NATIONAL INSTITUTE OF METROLOGY P. R. CHINA

Patent Applications and Registrations

Patent applications and USPTO patent grants for NATIONAL INSTITUTE OF METROLOGY P. R. CHINA.The latest application filed is for "absolute measurement method and apparatus thereof for non-linear error".

Company Profile

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NATIONAL INSTITUTE OF METROLOGY P. R. CHINA - Beijing CN

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Patent Activity

Patent	Date
Infrasound generating device based on a displacement-feedback type vibration exciter Grant 9,539,616 - He , et al. January 10, 2	2017-01-10
Absolute measurement method and apparatus thereof for non-linear error Grant 9,347,823 - Sun May 24, 2	2016-05-24
Vibration exciter system with a feedback control unit based on an optical linear encoder Grant 9,097,603 - He , et al. August 4, 2	2015-08-04
Electromagnetic vibration exciter system with adjustable electro-viscoelastic suspension device Grant 9,099,943 - He , et al. August 4, 2	2015-08-04
Grating external-cavity semiconductor laser and quasi-synchronous tuning method thereof Grant 9,036,668 - Zang , et al. May 19, 2	2015-05-19
Grating external-cavity semiconductor laser and quasi-synchronous method thereof Grant 8,953,649 - Zang , et al. February 10, 2	2015-02-10
Absolute measurement method and apparatus thereof for non-linear error App 20150009501 - Sun; Ruoduan	2015-01-08
Three-phase electric energy measurement apparatus Grant 8,823,359 - Zhang , et al. September 2, 2	2014-09-02
Infrasound Generating Device Based On A Displacement-feedback Type Vibration Exciter App 20140140179 - He; Wen ; et al.	2014-05-22
Grating External-cavity Semiconductor Laser And Quasi-synchronous Method Thereof App 20140126589 - ZANG; Erjun ; et al.	2014-05-08
Electromagnetic Vibration Exciter System With Adjustable Electro-viscoelastic Suspension Device App 20130234628 - He; Wen ; et al.	2013-09-12
Vibration Exciter System With A Feedback Control Unit Based On An Optical Linear Encoder App 20130162179 - He; Wen ; et al.	2013-06-27
Monolithic folded F-P cavity and semiconductor laser using the same Grant 8,107,509 - Zang , et al. January 31, 2	2012-01-31

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