Patents by Inventor Li-Chih Hu

Li-Chih Hu 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).

  • Publication number: 20230399744
    Abstract: A device, including a hydrophilic layer on a portion of an inner surface of a transparent polymer forming a body; wherein the hydrophilic layer includes a sulfonated inner surface of the transparent polymer, a silica, a silicon oxycarbide, an O2 plasma treatment of the transparent polymer, or a combination thereof. The device can be a nebulizer or a spray chamber, for example used in an inductively coupled plasma device. A method of making the device is also disclosed.
    Type: Application
    Filed: March 27, 2023
    Publication date: December 14, 2023
    Applicant: AGILENT TECHNOLOGIES, INC.
    Inventors: Elizabeth CARR, Frank STRELLER, Li-Chih HU, David Michael LYNCH, Richard CLOSSER
  • Patent number: 11596921
    Abstract: A cationic composite filter aid may include a silicate substrate, a silica precipitated on the silicate substrate, and a cationic surface modification of the precipitated silica. A method for making a cationic composite filter aid may include providing a silicate substrate, precipitating a silica onto the silicate substrate to form a composite filter aid, and cationically modifying the precipitated silica to form a cationic composite filter aid. A method for filtering a liquid may include providing a liquid for filtering and filtering the liquid through a cationically modified composite filter aid. The cationically modified composite filter aid may include a silicate substrate, a precipitated silica, and a cationic surface modification of the precipitated silica.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: March 7, 2023
    Assignee: Imerys USA, Inc.
    Inventors: Robert Fleming, Li-Chih Hu, David Gittins
  • Publication number: 20230037514
    Abstract: A method for filtering a non aqueous liquid such as a biodiesel to reduce the levels of sterol glucosides and/or saturated monoglycerides.
    Type: Application
    Filed: December 18, 2020
    Publication date: February 9, 2023
    Inventors: Li-Chih HU, David GITTINS, Neal WILLIAMS, Chris ABRAMS
  • Publication number: 20200384396
    Abstract: The present disclosure includes compositions and methods for filtering oil, e.g., for removing free fatty acids (FFAs) from an oil used for cooking. In one example, the composition may comprise a filter aid that includes an alkali silicate, and a composite material comprising a silicate mineral at least partially coated with an inorganic silica or silicate. In another example, filter aid includes an alkali silicate, and a silicate mineral, wherein at least a portion of the alkali silicate is present as a coating on the silicate mineral, and wherein the ratio of said alkali silicate to silicate mineral in the filter aid ranges from about 1:4 to 4:1 by weight. In yet another example, the filter aid includes an alkali silicate, a silicate mineral, and an adsorbent. The method of filtering an oil may include combining the oil with the filter aid, optionally heating the mixture, and separating at least a portion of the filter aid from the oil to thereby remove at least a portion of the FFAs from the oil.
    Type: Application
    Filed: December 14, 2018
    Publication date: December 10, 2020
    Inventors: Andrew OH, Li-Chih HU
  • Publication number: 20180326395
    Abstract: A cationic composite filter aid may include a silicate substrate, a silica precipitated on the silicate substrate, and a cationic surface modification of the precipitated silica. A method for making a cationic composite filter aid may include providing a silicate substrate, precipitating a silica onto the silicate substrate to form a composite filter aid, and cationically modifying the precipitated silica to form a cationic composite filter aid. A method for filtering a liquid may include providing a liquid for filtering and filtering the liquid through a cationically modified composite filter aid. The cationically modified composite filter aid may include a silicate substrate, a precipitated silica, and a cationic surface modification of the precipitated silica.
    Type: Application
    Filed: November 18, 2016
    Publication date: November 15, 2018
    Inventors: Robert FLEMING, Li-Chih HU, David GITTINS
  • Publication number: 20180185816
    Abstract: A composite filter aid may include a silicate substrate and a precipitated magnesium silicate having a mole ratio of SiO2:MgO greater than about 1.0:1. A method for making a composite filter aid may include providing a silicate substrate, precipitating a magnesium silicate onto the silicate substrate to form a composite filter aid, wherein the mole ratio of SiO2:MgO of the magnesium silicate is greater than about 1.0:1. A method for filtering a non-aqueous liquid may include providing a non-aqueous liquid for filtering and filtering the non-aqueous liquid through a composite filter aid.
    Type: Application
    Filed: August 25, 2016
    Publication date: July 5, 2018
    Inventors: Robert FLEMING, Li-Chih HU, Nathan DIAS, Udaya BHIMARAJA, Giorgio LAMOTTA
  • Patent number: 8975358
    Abstract: The present invention relates to compositions and methods for synthesis of organic-silica hybrid microparticles and nanoparticles. In particular, the present invention provides compositions and methods for particle size control during synthesis of organic-silica hybrid microparticles and nanoparticles.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: March 10, 2015
    Assignee: The Regents of the University of California
    Inventors: Kenneth J. Shea, Li-Chih Hu
  • Publication number: 20130130034
    Abstract: The present invention relates to compositions and methods for synthesis of organic-silica hybrid microparticles and nanoparticles. In particular, the present invention provides compositions and methods for particle size control during synthesis of organic-silica hybrid microparticles and nanoparticles.
    Type: Application
    Filed: July 18, 2011
    Publication date: May 23, 2013
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Kenneth J. Shea, Li-Chih Hu