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Yan LIU
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Surrey, CA
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Patents Grants
last 30 patents
Information
Patent Grant
Apparatus and methods for time-lapse astrophotography
Patent number
10,267,890
Issue date
Apr 23, 2019
Nantong Schmidt Opto-Electrical Technology Co. Ltd.
Dar-Tson Shen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Hand-held personal planetarium
Patent number
8,684,745
Issue date
Apr 1, 2014
Pacific Telescope Corp.
Chin Chuan Chen
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Method for automatically aligning telescope
Patent number
7,301,698
Issue date
Nov 27, 2007
Pacific Telescope Corp.
Chin Chuan Chen
G02 - OPTICS
Information
Patent Grant
Telescope system having auto-tracking altitude-azimuthal mount and...
Patent number
6,972,902
Issue date
Dec 6, 2005
Pacific Telescope Corp.
Chin Chuan Chen
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
APPARATUS AND METHODS FOR TIME-LAPSE ASTROPHOTOGRAPHY
Publication number
20150377999
Publication date
Dec 31, 2015
Dar-Tson SHEN
G01 - MEASURING TESTING
Information
Patent Application
HAND-HELD PERSONAL PLANETARIUM
Publication number
20140164971
Publication date
Jun 12, 2014
Pacific Telescope Corp.
Chin Chuan CHEN
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
HAND-HELD PERSONAL PLANETARIUM
Publication number
20100124735
Publication date
May 20, 2010
Chin Chuan CHEN
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Method for automatically aligning telescope
Publication number
20070115545
Publication date
May 24, 2007
Pacific Telescope Corp.
Chin-Chuan Chen
G02 - OPTICS