Li; Minchun

Patent Applications and Registrations

Patent applications and USPTO patent grants for Li; Minchun.The latest application filed is for "variable optical attenuator".

Company Profile

1.5.5

Li; Minchun - Wuhan CN
Li; Minchun - Shenzhen CN
Li; Minchun - Plano TX

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Liquid crystal grating-based optical switch Grant 10,284,931 - Mao , et al.	2019-05-07
Variable optical attenuator comprising a switchable polarization grating Grant 9,927,678 - Mao , et al. March 27, 2	2018-03-27
Variable Optical Attenuator App 20170075189 - Mao; Chongchang ; et al.	2017-03-16
Liquid Crystal Grating-Based Optical Switch App 20170055051 - Mao; Chongchang ; et al.	2017-02-23
Beam Processing Device, Beam Attenuation And Switching Device, And Optical Wavelength Selective Switch System App 20160154247 - LIU; Heliang ; et al.	2016-06-02
Method and apparatus for wavelength selective switch Grant 9,201,286 - Mao , et al. December 1, 2	2015-12-01
Method and Apparatus for Wavelength Selective Switch App 20150185583 - Mao; Chongchang ; et al.	2015-07-02
Method and apparatus for wavelength selective switch Grant 9,008,470 - Mao , et al. April 14, 2	2015-04-14
Method and Apparatus for Wavelength Selective Switch App 20130194537 - Mao; Chongchang ; et al.	2013-08-01
Variable optical attenuator using crystal wedges Grant 7,034,979 - Feng , et al. April 25, 2	2006-04-25

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