Patents by Inventor Wenjin Zhang

Wenjin Zhang 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: 20100105966
    Abstract: A process includes receiving a process stream including at least about 80.0% by weight propylene glycol, and contacting the process stream with an absorbent material to produce a product stream. The absorbent material is configured to preferentially absorb ethylene glycol relative to propylene glycol.
    Type: Application
    Filed: March 14, 2008
    Publication date: April 29, 2010
    Applicant: Huntsman Petrochemical LLC
    Inventors: Haibo Zhao, Mattew W. Forkner, Wenjin Zhang
  • Patent number: 7632567
    Abstract: Use of micronized zinc compounds in wood preservation treatments containing micronized copper compounds significantly increases the efficacy of the treatment with respect to that of the copper compounds alone. Micronized copper compounds used at a retention in the range of from 0.005 to 1 pounds per cubic foot (pcf) expressed as CuO equivalent, and zinc compounds are used at a retention in the range of from 0.005 to 1 pcf expressed as ZnO equivalent, the increase in wood preservation efficacy over similar retentions of copper compounds alone can be seen in as little as 24 months.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: December 15, 2009
    Assignee: Osmose, Inc.
    Inventors: Jun Zhang, Wenjin Zhang
  • Publication number: 20070131136
    Abstract: Provided is a method for coloring and, optionally, preserving wood and wood products. The method comprises application of pigment dispersions, and optionally biocide dispersions, to wood such that the wood is impregnated. A composition for coloring and, optionally, preserving wood is disclosed, comprising dispersions of micronized pigment and, optionally, micronized biocide.
    Type: Application
    Filed: December 8, 2006
    Publication date: June 14, 2007
    Applicant: Osmose, Inc.
    Inventors: Wenjin Zhang, Jun Zhang
  • Publication number: 20060257578
    Abstract: The present invention provides wood preservative and flame retardant compositions having low leachability comprising micronized boron compounds and, optionally, one or more organic biocides which may be micronized. Also provided is a method for applying the composition to wood and wood products comprising impregnating the wood with the composition.
    Type: Application
    Filed: February 15, 2006
    Publication date: November 16, 2006
    Inventors: Jun Zhang, Wenjin Zhang, Robert Leach
  • Publication number: 20060147632
    Abstract: Provided is a composition which can color and preserve wood. The composition comprises both micronized pigments and inorganic and/or organic biocides, which may be present as a dispersion, emulsion or in solution also provided is a one step method for the coloring and preservation of wood.
    Type: Application
    Filed: December 12, 2005
    Publication date: July 6, 2006
    Inventors: Jun Zhang, Wenjin Zhang
  • Patent number: 6116863
    Abstract: A microactuated device and method of making the same in which an electromagnetic driver, overlapping a magnetically permeable diaphragm, is utilized to drive the microactuated device. Through the use of an electromagnetic driver to provide the motive force for a microactuated device, exceptional performance may be realized, e.g., with a substantially reduced drive voltage for micropumps, microvalves, and the like, and with stronger and more precise sensory outputs for microactuated sensors and the like. Moreover, by overlapping the electromagnetic driver over a diaphragm, a number of batch processing techniques, each of which is well suited for mass production, may be used in the fabrication of extremely compact and cost effective integrated devices.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: September 12, 2000
    Assignee: University of Cincinnati
    Inventors: Chong H. Ahn, Daniel J. Sadler, Wenjin Zhang