method for manufacturing a glass preform for optical fibers

#13
20200031706
2020-01-30

Method and apparatus for drying and consolidating a preform for optical fibres

#14
20190292088
2019-09-26

Method of sintering optical fiber porous glass base material

#15
20190062208
2019-02-28

Neutralizing gas system for furnace

#16
20180031767
2018-02-01

System and method for positioning an optical preform in a furnace

#17
20170253520
2017-09-07

Heat treatment apparatus

#18
20160318792
2016-11-03

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

#19
20160280583
2016-09-29

Sintering apparatus and method for sintering

#20
20160130173
2016-05-12

OPTICAL FIBER GLASS BASE MATERIAL MANUFACTURING APPARATUS AND SINTERING METHOD

#21
20160016839
2016-01-21

Method for the manufacture of doped quartz glass

#22
20160009588
2016-01-14

Optical fiber with reducing hydrogen sensitivity

#23
20150336840
2015-11-26

Method of manufacturing preforms for optical fibres having low water peak

#24
20150329403
2015-11-19

Method of manufacturing preforms for optical fibres having low water peak

#25
20150316712
2015-11-05

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

#26
20150274576
2015-10-01

Sintering apparatus and sintering method for glass preform for optical fiber

#27
20140345332
2014-11-27

Apparatus for sintering a glass preform for an optical fiber and sintering method thereof

#28
20130340483
2013-12-26

Graphite heating furnace

#29
20130333421
2013-12-19

Process for producing optical fiber and processing apparatus for optical fiber work used for the same

#30
20130298611
2013-11-14

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

#31
20130251322
2013-09-26

Method of manufacturing glass preform

#32
20130205834
2013-08-15

Porous glass base material sintering method

#33
20130186147
2013-07-25

Porous glass base material thermal insulating member and sintering method

#34
20130098116
2013-04-25

Muffle tube inspection method and manufacturing method of silica glass-based optical fiber preform

#35
20120279258
2012-11-08

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

#36
20120118018
2012-05-17

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

#37
20110222575
2011-09-15

Furnace for dehydrating and sintering porous glass preform

#38
20110162413
2011-07-07

Method of manufacturing optical fiber base material

#39
20110100064
2011-05-05

METHOD AND APPARATUS FOR MANUFACTURING AN OPTICAL FIBER CORE ROD

#40
20110000262
2011-01-06

METHOD FOR DEHYDRATING AND SINTERING POROUS BASE MATERIAL FOR OPTICAL FIBER

#41
20100154480
2010-06-24

Method of manufacturing optical fiber base material

#42
20100122558
2010-05-20

Apparatus and Method of Sintering an Optical Fiber Preform

#43
20090211302
2009-08-27

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

#44
20090165502
2009-07-02

Method for manufacturing optical fiber preform and optical fiber preform apparatus

#45
20090100876
2009-04-23

METHOD OF MANUFACTURING OPTICAL FIBER BASE MATERIAL AND APPARATUS OF THE SAME

#46
20080276650
2008-11-13

Microstructured optical fibers and methods

#47
20080202166
2008-08-28

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

#48
20080092598
2008-04-24

DEHYDRATION-SINTERING FURNACE, A MANUFACTURING METHOD OF AN OPTICAL FIBER PREFORM UTILIZING THE FURNACE AND AN OPTICAL FIBER PREFORM MANUFACTURED BY THE METHOD

#49
20070193306
2007-08-23

Sintering method and sintering apparatus of porous glass base material

#50
20070180862
2007-08-09

Graphite heating furnace

#51
20060242998
2006-11-02

Preform consolidation process

#52
20060191296
2006-08-31

Preform and method for manufacturing same

#53
20060179889
2006-08-17

Method for dehydrating and consolidating a porous optical fiber preform

#54
20060162390
2006-07-27

Method and apparatus for sintering porous optical fiber preforms

#55
20060130529
2006-06-22

Methods and apparatus for processing soot articles

#56
20060130524
2006-06-22

Method and apparatus for making optical fibres

#57
20060117801
2006-06-08

Method for manufacturing optical fiber preform and optical fiber preform apparatus

#58
20060115913
2006-06-01

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

#59
20060112733
2006-06-01

Equipment and method for manufacturing a glass preform

#60
20060112732
2006-06-01

Method and apparatus for heating porous preform

#61
20050257571
2005-11-24

Method and apparatus for manufacturing a glass preform

#62
20050191019
2005-09-01

Low water peak optical waveguide fiber

#63
20050172676
2005-08-11

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

#64
20050166640
2005-08-04

Dehydration-sintering furnace, a manufacturing method of an optical fiber preform utilizing the furnace and an optical fiber preform manufactured by the method

#65
20050155388
2005-07-21

Method of forming optical fiber preforms

#66
20050144988
2005-07-07

Apparatus for heating optical fiber preform and method for manufacturing optical fiber preform

#67
20050120753
2005-06-09

Dehydration-sintering furnace

#68
20050120752
2005-06-09

Substantially dry, silica-containing soot, fused silica and optical fiber soot preforms, apparatus, methods and burners for manufacturing same

#69
20050097923
2005-05-12

System and support rod assembly for sintering fiber optic sleeve tubes

#70
20050076680
2005-04-14

Method and apparatus for manufacturing optical fiber preforms using the outside vapor deposition process

#71
20050063663
2005-03-24

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