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).
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Publication number: 20240044450Abstract: 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: ApplicationFiled: December 4, 2020Publication date: February 8, 2024Inventors: Thomas Farnham Uhlenbruck, Vivek Eknath Naik, Bryan Neil Stephen Fedorak, Jeffrey George Dayman, Tyko Everest Van Vliet, Brandon Cameron Chan, Kecheng Li, Kevin Zhang
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Publication number: 20240018344Abstract: 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: ApplicationFiled: July 17, 2023Publication date: January 18, 2024Inventors: Abdus Salam, Kecheng Li
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Patent number: 9394648Abstract: 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: GrantFiled: January 30, 2014Date of Patent: July 19, 2016Assignee: UNIVERSITY OF NEW BRUNSWICKInventors: Dennis Fougere, Kecheng Li
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Patent number: 9145640Abstract: 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: GrantFiled: January 31, 2013Date of Patent: September 29, 2015Assignee: UNIVERSITY OF NEW BRUNSWICKInventors: Kecheng Li, Andre Pelletier
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Patent number: 9127401Abstract: 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: GrantFiled: January 31, 2013Date of Patent: September 8, 2015Assignee: UNIVERSITY OF NEW BRUNSWICKInventors: Kecheng Li, Andre Pelletier, Yu Zhao
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Patent number: 8970850Abstract: 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: GrantFiled: March 12, 2013Date of Patent: March 3, 2015Assignee: University of New BrunswickInventors: Dongbo Yan, Kecheng Li
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Publication number: 20140209260Abstract: 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: ApplicationFiled: January 31, 2013Publication date: July 31, 2014Applicant: UNIVERSITY OF NEW BRUNSWICKInventors: Kecheng LI, Andre PELLETIER
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Publication number: 20140209261Abstract: 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: ApplicationFiled: January 30, 2014Publication date: July 31, 2014Applicant: University of New BrunswickInventors: Dennis FOUGERE, Kecheng LI
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Publication number: 20140209259Abstract: 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: ApplicationFiled: January 31, 2013Publication date: July 31, 2014Applicant: UNIVERSITY OF NEW BRUNSWICKInventors: Kecheng LI, Andre PELLETIER, Yu ZHAO
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Publication number: 20140168660Abstract: 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: ApplicationFiled: March 12, 2013Publication date: June 19, 2014Applicant: UNIVERSITY OF NEW BRUNSWICKInventors: Dongbo YAN, Kecheng Li
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Patent number: 8342030Abstract: 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: GrantFiled: October 22, 2010Date of Patent: January 1, 2013Assignee: University of New BrunswickInventors: Dongbo Yan, Kecheng Li
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Patent number: 8244022Abstract: 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: GrantFiled: May 6, 2008Date of Patent: August 14, 2012Assignee: University of New BrunsickInventors: Kecheng Li, Dongbo Yan
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Publication number: 20090279743Abstract: 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: ApplicationFiled: May 6, 2008Publication date: November 12, 2009Applicant: University of New BrunswickInventors: Kecheng Li, Dongbo Yan