ClassID:

87249

C03B37/01473 - 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 Collapsing

Recent Application in this class:
#1
20230202904
2023-06-29

METHOD FOR PRODUCING OPTICAL FIBER BASE MATERIAL, AND OPTICAL FIBER BASE MATERIAL

#2
20200270165
2020-08-27

Optical fiber and manufacturing method thereof

#3
20200024176
2020-01-23

Viscocity-reducing dopants in optical fibers

#4
20190292089
2019-09-26

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

#5
20190084865
2019-03-21

Method for manufacturing a preform for optical fibers

#6
20180370841
2018-12-27

METHOD FOR MANUFACTURING OPTICAL FIBER PREFORM, METHOD FOR MANUFACTURING OPTICAL FIBER, AND METHOD FOR DOPING SILICA GLASS

#7
20180282199
2018-10-04

Method for manufacturing a glass core preform for optical fibres

#8
20180265395
2018-09-20

Method of manufacturing preforms for optical fibres having low attenuation loss

#9
20170305781
2017-10-26

Optical fiber

#10
20170015581
2017-01-19

Method for preparing a primary preform by etching and collapsing a deposited tube

#11
20160318793
2016-11-03

Optical fiber preform

#12
20150316712
2015-11-05

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

#13
20150143852
2015-05-28

Method for reducing processing time for optical fiber preforms

#14
20130036770
2013-02-14

METHOD FOR PRODUCING GLASS BASE MATERIAL

#15
20120297837
2012-11-29

METHOD FOR PRODUCING GLASS PREFORM

#16
20120291494
2012-11-22

Manufacturing method for glass base material

#17
20110100064
2011-05-05

METHOD AND APPARATUS FOR MANUFACTURING AN OPTICAL FIBER CORE ROD

#18
20080034800
2008-02-14

Process for producing a low-attenuation optical fiber

#19
20070125129
2007-06-07

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

#20
20070062223
2007-03-22

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

#21
20070022787
2007-02-01

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

#22
20060140560
2006-06-29

Optical fiber and a method for fabricating a low polarization-mode dispersion and low attenuation optical fiber

#23
20050284184
2005-12-29

Methods for optical fiber manufacture

#24
20050063663
2005-03-24

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