ClassID:

87279

C03B37/02709 - CPC Classification

Classification description:

Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags; Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms; Fibres composed of different sorts of glass, e.g. glass optical fibres Polarisation maintaining fibres, e.g. PM, PANDA, bi-refringent optical fibres

Recent Application in this class:
#1
20240199468
2024-06-20

INFRARED-TRANSMITTING, POLARIZATION-MAINTAINING OPTICAL FIBER AND METHOD FOR MAKING

#2
20240085618
2024-03-14

POLARIZATION MAINTAINING OPTICAL FIBER AND POLARIZATION MAINTAINING OPTICAL FIBER MANUFACTURING METHOD

#3
20230194805
2023-06-22

POLARIZATION MAINTAINING FIBER WITH ALIGNMENT FEATURES

#4
20210405287
2021-12-30

Polarization-maintaining photonic crystal fiber

#5
20210323856
2021-10-21

Element for a preform, a fiber production method and an optical fiber drawn from the preform

#6
20200317557
2020-10-08

Infrared-transmitting, polarization-maintaining optical fiber and method for making

#7
20180339931
2018-11-29

Element for a preform, a fiber production method and an optical fiber drawn from the preform

#8
20170248757
2017-08-31

High-birefringence hollow-core fibers and techniques for making same

#9
20170075147
2017-03-16

Polarization-maintaining optical fibre and preform and method for producing the same

#10
20150198764
2015-07-16

High-birefringence hollow-core fibers and techniques for making same

#11
20130008210
2013-01-10

METHOD FOR MANUFACTURING A BIREFRINGENT MICROSTRUCTURED OPTICAL FIBER

#12
20110268399
2011-11-03

Optical fiber with differential birefringence mechanism

#13
20110097048
2011-04-28

Techniques for manufacturing birefringent optical fiber

#14
20090310925
2009-12-17

Pure silica core, high birefringence, single polarization optical waveguide

#15
20080151254
2008-06-26

Pure silica core, high birefringence, single polarization optical waveguide