ClassID:

87214

C03B37/01231 - 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 starting from tubes, rods, fibres or filaments; Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing; Removal of preform material to form a longitudinal hole, e.g. by drilling

Recent Application in this class:
#1
20250178946
2025-06-05

METHOD OF FORMING A MULTICORE PREFORM AND FIBER

#2
20240217860
2024-07-04

PROCESS OF MAKING MULTI-CORE FIBER PREFORM BY INTEGRATING CORE RODS AND CLADDING CYLINDER

#3
20240085618
2024-03-14

POLARIZATION MAINTAINING OPTICAL FIBER AND POLARIZATION MAINTAINING OPTICAL FIBER MANUFACTURING METHOD

#4
20240043311
2024-02-08

COUNTERWEIGHT AND ATTACHMENT COMPOUND

#5
20220306516
2022-09-29

Vacuum-based methods of forming a cane-based optical fiber preform and methods of forming an optical fiber using same

#6
20200277219
2020-09-03

Vacuum-based methods of forming a cane-based optical fiber preform and methods of forming an optical fiber using same

#7
20200262736
2020-08-20

Method of producing optical fiber preform and optical fiber

#8
20190302356
2019-10-03

Method for producing multicore optical fiber and multicore optical fiber

#9
20190170933
2019-06-06

Preform for producing vortex fiber

#10
20180244557
2018-08-30

Production method for multicore optical fiber

#11
20180244556
2018-08-30

Production method for multicore optical fiber

#12
20170233283
2017-08-17

System and method for producing vortex fiber

#13
20170137316
2017-05-18

Method of producing optical fiber preform and optical fiber

#14
20160229733
2016-08-11

Preform manufacturing method

#15
20150323736
2015-11-12

Multicore fiber and method of manufacturing the same

#16
20150307387
2015-10-29

Method for forming optical fiber and preforms

#17
20130291603
2013-11-07

Optical fiber article for handling higher power and method of fabricating or using

#18
20120118020
2012-05-17

Method of producing optical fiber preform and optical fiber

#19
20120118019
2012-05-17

METHOD OF PRODUCING OPTICAL FIBER

#20
20110268399
2011-11-03

Optical fiber with differential birefringence mechanism

#21
20100326139
2010-12-30

Optical fiber preform manufacturing method

#22
20100008634
2010-01-14

OPTICAL FIBER ARTICLE FOR HANDLING HIGHER POWER AND METHOD OF FABRICATING OR USING

#23
20080107385
2008-05-08

Optical fiber and manufacturing method thereof

#24
20070089462
2007-04-26

Optical fiber

#25
20070062337
2007-03-22

Method and apparatus for drilling preforms for holey optical fibers

#26
20060078009
2006-04-13

Optical fiber, optical fiber amplifier, and optical fiber laser light source

#27
20050185908
2005-08-25

Hollow-core optical fiber and method of making same

#28
20050100306
2005-05-12

Method for producing base material for optical fiber having deformed first clad, base material for optical fiber and optical fiber

#29
20050034484
2005-02-17

Preparing preforms for fibre fabrication

#30
20050031867
2005-02-10

Optical fibers with improved resistance to ingressing molecules