Patents by Inventor Tak Wong

Tak Wong has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9694350
    Abstract: This invention provides a catalyst comprising a new form of ZnFe2O4 spinel nanoparticles, and a method for preparing same. The catalyst is useful for catalyzing the esterification of fatty acids or transesterification of triglycerides, wherein the reaction rate and conversion can be enhanced by free fatty acids.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: July 4, 2017
    Assignee: The Hong Kong Polytechnic University
    Inventors: Ka Fu Yung, Wing Tak Wong, Tsz Lung Kwong
  • Patent number: 9615159
    Abstract: A method and device for supplying power for an ANC (Active Noise Cancelation) earphone by utilization of a power source of an electronic equipment. According to the power supplying method, power is supplied to a noise canceling circuit of the ANC earphone and its related circuits by the power source of the electronic equipment through a microphone contact, a left channel audio contact, or a right channel audio contact of an earphone jack of the electrical equipment. The power supplying device includes the ANC earphone and the electronic equipment. This invention enables the ANC earphone to directly obtain power from the power source of the electronic equipment, so that the ANC earphone is simple in structure, convenient to carry, suitable for mass production, low in production cost, and high in compatibility.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: April 4, 2017
    Assignee: Anpac Semiconductor Limited
    Inventors: Fun Tak Wong, Kai Hon Ho, Kenneth Kin Keung Lee
  • Publication number: 20170093463
    Abstract: An NFC-based method for controlling an electronic device to perform a pre-determined action in a batteryless manner is provided, comprising the steps of providing at least one near field communication (NFC) tag which comprises a integrated circuit configured to activate the electronic device to perform the respective pre-determined action after the circuit is energized and an antenna electrically coupled to the integrated circuit and configured to harvest NFC energy from the electronic device to energize the integrated circuit; forming an operation loop comprising one of the at least one NFC tag; switching the operation loop between an operative state wherein the antenna is capable of harvesting the NFC energy to energize the integrated circuit, and a non-operative state wherein the antenna fails to harvest the NFC energy so as to disable the integrated circuit. A corresponding apparatus and applications of the apparatus are also described.
    Type: Application
    Filed: March 17, 2014
    Publication date: March 30, 2017
    Inventor: YEE TAK WONG
  • Publication number: 20160279616
    Abstract: This invention provides a catalyst comprising a new form of ZnFe2O4 spinel nanoparticles, and a method for preparing same. The catalyst is useful for catalyzing the esterification of fatty acids or transesterification of triglycerides, wherein the reaction rate and conversion can be enhanced by free fatty acids.
    Type: Application
    Filed: March 23, 2016
    Publication date: September 29, 2016
    Inventors: Ka Fu YUNG, Wing Tak WONG, Tsz Lung KWONG
  • Publication number: 20160129148
    Abstract: The present invention relates to a method for coating polymethylmethacrylate (PMMA)-based co-polymer beads with nano-calcium phosphate. The method includes synthesizing the PMMA-based co-polymer beads containing hydroxyl pendant group, reacting the calcium salt and phosphate solution with the hydroxyl pendant group on the PMMA-based co-polymer beads, and thickening of the nano-calcium phosphate coating on the PMMA-based co-polymer beads.
    Type: Application
    Filed: November 5, 2015
    Publication date: May 12, 2016
    Inventors: Chi Tak WONG, Sau Kuen Connie Kwok
  • Patent number: 9162970
    Abstract: Methods and systems for purifying a crude aniline. The method can include contacting a crude aniline that can include aniline, water, and cyclohexanone with a cation exchange resin to produce a cyclohexanone-lean product that contains less cyclohexanone than the crude aniline. The cation exchange resin can be a solid, a semi-solid, or a combination thereof.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: October 20, 2015
    Assignee: KELLOGG BROWN & ROOT LLC
    Inventors: Theodor Wilks, Eric Wing-Tak Wong, Matthew R. Ulrich
  • Publication number: 20150251988
    Abstract: Methods and systems for purifying a crude aniline. The method can include contacting a crude aniline that can include aniline, water, and cyclohexanone with a cation exchange resin to produce a cyclohexanone-lean product that contains less cyclohexanone than the crude aniline. The cation exchange resin can be a solid, a semi-solid, or a combination thereof.
    Type: Application
    Filed: February 26, 2015
    Publication date: September 10, 2015
    Applicant: KELLOGG BROWN & ROOT LLC
    Inventors: Theodor Wilks, Eric Wing-Tak Wong, Matthew R. Ulrich
  • Publication number: 20150237435
    Abstract: A method and device for supplying power for an ANC (Active Noise Cancelation) earphone by utilization of a power source of an electronic equipment. According to the power supplying method, power is supplied to a noise canceling circuit of the ANC earphone and its related circuits by the power source of the electronic equipment through a microphone contact, a left channel audio contact, or a right channel audio contact of an earphone jack of the electrical equipment. The power supplying device includes the ANC earphone and the electronic equipment. This invention enables the ANC earphone to directly obtain power from the power source of the electronic equipment, so that the ANC earphone is simple in structure, convenient to carry, suitable for mass production, low in production cost, and high in compatibility.
    Type: Application
    Filed: June 17, 2013
    Publication date: August 20, 2015
    Inventors: Fun Tak Wong, Kai Hon Ho, Kenneth Kin Keung Lee
  • Publication number: 20150133702
    Abstract: Methods and systems for removing volatile organic compounds from spent air are provided. The method can include oxidizing cumene in the presence of an oxidant to produce an oxidized product containing methanol and a spent air, separating the spent air from the oxidized product, contacting the spent air with an absorbent, an adsorbent, or a mixture thereof to remove at least a portion of any impurities in the spent air to produce a first purified air, and contacting the first purified air with a biological material to produce a treated air.
    Type: Application
    Filed: January 26, 2015
    Publication date: May 14, 2015
    Inventor: ERIC WING-TAK WONG
  • Publication number: 20140242680
    Abstract: Methods and systems for removing volatile organic compounds from spent air are provided. The method can include oxidizing cumene in the presence of an oxidant to produce an oxidized product containing methanol and a spent air, separating the spent air from the oxidized product, contacting the spent air with an absorbent, an adsorbent, or a mixture thereof to remove at least a portion of any impurities in the spent air to produce a first purified air, and contacting the first purified air with a biological material to produce a treated air.
    Type: Application
    Filed: February 26, 2013
    Publication date: August 28, 2014
    Applicant: KELLOGG BROWN & ROOT LLC
    Inventor: Eric Wing-Tak WONG
  • Patent number: 8697917
    Abstract: Methods and systems for producing low methanol concentration acetone are provided. The method can include oxidizing and cleaving cumene to produce a crude acetone product. The crude acetone product can be neutralized in a neutralization unit to produce a neutralized crude acetone product. The neutralized crude acetone product can be fractionated in an acetone fractionation column to produce an acetone product and an acetone bottoms product. Methanol can be removed from the acetone bottoms product to produce a methanol-depleted product. The methanol-depleted product can be introduced to the neutralization unit, a dephenolation unit, or both.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: April 15, 2014
    Assignee: Kellogg Brown & Root LLC
    Inventors: Theodor R. Wilks, Manish Bhargava, Eric Wing-Tak Wong
  • Patent number: 8538999
    Abstract: A tree data structure for storing strings of searchable data divided into substrings has at least one first type node that has a substring associated with it and at least one second type node that does not having a substring associated with it. A second type node is directly linked to a first type node by a fail transition. A first type node is directly linked to a second type node by a match transition. An IP address lookup system has memory for storing a tree data structure and a controller for storing and loading an incoming IP address. The system has a finite state machine having three stages including a first stage for loading the IP address and performing a length calculation, a second stage for searching the data structure to find a match, and a third stage for determine the next-hop address index.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: September 17, 2013
    Assignee: The Hong Kong Polytechnic University
    Inventors: Robert Wing Pong Luk, Wai Tak Wong
  • Publication number: 20120239702
    Abstract: A tree data structure for storing strings of searchable data divided into substrings has at least one first type node that has a substring associated with it and at least one second type node that does not having a substring associated with it. A second type node is directly linked to a first type node by a fail transition. A first type node is directly linked to a second type node by a match transition. An IP address lookup system has memory for storing a tree data structure and a controller for storing and loading an incoming IP address. The system has a finite state machine having three stages including a first stage for loading the IP address and performing a length calculation, a second stage for searching the data structure to find a match, and a third stage for determine the next-hop address index.
    Type: Application
    Filed: March 28, 2012
    Publication date: September 20, 2012
    Applicant: THE HONG KONG POLYTECHNIC POLYTECHNIC UNIVERSITY
    Inventors: Robert Wing Pong Luk, Wai Tak Wong
  • Publication number: 20120207762
    Abstract: Stable pharmaceutical formulations and methods of making same are provided. In a general embodiment, the present disclosure provides a method of making a stable pharmaceutical formulation comprising adding one or more vitrifying additives to an aqueous pharmaceutical solution to raise the glass transition temperature of the aqueous pharmaceutical solution. The aqueous pharmaceutical solution can be cooled to a temperature of about ?50° C. to about ?10° C. The vitrifying additive enhances the formation of a glass or amorphous solid of the aqueous pharmaceutical solution at cryogenic temperatures (?50 to ?10° C.), and the pharmaceutical formulation can be thawed to liquid form and administered to a mammalian subject.
    Type: Application
    Filed: April 23, 2012
    Publication date: August 16, 2012
    Applicants: Baxter Healthcare S.A., Baxter International Inc.
    Inventors: James E. Kipp, Joseph Chung Tak Wong, Lakshmy Nair, Reagan Miller, Barrett E. Rabinow
  • Patent number: 8226832
    Abstract: A method that can be used in a portable system and apparatus to effectively and efficiently treat aqueous fluids by quickly and reliably adjusting and controlling the free residual level of disinfectants, contaminants or additives through the addition of one or more treating agents such as oxidizing chemicals and/or other special-purpose additives, and that can continuously store, log, retrieve and report the related fluid composition data and other operating parameters on a real-time basis at either the use site or a remote location. A preferred use for the subject method is managing the chemistry of disinfectant, contaminant and/or additive levels in aqueous fluids used in hydraulic fracturing operations, and controlling the free residual levels of the disinfectant or contaminants within the fluids, including fluids maintained in frac tanks during temporary cessation of a hydraulic fracturing operation.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: July 24, 2012
    Assignee: NCH Ecoservices, LLC
    Inventors: Jerome F. Angelilli, Patrick D. Guccione, Billy E. Pierce, Daniel Wai-tak Wong, John H. Williams
  • Patent number: 8211296
    Abstract: A portable water treatment system and apparatus is disclosed that can effectively and efficiently treat aqueous fluids by quickly and reliably adjusting and controlling the free residual level of disinfectants, contaminants or additives through the addition of one or more treating agents such as oxidizing chemicals and/or other special-purpose additives, and that can continuously store, log, retrieve and report the related fluid composition data and other operating parameters on a real-time basis at either the use site or a remote location. A preferred use for the subject system and apparatus is managing the chemistry of disinfectant, contaminant and/or additive levels in aqueous fluids used in hydraulic fracturing operations, and controlling the free residual levels of the disinfectant or contaminants within the fluids, including fluids maintained in frac tanks during temporary cessation of a hydraulic fracturing operation.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: July 3, 2012
    Assignee: NCH Ecoservices, LLC
    Inventors: Jerome F. Angelilli, Patrick D. Guccione, Jason M. Melton, Daniel Wai-tak Wong, John H. Williams
  • Patent number: 8183233
    Abstract: Stable pharmaceutical formulations and methods of making same are provided. In a general embodiment, the present disclosure provides a method of making a stable pharmaceutical formulation comprising adding one or more vitrifying additives to an aqueous pharmaceutical solution to raise the glass transition temperature of the aqueous pharmaceutical solution. The aqueous pharmaceutical solution can be cooled to a temperature of about ?50° C. to about ?10° C. The vitrifying additive enhances the formation of a glass or amorphous solid of the aqueous pharmaceutical solution at cryogenic temperatures (?50 to ?10° C.), and the pharmaceutical formulation can be thawed to liquid form and administered to a mammalian subject.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: May 22, 2012
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: James E. Kipp, Joseph Chung Tak Wong, Lakshmy Nair, Reagan Miller, Barrett E. Rabinow
  • Patent number: 8150891
    Abstract: A tree data structure for storing strings of searchable data divided into substrings has at least one first type node that has a substring associated with it and at least one second type node that does not having a substring associated with it. A second type node is directly linked to a first type node by a fail transition. A first type node is directly linked to a second type node by a match transition. An IP address lookup system has memory for storing a tree data structure and a controller for storing and loading an incoming IP address. The system has a finite state machine having three stages including a first stage for loading the IP address and performing a length calculation, a second stage for searching the data structure to find a match, and a third stage for determine the next-hop address index.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: April 3, 2012
    Assignee: Hong Kong Polytechnic University
    Inventors: Robert Wing Pong Luk, Wai Tak Wong
  • Publication number: 20110137465
    Abstract: A method that can be used in a portable system and apparatus to effectively and efficiently treat aqueous fluids by quickly and reliably adjusting and controlling the free residual level of disinfectants, contaminants or additives through the addition of one or more treating agents such as oxidizing chemicals and/or other special-purpose additives, and that can continuously store, log, retrieve and report the related fluid composition data and other operating parameters on a real-time basis at either the use site or a remote location. A preferred use for the subject method is managing the chemistry of disinfectant, contaminant and/or additive levels in aqueous fluids used in hydraulic fracturing operations, and controlling the free residual levels of the disinfectant or contaminants within the fluids, including fluids maintained in frac tanks during temporary cessation of a hydraulic fracturing operation.
    Type: Application
    Filed: April 9, 2010
    Publication date: June 9, 2011
    Inventors: Jerome F. Angelilli, Patrick D. Guccione, Billy E. Pierce, Daniel Wai-tak Wong, John H. Williams
  • Publication number: 20110132815
    Abstract: A portable water treatment system and apparatus is disclosed that can effectively and efficiently treat aqueous fluids by quickly and reliably adjusting and controlling the free residual level of disinfectants, contaminants or additives through the addition of one or more treating agents such as oxidizing chemicals and/or other special-purpose additives, and that can continuously store, log, retrieve and report the related fluid composition data and other operating parameters on a real-time basis at either the use site or a remote location. A preferred use for the subject system and apparatus is managing the chemistry of disinfectant, contaminant and/or additive levels in aqueous fluids used in hydraulic fracturing operations, and controlling the free residual levels of the disinfectant or contaminants within the fluids, including fluids maintained in frac tanks during temporary cessation of a hydraulic fracturing operation.
    Type: Application
    Filed: April 9, 2010
    Publication date: June 9, 2011
    Inventors: Jerome F. Angelilli, Patrick D. Guccione, Jason M. Melton, Daniel Wai-tak Wong, John H. Williams