Wu; Ching-Chin

Patent Applications and Registrations

Patent applications and USPTO patent grants for Wu; Ching-Chin.The latest application filed is for "polarizing preserving front projection screen with protrusions".

Company Profile

1.7.11

Wu; Ching-Chin - Taipei TW
Wu; Ching-Chin - Hsinchu TW
Wu; Ching-Chin - Hsinchu Hsien TW
Wu; Ching-Chin - Taichung County TW
Wu; Ching-Chin - Tainan TW
Wu; Ching-Chin - Taichung Hsien TW
Wu; Ching-Chin - Taichung TW

*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
Polarizing preserving front projection screen with protrusions Grant 11,226,548 - Wu January 18, 2	2022-01-18
Polarizing preserving front projection screen with protrusions App 20200387062 - Wu; Ching-Chin	2020-12-10
Virtual input element image projection apparatus Grant 7,543,940 - Wu , et al. June 9, 2	2009-06-09
Light Guide Plate and Back-Light Module Having Light Guide Plate App 20080084709 - Li; Yu-Tang ; et al.	2008-04-10
Backlight modules using diffraction optical elements Grant 7,251,412 - Lu , et al. July 31, 2	2007-07-31
Brightness enhancement film having curved prism units and light scattering particles App 20070121227 - Wang; Jing-Wei ; et al.	2007-05-31
Zoom lens Grant 7,224,541 - Wu , et al. May 29, 2	2007-05-29
Brightness enhancement film having curved prism units and microstructure layer App 20070115569 - Tang; Shih-Chieh ; et al.	2007-05-24
LED backlight module App 20070001185 - Lu; Ying Tsung ; et al.	2007-01-04
Anti-counterfeit method and system by using a nano metal grating Grant 7,113,690 - Lai , et al. September 26, 2	2006-09-26
Backlight modules using diffraction optical elements App 20060147152 - Lu; Ying-Tsung ; et al.	2006-07-06
Zoom lens App 20060119957 - Wu; Ching-Chin ; et al.	2006-06-08
Anti-counterfeit method and system by using a nano metal grating App 20050141846 - Lai, Pong ; et al.	2005-06-30
Virtual input element image projection apparatus App 20050128185 - Wu, Ching-Chin ; et al.	2005-06-16
Grating interference device with adjustable resolution Grant 6,823,113 - Lu , et al. November 23, 2	2004-11-23
Planar optical waveguide dense wavelength division multiplexer Grant 6,701,045 - Lu , et al. March 2, 2	2004-03-02
Grating interference device with adjustable resolution App 20040013365 - Lu, Ying-Tsung ; et al.	2004-01-22
Planar optical waveguide dense wavelength division multiplexer App 20020186925 - Lu, Ying-Tsung ; et al.	2002-12-12

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