Kwok; Hoi Sing

Patent Applications and Registrations

Patent applications and USPTO patent grants for Kwok; Hoi Sing.The latest application filed is for "ferroelectric liquid crystals dammann grating for light detection and ranging devices".

Company Profile

9.95.98

Kwok; Hoi Sing - Hong Kong CN
Kwok; Hoi Sing - New Territories HK
Kwok; Hoi-Sing - Kowloon HK
Kwok; Hoi Sing - Tiu Keng Leng HK
Kwok; Hoi-Sing - Tainan County TW
Kwok; Hoi-Sing - Clear Water Bay HK
Kwok; Hoi Sing - Tortola VG
Kwok; Hoi Sing - Hkust HK
Kwok; Hoi-Sing - East Amherst NY

*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
Composite photoalignment layer Grant 11,294,241 - Tseng , et al. April 5, 2	2022-04-05
Method for production of quantum rods with precisely controllable wavelength of emission Grant 11,056,613 - Prodanov , et al. July 6, 2	2021-07-06
Low birefringence ferroelectric liquid crystal mixtures Grant 11,015,120 - Vashchenko , et al. May 25, 2	2021-05-25
Photoaligned quantum rod enhancement films Grant 10,948,774 - Srivastava , et al. March 16, 2	2021-03-16
Ferroelectric Liquid Crystals Dammann Grating For Light Detection And Ranging Devices App 20210063841 - Yuan; Zhengnan ; et al.	2021-03-04
Composite Photoalignment Layer App 20210011343 - TSENG; Man Chun ; et al.	2021-01-14
Composite photoalignment layer Grant 10,816,855 - Tseng , et al. October 27, 2	2020-10-27
Materials And Methods Of Making Photo-aligned Vertical Alignment Layer For Liquid Crystal Devices App 20200225542 - ZHAO; Chenxiang ; et al.	2020-07-16
Electrooptic device based on multiple domain scattering effect Grant 10,712,618 - Kwok , et al.	2020-07-14
Driving scheme for ferroelectric liquid crystal displays Grant 10,607,556 - Kwok , et al.	2020-03-31
Integration of silicon thin-film transistors and metal-oxide thin film transistors Grant 10,504,939 - Lu , et al. Dec	2019-12-10
Standing helix ferroelectric liquid crystal display cell Grant 10,451,948 - Pozhidaev , et al. Oc	2019-10-22
Method For Production Of Quantum Rods With Precisely Controllable Wavelength Of Emission App 20190312175 - Prodanov; Maksym F. ; et al.	2019-10-10
Organic-inorganic perovskite materials and optoelectronic devices fabricated by close space sublimation Grant 10,381,564 - Kwok , et al. A	2019-08-13
2D/3D switchable liquid crystal lens unit Grant 10,281,731 - Srivastava , et al.	2019-05-07
Photoaligned Quantum Rod Enhancement Films App 20190129252 - SRIVASTAVA; Abhishek Kumar ; et al.	2019-05-02
Materials And Methods Of Making Photo-aligned Vertical Alignment Layer For Liquid Crystal Devices App 20190129256 - ZHAO; CHENXIANG ; et al.	2019-05-02
Fabrication method of a polarizing grating Grant 10,142,602 - Kwok , et al. Nov	2018-11-27
Vertical Thin-film Transistor With Multiple-junction Channel App 20180315860 - Lu; Lei ; et al.	2018-11-01
Electrooptic Device Based On Multiple Domain Scattering Effect App 20180259813 - KWOK; HOI SING ; et al.	2018-09-13
Organic-inorganic Perovskite Materials And Optoelectronic Devices Fabricated By Close Space Sublimation App 20180248118 - KWOK; Hoi Sing ; et al.	2018-08-30
Integration Of Silicon Thin-film Transistors And Metal-oxide Thin Film Transistors App 20180240821 - Lu; Lei ; et al.	2018-08-23
Low Birefringence Ferroelectric Liquid Crystal Mixtures App 20180216004 - VASHCHENKO; VALERII VLADIMIROVICH ; et al.	2018-08-02
Metal oxide thin film transistor with channel, source and drain regions respectively capped with covers of different gas permeability Grant 10,032,924 - Lu , et al. July 24, 2	2018-07-24
Metal oxide thin film transistor with source and drain regions doped at room temperature Grant 9,960,281 - Lu , et al. May 1, 2	2018-05-01
Field sequential color ferroelectric liquid crystal display cell Grant 9,946,133 - Srivastava , et al. April 17, 2	2018-04-17
Switchable liquid crystal fresnel lens Grant 9,933,685 - Srivastava , et al. April 3, 2	2018-04-03
Composite Photoalignment Layer App 20180039141 - TSENG; Man Chun ; et al.	2018-02-08
Standing Helix Ferroelectric Liquid Crystal Display Cell App 20180017833 - POZHIDAEV; Evgenii P. ; et al.	2018-01-18
Driving Scheme For Ferroelectric Liquid Crystal Displays App 20170365228 - KWOK; Hoi Sing ; et al.	2017-12-21
Metal-induced crystallization of amorphous silicon in an oxidizing atmosphere Grant 9,818,607 - Kwok , et al. November 14, 2	2017-11-14
Stabilized photo-alignment layer for liquid crystal Grant 9,791,743 - Guo , et al. October 17, 2	2017-10-17
Fabrication Method Of A Polarization Grating App 20170264869 - Kwok; Hoi-Sing ; et al.	2017-09-14
Projection device and fabrication method of a polarization grating Grant 9,743,054 - Kwok , et al. August 22, 2	2017-08-22
Patterned polarization grating polarization converter Grant 9,739,448 - Du , et al. August 22, 2	2017-08-22
Copolymer, and liquid crystal alignment layer including cured product thereof Grant 9,684,206 - Schadt , et al. June 20, 2	2017-06-20
Fast switchable and high diffraction efficiency grating ferroelectric liquid crystal cell Grant 9,575,366 - Srivastava , et al. February 21, 2	2017-02-21
Metal Oxide Thin Film Transistor With Source And Drain Regions Doped At Room Temperature App 20160233338 - LU; LEI ; et al.	2016-08-11
Patterned polarization converter Grant 9,383,607 - Du , et al. July 5, 2	2016-07-05
Polymer Film With Geometrically Anisotropic Nanostructures App 20160187730 - Du; Tao ; et al.	2016-06-30
Field Sequential Color Ferroelectric Liquid Crystal Display Cell App 20160187691 - Srivastava; Abhishek Kumar ; et al.	2016-06-30
Field sequential color ferroelectric liquid crystal display cell Grant 9,366,934 - Srivastava , et al. June 14, 2	2016-06-14
Polarization converter by patterned polarization grating Grant 9,341,855 - Du , et al. May 17, 2	2016-05-17
Polymer for use in liquid crystal alignment layer Grant 9,340,634 - Nose , et al. May 17, 2	2016-05-17
Ultrathin film multi-crystalline photovoltaic device Grant 9,299,863 - Kwok , et al. March 29, 2	2016-03-29
Metal-induced Crystallization Of Amorphous Silicon In An Oxidizing Atmosphere App 20160020095 - Kwok; Hoi Sing ; et al.	2016-01-21
Thin film transistor with two-dimensional doping array Grant 9,214,568 - Kwok , et al. December 15, 2	2015-12-15
2D/3D Switchable Liquid Crystal Lens Unit App 20150331247 - Srivastava; Abhishek Kumar ; et al.	2015-11-19
Metallic anode treated by carbon tetrafluoride plasma for organic light emitting device Grant 9,166,197 - Kwok , et al. October 20, 2	2015-10-20
Metal Oxide Thin Film Transistor With Channel, Source And Drain Regions Respectively Capped With Covers Of Different Gas Permeability App 20150280002 - LU; LEI ; et al.	2015-10-01
Projection Device And Fabrication Method Of A Polarization Grating App 20150264327 - Kwok; Hoi-Sing ; et al.	2015-09-17
Patterned Polarization Grating Polarization Converter App 20150247617 - DU; Tao ; et al.	2015-09-03
Cholesteric liquid crystal structure Grant 9,046,729 - Valyukh , et al. June 2, 2	2015-06-02
Polymer Stabilized Electrically Suppressed Helix Ferroelectric Liquid Crystal Cell App 20150138496 - SRIVASTAVA; Abhishek Kumar ; et al.	2015-05-21
Patterned Polarization Converter App 20150079302 - Du; Tao ; et al.	2015-03-19
Switchable Liquid Crystal Fresnel Lens App 20150036084 - Srivastava; Abhishek Kumar ; et al.	2015-02-05
Stabilized Photo-alignment Layer For Liquid Crystal App 20150029453 - GUO; Qi ; et al.	2015-01-29
Metal-oxide based thin-film transistors with fluorinated active layer Grant 8,878,176 - Wong , et al. November 4, 2	2014-11-04
Method of producing spatially variable pretilt angles across a liquid crystal cell Grant 8,854,580 - Kwok , et al. October 7, 2	2014-10-07
Copolymer, And Liquid Crystal Alignment Layer Including Cured Product Thereof App 20140221574 - Schadt; Martin ; et al.	2014-08-07
Method for fabrication of active-matrix display panels Grant 8,754,416 - Kwok , et al. June 17, 2	2014-06-17
Liquid crystal display cell with fast response and continuous gray scale Grant 8,755,022 - Chigrinov , et al. June 17, 2	2014-06-17
Thin Film Transistor With Two-dimensional Doping Array App 20140159039 - KWOK; Hoi Sing ; et al.	2014-06-12
Field Sequential Color Ferroelectric Liquid Crystal Display Cell App 20140118650 - SRIVASTAVA; Abhishek Kumar ; et al.	2014-05-01
Pixel Structure Of Liquid Crystal Display Utilizing Asymmetrical Diffraction App 20130314631 - Tsvetkov; Valentin ; et al.	2013-11-28
Polarization Converter By Patterned Polarization Grating App 20130301126 - DU; Tao ; et al.	2013-11-14
Photo-induced dichroic polarizers and fabrication methods thereof Grant 8,576,485 - Kozenkov , et al. November 5, 2	2013-11-05
Method and apparatus for driving reflective bistable cholestric displays Grant 8,508,448 - Kwok , et al. August 13, 2	2013-08-13
Transient liquid crystal architecture Grant 8,482,506 - Kwok , et al. July 9, 2	2013-07-09
Fast Switchable and High Diffraction Efficiency Grating Ferroelectric Liquid Crystal Cell App 20130169909 - Srivastava; Abhishek Kumar ; et al.	2013-07-04
Low voltage liquid crystal lens with variable focal length Grant 8,471,999 - Valyukh , et al. June 25, 2	2013-06-25
Polymer For Use In Liquid Crystal Alignment Layer App 20130116396 - Nose; Sayaka ; et al.	2013-05-09
Polycrystalline silicon thin film transistors with bridged-grain structures Grant 8,426,865 - Kwok , et al. April 23, 2	2013-04-23
Luminescent gold(III) compounds for organic light-emitting devices and their preparation Grant 8,415,473 - Yam , et al. April 9, 2	2013-04-09
Metal-Oxide Based Thin-Film Transistors with Fluorinated Active Layer App 20130037798 - WONG; Man ; et al.	2013-02-14
Method to obtain a controlled pretilt and azimuthal angles in a liquid crystal cell Grant 8,358,391 - Kwok , et al. January 22, 2	2013-01-22
Metal-induced crystallization of amorphous silicon in thin film transistors Grant 8,338,237 - Kwok , et al. December 25, 2	2012-12-25
Polycrystalline silicon as an electrode for a light emitting diode and method of making the same Grant 8,339,026 - Kwok , et al. December 25, 2	2012-12-25
Photo-induced dichroic polarizers and fabrication methods thereof App 20120307363 - Kozenkov; Vladimir Markovich ; et al.	2012-12-06
Light Emitting Tetraphenylene Derivatives, Its Method For Preparation And Light Emitting Device Using The Same Derivatives App 20120299474 - Tang; Benzhong ; et al.	2012-11-29
Cholesteric liquid crystal structure App 20120242918 - Valyukh; Sergiy ; et al.	2012-09-27
Double sided emission organic light emitting diode display Grant 8,263,968 - Kwok , et al. September 11, 2	2012-09-11
Method of producing spatially variable pretilt angles across a liquid crystal cell App 20120224127 - Kwok; Hoi Sing ; et al.	2012-09-06
Optical system and projector Grant 8,256,903 - Tan , et al. September 4, 2	2012-09-04
Thin-film transistors with metal source and drain and methods of fabrication Grant 8,222,646 - Wong , et al. July 17, 2	2012-07-17
Patterned polarization converter App 20120092668 - Du; Tao ; et al.	2012-04-19
Transflective liquid crystal display Grant 8,120,735 - Kwok , et al. February 21, 2	2012-02-21
Metal-induced crystallization of amorphous silicon, polycrystalline silicon thin films produced thereby and thin film transistors produced therefrom Grant 8,088,676 - Wong , et al. January 3, 2	2012-01-03
Liquid crystal display cell with fast response and continuous gray scale App 20110285928 - Chigrinov; Vladimir Grigorievich ; et al.	2011-11-24
Transflective liquid crystal device and method of manufacturing the same Grant 8,013,957 - Meng , et al. September 6, 2	2011-09-06
Optical System And Projector App 20110211176 - TAN; LI ; et al.	2011-09-01
Polycrystalline silicon as an electrode for a light emitting diode and method of making the same App 20110159610 - Kwok; Hoi Sing ; et al.	2011-06-30
Liquid crystal alignment layer and methods of making thereof Grant 7,968,158 - Kwok , et al. June 28, 2	2011-06-28
Retardation films having single retardation value with variation Grant 7,969,543 - Kwok , et al. June 28, 2	2011-06-28
Polycrystalline silicon as an electrode for a light emitting diode and method of making the same Grant 7,923,911 - Kwok , et al. April 12, 2	2011-04-12
Low voltage liquid crystal lens with variable focal length App 20110043717 - Valyukh; Sergiy ; et al.	2011-02-24
Azo compound, composition for photo-alignment film using the same, and method for producing photo-alignment film Grant 7,892,711 - Kondo , et al. February 22, 2	2011-02-22
Metal-Induced Crystallization of Amorphous Silicon in Thin Film Transistors App 20110012124 - Kwok; Hoi Sing ; et al.	2011-01-20
Metal-induced crystallization of amorphous silicon in thin film transistors Grant 7,790,580 - Kwok , et al. September 7, 2	2010-09-07
Polycrystalline silicon thin film transistors with bridged-grain structures App 20100171546 - Kwok; Hoi Sing ; et al.	2010-07-08
Method, materials and apparatus for driving gray-scale bistable cholesteric displays Grant 7,696,971 - Yip , et al. April 13, 2	2010-04-13
Ultrathin Film Multi-crystalline Photovoltaic Device App 20100071760 - KWOK; Hoi Sing ; et al.	2010-03-25
Diarylaminofluorene-based organometallic phosphors and organic light-emitting devices made with such compounds Grant 7,652,136 - Kwok , et al. January 26, 2	2010-01-26
Method To Obtain A Controlled Pretilt And Azimuthal Angles In A Liquid Crystal Cell App 20090279032 - KWOK; Hoi Sing ; et al.	2009-11-12
Luminescent gold (III) compounds, their preparation, and light-emitting devices containing same Grant 7,572,912 - Yam , et al. August 11, 2	2009-08-11
Bistable liquid crystal device Grant 7,557,884 - Kwok , et al. July 7, 2	2009-07-07
Bistable twisted nematic liquid crystal display based on dual frequency operation Grant 7,551,252 - Kwok , et al. June 23, 2	2009-06-23
Transflective Liquid Crystal Display App 20090147187 - KWOK; Hoi Sing ; et al.	2009-06-11
Polycrystalline Silicon As An Electrode For A Light Emitting Diode & Method Of Making The Same App 20090134790 - Kwok; Hoi Sing ; et al.	2009-05-28
Transient Liquid Crystal Architecture App 20080218469 - Kwok; Hoi Sing ; et al.	2008-09-11
Method for fabrication of active-matrix display panels App 20080203394 - Kwok; Hoi-Sing ; et al.	2008-08-28
Transflective Liquid Crystal Device and Method of Manufacturing the Same App 20080204620 - Meng; Zhiguo ; et al.	2008-08-28
Anode for organic light emitting diode Grant 7,402,947 - Kwok , et al. July 22, 2	2008-07-22
Method of annealing polycrystalline silicon using solid-state laser and devices built thereon Grant 7,381,600 - Wong , et al. June 3, 2	2008-06-03
Photo-patterned light polarizing films Grant 7,381,507 - Kwok , et al. June 3, 2	2008-06-03
Diarylaminofluorene-based organometallic phosphors and organic light-emitting devices made with such compounds App 20080091021 - Kwok; Hoi-Sing ; et al.	2008-04-17
Azo Compound, Composition For Photo-Alignment Film Using The Same, And Method For Producing Photo-Alignment Film App 20070254220 - Kondo; Hitoshi ; et al.	2007-11-01
Metal-Induced Crystallization of Amorphous Silicon in Thin Film Transistors App 20070212855 - Kwok; Hoi Sing ; et al.	2007-09-13
Retardation films App 20070159582 - Kwok; Hoi-Sing ; et al.	2007-07-12
Color twisted nematic liquid crystal displays Grant 7,236,219 - Kwok , et al. June 26, 2	2007-06-26
Bistable twisted nematic liquid crystal display based on dual frequency operation App 20070139595 - Kwok; Hoi-Sing ; et al.	2007-06-21
Double sided emission organic light emitting diode display App 20070114522 - Kwok; Hoi-Sing ; et al.	2007-05-24
Metallic anode treated by carbon tetrafluoride plasma for organic light emitting device App 20070046183 - Kwok; Hoi Sing ; et al.	2007-03-01
Bistable liquid crystal device App 20070024782 - Kwok; Hoi-Sing ; et al.	2007-02-01
Thin-film transistors with metal source and drain and methods of fabrication App 20070007530 - Wong; Man ; et al.	2007-01-11
Metal-induced crystallization of amorphous silicon, polycrystalline silicon thin films produced thereby and thin film transistors produced therefrom App 20060263957 - Wong; Man ; et al.	2006-11-23
Intermediate Layers Treated By Cf4-plasma For Stacked Organic Light-emitting Devices App 20060250079 - KWOK; Hoi Sing ; et al.	2006-11-09
Projector with flat light sources Grant 7,133,211 - Kwok November 7, 2	2006-11-07
Photo-induced dichroic polarizers and fabrication methods thereof App 20060232860 - Kozenkov; Vladimir Markovich ; et al.	2006-10-19
Method of annealing polycrystalline silicon using solid-state laser and devices built thereon App 20060148217 - Wong; Man ; et al.	2006-07-06
Acetylene polymers and their use as liquid crystals Grant 7,070,712 - Tang , et al. July 4, 2	2006-07-04
Photo-induced dichroic polarizers and fabrication methods thereof Grant 7,070,913 - Kozenkov , et al. July 4, 2	2006-07-04
Polycrystalline silicon as an electrode for a light emitting diode & method of making the same App 20060103299 - Kwok; Hoi Sing ; et al.	2006-05-18
Luminescent gold (III) compounds, their preparation, and light-emitting devices containing same App 20060091378 - Yam; Vivian Wing-Wah ; et al.	2006-05-04
Method and apparatus for driving reflective bistable cholestric displays App 20060055650 - Kwok; Hoi-Sing ; et al.	2006-03-16
Anode for organic light emitting diode App 20060049754 - Kwok; Hoi Sing ; et al.	2006-03-09
Acetylene polymers and their use as liquid crystals App 20060022169 - Tang; Ben Zhong ; et al.	2006-02-02
Method of achieving high pretilt angles in a lilquid crystal cell App 20050260334 - Kwok, Hoi Sing ; et al.	2005-11-24
Liquid crystal alignment layer and methods of making thereof App 20050260426 - Kwok, Hoi-Sing ; et al.	2005-11-24
Projector with flat light sources App 20050225882 - Kwok, Hoi-Sing	2005-10-13
Polysilicon material and semiconductor devices formed therefrom Grant 6,953,716 - Wong , et al. October 11, 2	2005-10-11
Efficient flat light source App 20050218810 - Kwok, Hoi-Sing ; et al.	2005-10-06
Color vertically aligned liquid crystal displays Grant 6,919,947 - Kwok , et al. July 19, 2	2005-07-19
Color twisted nematic liquid crystal displays App 20050117091 - Kwok, Hoi-Sing ; et al.	2005-06-02
Color Vertically Aligned Liquid Crystal Displays App 20050117101 - Kwok, Hoi-Sing ; et al.	2005-06-02
Method and apparatus for driving reflective bistable cholesteric displays App 20050024307 - Kwok, Hoi-Sing ; et al.	2005-02-03
Reflective liquid crystal displays having multilayer rear substrates Grant 6,801,280 - Kwok , et al. October 5, 2	2004-10-05
Novel polysilicon material and semiconductor devices formed therefrom App 20040185681 - Wong, Man ; et al.	2004-09-23
Optical systems for liquid crystal display projectors Grant 6,793,344 - Kwok , et al. September 21, 2	2004-09-21
Optically optimized permanently bistable twisted nematic liquid crystal displays Grant 6,784,955 - Kwok , et al. August 31, 2	2004-08-31
Acetylene polymers and their use as liquid crystals App 20040140449 - Tang, Ben Zhong ; et al.	2004-07-22
Bistable twisted nematic liquid crystal displays with twist angle of .+-.11 degrees Grant 6,707,527 - Kwok , et al. March 16, 2	2004-03-16
Anode for organic light emitting diodes App 20040012025 - Kwok, Hoi-Sing ; et al.	2004-01-22
Photo-patterned light polarizing films App 20040008298 - Kwok, Hoi-Sing ; et al.	2004-01-15
Methods and apparatus for measurement of LC cell parameters Grant 6,633,358 - Kwok , et al. October 14, 2	2003-10-14
Photo-patterned light polarizing films Grant 6,630,289 - Kwok , et al. October 7, 2	2003-10-07
Acetylene polymers and their use as liquid crystals App 20030164474 - Tang, Ben Zhong ; et al.	2003-09-04
Structures for reflective liquid crystal displays App 20030133063 - Kwok, Hoi-Sing ; et al.	2003-07-17
Optical assembly for reflective light valves Grant 6,561,652 - Kwok , et al. May 13, 2	2003-05-13
Optically optimized permanently bistable twisted nematic liquid crystal displays App 20030076455 - Kwok, Hoi-Sing ; et al.	2003-04-24
Photo-induced alignment materials and method for LCD fabrication App 20030072896 - Kwok, Hoi-Sing ; et al.	2003-04-17
Rear projection system App 20030043346 - Kwok, Hoi-Sing ; et al.	2003-03-06
Method, materials and apparatus for driving gray-scale bistabel cholesteric displays App 20030030612 - Yip, Wing Chui ; et al.	2003-02-13
Optical systems for liquid crystal display projectors App 20020196413 - Kwok, Hoi-Sing ; et al.	2002-12-26
Photo-induced dichroic polarizers and fabrication methods thereof App 20020172893 - Kozenkov, Vladimir Markovich ; et al.	2002-11-21
Method and apparatus for printing photographs from digital images App 20020135795 - Kwok, Hoi-Sing ; et al.	2002-09-26
Acetylene polymers and their use as liquid crystals App 20020033474 - Tang, Ben Zhong ; et al.	2002-03-21
Multiple layer organic thin films App 20020024297 - Kwok, Hoi-Sing ; et al.	2002-02-28
Method And Apparatus For Driving Reflective Bistable Cholesteric Displays App 20010015723 - KWOK, HOI-SING ; et al.	2001-08-23
Single polarized LCD consisting of particular twist angle and thickness-birefringence product Grant 6,091,477 - Kwok , et al. July 18, 2	2000-07-18
Method and apparatus for measuring liquid crystal cell properties Grant 6,081,337 - Kwok , et al. June 27, 2	2000-06-27
Liquid crystal display having a single polarizer and no retardation film compensation Grant 5,926,245 - Kwok , et al. July 20, 1	1999-07-20
Non-enhanced laser evaporation of oxide superconductors Grant 4,874,741 - Shaw , et al. October 17, 1	1989-10-17

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