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ZENASTRA PHOTONICS INC
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OTTAWA, CA
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Patents Grants
last 30 patents
Patents Applications
last 30 patents
Information
Patent Application
Novel optical waveguide switch using cascaded mach-zehnder interfer...
Publication number
20020159684
Publication date
Oct 31, 2002
Zenastra Photonics Inc.
De-Gui Sun
G02 - OPTICS
Information
Patent Application
Organic-inorganic hybrids surface adhesion promoter
Publication number
20020123592
Publication date
Sep 5, 2002
Zenastra Photonics Inc.
Zhiyi Zhang
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Method for preparing optical fibers for connection to other fibers...
Publication number
20020076189
Publication date
Jun 20, 2002
Zenastra Photonics Inc.
David Andrew McMullin
G02 - OPTICS
Information
Patent Application
Application of deuterium oxide in producing silicon containing and...
Publication number
20010047665
Publication date
Dec 6, 2001
Zenastra Photonics Inc.
Zhiyi Zhang
C03 - GLASS MINERAL OR SLAG WOOL
Trademark
last 30 trademarks
Information
Trademark
76173894 - LIGHT PULSE FIGURE (COLOUR)
Serial number
76173894
Filing date
Dec 1, 2000
ZENASTRA PHOTONICS INC.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
76173882 - LIGHT PULSE FIGURE (BLACK AND WHITE)
Serial number
76173882
Filing date
Dec 1, 2000
ZENASTRA PHOTONICS INC.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
76173883 - ZENASTRA
Serial number
76173883
Filing date
Dec 1, 2000
ZENASTRA PHOTONICS INC.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
76173884 - ZENASTRA PHOTONICS
Serial number
76173884
Filing date
Dec 1, 2000
ZENASTRA PHOTONICS INC.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
76173885 - ARE YOU THERE YET?
Serial number
76173885
Filing date
Dec 1, 2000
ZENASTRA PHOTONICS INC.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
76173886 - ZENASTRA
Serial number
76173886
Filing date
Dec 1, 2000
ZENASTRA PHOTONICS INC.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments