ClassID:

87248

C03B37/01466 - 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] Means for changing or stabilising the diameter or form of tubes or rods

Sub-classes:
Recent Application in this class:
#1
20200262736
2020-08-20

Method of producing optical fiber preform and optical fiber

#2
20190062208
2019-02-28

Neutralizing gas system for furnace

#3
20190004245
2019-01-03

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

#4
20180362392
2018-12-20

Optical fiber

#5
20170362113
2017-12-21

Method for forming a glass preform

#6
20170305781
2017-10-26

Optical fiber

#7
20170137316
2017-05-18

Method of producing optical fiber preform and optical fiber

#8
20160214884
2016-07-28

METHOD FOR PRODUCING SILICA GLASS PREFORM FOR OPTICAL FIBER

#9
20160075591
2016-03-17

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

#10
20150316712
2015-11-05

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

#11
20130205833
2013-08-15

Glass base material elongating method

#12
20130036770
2013-02-14

METHOD FOR PRODUCING GLASS BASE MATERIAL

#13
20130000840
2013-01-03

Methods for producing optical fiber preforms with low index trenches

#14
20120297837
2012-11-29

METHOD FOR PRODUCING GLASS PREFORM

#15
20120291494
2012-11-22

Manufacturing method for glass base material

#16
20120186303
2012-07-26

Optical fiber and method of manufacturing optical fiber preform

#17
20120055199
2012-03-08

Method of manufacturing optical fiber preform

#18
20110167874
2011-07-14

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

#19
20110162413
2011-07-07

Method of manufacturing optical fiber base material

#20
20110011135
2011-01-20

METHOD OF MAKING A GLASS PREFORM

#21
20100236292
2010-09-23

Process for manufacturing a low-attenuation optical fiber

#22
20100186453
2010-07-29

METHOD FOR THE PRODUCTION OF A BLANK MOLD FOR OPTICAL FIBERS

#23
20100081554
2010-04-01

Method for producing a hollow cylinder of synthetic quartz glass, and thickwalled hollow cylinder obtained according to the method

#24
20100034998
2010-02-11

Quartz glass tube as a semifinished product for preform and fiber manufacture, and method for making the quartz glass tube

#25
20090272716
2009-11-05

Process for preparing an optical preform

#26
20090260400
2009-10-22

Method for Producing a Tubular Semifinished Product From Fluorine-Doped Quartz Glass

#27
20090208760
2009-08-20

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

#28
20080292251
2008-11-27

Polarization-maintaining optical fiber, method of manufacturing polarization-maintaining optical-fiber connecting portion, and polarization-maintaining optical-fiber connecting portion

#29
20080276650
2008-11-13

Microstructured optical fibers and methods

#30
20080013901
2008-01-17

Macro-bending insensitive optical fiber

#31
20070157674
2007-07-12

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

#32
20070137258
2007-06-21

Elongating method of optical fiber base material

#33
20070125128
2007-06-07

Optical fiber perform cone shaping or preparation method

#34
20070079635
2007-04-12

Apparatus and method for preparing optical fiber preform having desired cone shape

#35
20070062337
2007-03-22

Method and apparatus for drilling preforms for holey optical fibers

#36
20060245705
2006-11-02

Method of making optical fiber and optical fiber made by the method

#37
20060213230
2006-09-28

METHOD OF MANUFACTURING MICROSTRUCTURED OPTICAL FIBER

#38
20060213228
2006-09-28

Method for the production of a blank mold for optical fibers

#39
20060191296
2006-08-31

Preform and method for manufacturing same

#40
20060075786
2006-04-13

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

#41
20060045446
2006-03-02

Optical fiber with birefringence and large mode field diameter

#42
20050214543
2005-09-29

Optical fiber preform and the method of producing the same

#43
20050147367
2005-07-07

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

#44
20050123256
2005-06-09

Method of manufacturing a glass based material with defect removal

#45
20050063663
2005-03-24

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

#46
20050063654
2005-03-24

Low loss optical fiber and method for fabricating an optical fiber preform

#47
20050031279
2005-02-10

Optical fiber preform, optical fiber, and manufacturing methods thereof