ClassID:

87219

C03B37/01245 - 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; Means for reducing the diameter of rods or tubes by drawing, e.g. for preform draw-down by drawing and collapsing

Recent Application in this class:
#1
20260016630
2026-01-15

ANTI-RESONANCE PREFORM WITH TWO CONTACT POINTS

#2
20250236551
2025-07-24

METHOD FOR MANUFACTURING OPTICAL FIBER

#3
20250076570
2025-03-06

ANTI-RESONANCE PREFORM WITH TWO CONTACT POINTS

#4
20240383796
2024-11-21

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

#5
20240217860
2024-07-04

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

#6
20240101464
2024-03-28

METHOD FOR PRODUCING A PREFORM FOR AN ANTI-RESONANT HOLLOW-CORE FIBER HAVING NESTED CAPILLARIES; PREFORM AND INTERMEDIATE PRODUCT

#7
20240043313
2024-02-08

ALKALI DOPED OPTICAL FIBER WITH REDUCED ATTENUATION

#8
20230167016
2023-06-01

RECOVERY AND REUSE METHOD OF QUARTZ POWDER WASTE IN OUTSIDE-OF-TUBE DEPOSITION PROCESS

#9
20220357506
2022-11-10

Methods for producing a hollow-core fiber and for producing a preform for a hollow-core fiber

#10
20220315474
2022-10-06

Preform assembly for drawing multicore or holey optical fibre and method of manufacturing thereof

#11
20220291443
2022-09-15

Methods for producing a hollow-core fiber and for producing a preform for a hollow-core fiber

#12
20220286204
2022-09-08

Upward collapse process and apparatus for making glass preforms

#13
20220244453
2022-08-04

Methods for producing a hollow-core fiber and for producing a preform for a hollow-core fiber

#14
20220242773
2022-08-04

METHODS FOR PRODUCING A HOLLOW-CORE FIBER AND FOR PRODUCING A PREFORM FOR A HOLLOW-CORE FIBER

#15
20210070647
2021-03-11

Method for sintering of optical fibre preform

#16
20190359516
2019-11-28

Device, system, and method for forming a core-rod for optical fibers

#17
20190270662
2019-09-05

Method of manufacturing optical fiber preform and optical fiber preform

#18
20180362392
2018-12-20

Optical fiber

#19
20180145752
2018-05-24

Upward collapse process and apparatus for making glass preforms

#20
20180079676
2018-03-22

Perforated quartz glass tube and method for manufacturing perforated quartz glass tube

#21
20180072608
2018-03-15

Method for inserting a core rod into an outer cladding tube with spacer

#22
20170001901
2017-01-05

Method for producing a substrate tube of quartz glass

#23
20160229733
2016-08-11

Preform manufacturing method

#24
20160214884
2016-07-28

METHOD FOR PRODUCING SILICA GLASS PREFORM FOR OPTICAL FIBER

#25
20140370287
2014-12-18

METHOD FOR PRODUCING OPTICAL FIBER PREFORM, OPTICAL FIBER PREFORM, AND OPTICAL FIBER

#26
20140174134
2014-06-26

System and method for fabricating optical fiber preform and optical fiber

#27
20140119692
2014-05-01

Optical fiber and method for manufacturing same

#28
20120118018
2012-05-17

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

#29
20120027959
2012-02-02

METHOD OF SHEATHING A SOLID-STATE LASER MEDIUM AND DEVICE FOR IMPLEMENTING IT

#30
20110274129
2011-11-10

Method for producing a cylindrical optical component of quartz glass and optically active component obtained by said method

#31
20110023551
2011-02-03

Increasing the cladding-to-core ratio (D/d) of low D/d core rods in optical fiber preforms

#32
20100247912
2010-09-30

Method for Manufacturing LMA Optical Preforms and Fibers

#33
20090272152
2009-11-05

METHOD FOR MANUFACTURING OPTICAL FIBER

#34
20080276651
2008-11-13

Increasing the cladding-to-core ratio (D/d) of low D/d ratio core rods in optical fiber performs

#35
20060245705
2006-11-02

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

#36
20060207293
2006-09-21

Method for production of an optical component from quartz glass

#37
20060174659
2006-08-10

Method for production of an optical component made from quartz glass

#38
20060140560
2006-06-29

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

#39
20060115913
2006-06-01

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

#40
20060088261
2006-04-27

Rare earth doped single polarization double clad optical fiber and a method for making such fiber

#41
20050223749
2005-10-13

Method of fabricating an optical fiber preform and drawing of an optical fiber

#42
20050204780
2005-09-22

Method for manufacturing optical fiber

#43
20050135740
2005-06-23

Optical fiber coupler with low loss and high coupling coefficient and method of fabrication thereof