Patents by Inventor Kecheng Li

Kecheng Li 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: 20240044450
    Abstract: An example monitoring device for a steam trap includes: an enclosure; a sensor subsystem housed in the enclosure, the sensor subsystem to measure a property of the steam trap; a memory housed in the enclosure; a communications interface housed in the enclosure and configured to communicate with a server; a processor housed in the enclosure and interconnected to the sensor subsystem, the memory, and the communications interface, the processor configured to: obtain, from the sensor subsystem, data representing the property of the steam trap; extract a set of key features from the data; and send, via the communications interface, the set of key features to the server for further processing to detect a failure.
    Type: Application
    Filed: December 4, 2020
    Publication date: February 8, 2024
    Inventors: Thomas Farnham Uhlenbruck, Vivek Eknath Naik, Bryan Neil Stephen Fedorak, Jeffrey George Dayman, Tyko Everest Van Vliet, Brandon Cameron Chan, Kecheng Li, Kevin Zhang
  • Publication number: 20240018344
    Abstract: A biodegradable bioplastic may be formed from starch or cellulose. A carbohydrate may be reacted with chloroacetamide and further reacted with one or more cross-linking agents to obtain a bioplastic material. The bioplastic material may be insoluble in water, and/or hydrophobic and/or substantially transparent. The bioplastic material may be formed into numerous shapes and structures. The bioplastic material may have high toughness, flexibility and/or moldability whereby the material is suitable for further processing into a wide variety of different shapes and structures. The bioplastic material may also be utilized as a barrier or coating on paper or other substrates for food packaging and other applications.
    Type: Application
    Filed: July 17, 2023
    Publication date: January 18, 2024
    Inventors: Abdus Salam, Kecheng Li
  • Patent number: 9394648
    Abstract: A process for pretreating lignocellulosic biomass that increases monomeric sugar yields in subsequent enzymatic hydrolysis and reduces specific energy consumption during production of the hydrolysable material. The pretreatment includes a chemical treatment followed by a mechanical size reduction such as a disc refining step, and includes a second chemical treatment, harsher than the first, which may precede or follow the size reduction.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: July 19, 2016
    Assignee: UNIVERSITY OF NEW BRUNSWICK
    Inventors: Dennis Fougere, Kecheng Li
  • Patent number: 9145640
    Abstract: A process using a multicomponent enzyme preparation to treat chips that have been crushed using a device that combines shear and compressive forces where treatment occurs mainly during decompression and reduces the specific energy consumption and/or increasing production of subsequent refining while maintaining or increasing handsheet physical properties. The enzyme preparation is to have a major endoglucanase activity, a significant mannanase activity and a slight cellobiohydrolase activity. This enzyme mixture is prepared from a genetically modified strain of Trichoderma reseii.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: September 29, 2015
    Assignee: UNIVERSITY OF NEW BRUNSWICK
    Inventors: Kecheng Li, Andre Pelletier
  • Patent number: 9127401
    Abstract: A process using a multicomponent enzyme preparation to treat screened once refined pulps and reduces the specific energy consumption and/or increasing production while maintaining or increasing handsheet physical properties. The enzyme preparation has a major endoglucanase activity, a significant mannanase activity and a relatively small cellobiohydrolase activity. This enzyme mixture is prepared from a genetically modified strain of Trichoderma reseii.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: September 8, 2015
    Assignee: UNIVERSITY OF NEW BRUNSWICK
    Inventors: Kecheng Li, Andre Pelletier, Yu Zhao
  • Patent number: 8970850
    Abstract: Methods of performing surface profilometry are provided. A low coherence light beam is scanned relative to a sample surface. The intensity of interference fringes generated by the interference of a sample beam and a reference beam are recorded by an image sensor. Variations of light intensity around each pixel are calculated in terms of variance or standard derivation. The peak position of variance on a particular location along vertical scan direction is identified as the scan position corresponding to zero optical path difference between the reference and measuring beams. A topography map (height map) may be generated using the relative scanning position where zero optical path difference occurs at each location on sample surface.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: March 3, 2015
    Assignee: University of New Brunswick
    Inventors: Dongbo Yan, Kecheng Li
  • Publication number: 20140209260
    Abstract: A process using a multicomponent enzyme preparation to treat chips that have been crushed using a device that combines shear and compressive forces where treatment occurs mainly during decompression and reduces the specific energy consumption and/or increasing production of subsequent refining while maintaining or increasing handsheet physical properties. The enzyme preparation is to have a major endoglucanase activity, a significant mannanase activity and a slight cellobiohydrolase activity. This enzyme mixture is prepared from a genetically modified strain of Trichoderma reseii.
    Type: Application
    Filed: January 31, 2013
    Publication date: July 31, 2014
    Applicant: UNIVERSITY OF NEW BRUNSWICK
    Inventors: Kecheng LI, Andre PELLETIER
  • Publication number: 20140209261
    Abstract: A process for pretreating lignocellulosic biomass that increases monomeric sugar yields in subsequent enzymatic hydrolysis and reduces specific energy consumption during production of the hydrolysable material. The pretreatment includes a chemical treatment followed by a mechanical size reduction such as a disc refining step, and includes a second chemical treatment, harsher than the first, which may precede or follow the size reduction.
    Type: Application
    Filed: January 30, 2014
    Publication date: July 31, 2014
    Applicant: University of New Brunswick
    Inventors: Dennis FOUGERE, Kecheng LI
  • Publication number: 20140209259
    Abstract: A process using a multicomponent enzyme preparation to treat screened once refined pulps and reduces the specific energy consumption and/or increasing production while maintaining or increasing handsheet physical properties. The enzyme preparation has a major endoglucanase activity, a significant mannanase activity and a relatively small cellobiohydrolase activity. This enzyme mixture is prepared from a genetically modified strain of Trichoderma reseii.
    Type: Application
    Filed: January 31, 2013
    Publication date: July 31, 2014
    Applicant: UNIVERSITY OF NEW BRUNSWICK
    Inventors: Kecheng LI, Andre PELLETIER, Yu ZHAO
  • Publication number: 20140168660
    Abstract: Methods of performing surface profilometry are provided. A low coherence light beam is scanned relative to a sample surface. The intensity of interference fringes generated by the interference of a sample beam and a reference beam are recorded by an image sensor. Variations of light intensity around each pixel are calculated in terms of variance or standard derivation. The peak position of variance on a particular location along vertical scan direction is identified as the scan position corresponding to zero optical path difference between the reference and measuring beams. A topography map (height map) may be generated using the relative scanning position where zero optical path difference occurs at each location on sample surface.
    Type: Application
    Filed: March 12, 2013
    Publication date: June 19, 2014
    Applicant: UNIVERSITY OF NEW BRUNSWICK
    Inventors: Dongbo YAN, Kecheng Li
  • Patent number: 8342030
    Abstract: An apparatus comprising a housing comprising an end wall and side walls defining a first chamber open at one end a slide at the open end a diaphragm in the chamber spaced from the slide and generally parallel to it, defining, with the slide and side walls of the first chamber, a second chamber; and an opening in the first chamber for permitting fluid to enter and exit the first chamber.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: January 1, 2013
    Assignee: University of New Brunswick
    Inventors: Dongbo Yan, Kecheng Li
  • Patent number: 8244022
    Abstract: A method for measuring a property of a fiber, such as flexibility, collapsibility and moment of inertia. A fiber is wetted and deformed in its wet state, and an optical section image of the deformed fiber is taken. A measurement is made on the image and the desired property is calculated using the measurement.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: August 14, 2012
    Assignee: University of New Brunsick
    Inventors: Kecheng Li, Dongbo Yan
  • Publication number: 20090279743
    Abstract: A method for measuring a property of a fibre, such as flexibility, collapsibility and moment of inertia. A fibre is wetted and deformed in its wet state, and an optical section image of the deformed fibre is taken. A measurement is made on the image and the desired property is calculated using the measurement.
    Type: Application
    Filed: May 6, 2008
    Publication date: November 12, 2009
    Applicant: University of New Brunswick
    Inventors: Kecheng Li, Dongbo Yan