Patents by Inventor Wenji Xia

Wenji Xia 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: 20230232836
    Abstract: This disclosure describes biological pesticides that include biological mannosylerythritol lipids (MELs), and their application. Provided MEL-based pesticides are microbially produced by through microbial (fungal) fermentation of plant-based derivatives or plant-derived materials as a substrate. The biologically active components are obtained from multiple stage bio-processes including transformation, biochemical reaction, extraction, and other processing of raw materials. The synthesis, separation, concentration, purification, preparation of biological pesticides, and their application as a crop pathology treatment, are described. These biological pesticides may be used disease prevention and control for crops and other plants.
    Type: Application
    Filed: January 25, 2023
    Publication date: July 27, 2023
    Applicants: Mikros Biochem, Advanced BioCatalytics Corporation
    Inventors: Wenjie Xia, Larry Tung On Co
  • Publication number: 20220364128
    Abstract: Unique carbon dioxide or lignocellulosic substrate is prepared and used to produce biosurfactants, based on different types of microorganism fermenting strains, using carbon dioxide or lignocellulose-based raw materials as the primary feedstock, subsequently utilizing a fermentation process to synthesize different structures of biosurfactants. This is a two-phase reaction where phase-one creates the feedstock for the phase-two reactions. The fermentation broth resulting from the phase-two reaction is the crude biosurfactant; it uses glycolipid or lipopeptide biosurfactant as the main component. The broth is then refined by filtration, then concentrated, and further purified to obtain the pure biosurfactant material. The biosurfactant of the present disclosure can be applied to industries such as petroleum, food or agriculture, daily chemicals, industrial chemicals, environmental protection, and medicine.
    Type: Application
    Filed: May 12, 2022
    Publication date: November 17, 2022
    Applicant: Mikros Biochem
    Inventor: Wenjie Xia
  • Patent number: 11408264
    Abstract: Disclosed is a method for determining three-dimensional in-situ stress based on displacement measurement of borehole wall, including the following steps: pumping the prefluid and the sand-carrying fluid into the target interval, and injecting the biological oil displacement agent into the target interval in sequence; pumping temporary plugging agent into the target layer to implement crack plugging diverting; pumping the sand-carrying liquid into the target interval, and injecting the biological oil displacement agent into the target interval. The beneficial effect of the technical scheme proposed in this disclosure is: by injecting oil displacement agent to fracturing fluid, the temporary plugging diverting fracturing is integrated constructed with enhanced oil recovery, at the same time, it can overcome the incomplete removal of temporary plugging agent and the water lock effect of fracturing fluid caused by diverting fracturing.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: August 9, 2022
    Assignees: YANGTZE UNIVERSITY, JINGZHOU MODERN PETROLEUM TECHNOLOGY DEVELOPMENT CO. LTD
    Inventors: Weichu Yu, Ying Zhang, Rui Li, Hui Zhao, Lei Zhang, Wenjie Xia, Pingtian Fan, Baocheng Wu, Wenming Shu, Fei Ding
  • Patent number: 11352866
    Abstract: An enhanced oil recovery method includes: screening out implementation well that meet the requirements of a preset standard; selecting the target interval that can be used for enhanced oil recovery in the implementation well; obtaining the reservoir parameters and perforation parameters of the target interval, so as to divide the target interval into several groups of swallowing and exhaling segments, injecting the infection liquid containing and simmer the well for a period of time; and after the well simmering, the oil-water mixture replaced by the injection fluid is produced from each exhaling segment.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: June 7, 2022
    Assignee: YANGTZE UNIVERSITY
    Inventors: Weichu Yu, Ying Zhang, Fei Ding, Lei Zhang, Jianglu Jing, Aibin Wu, Wenming Shu, Zhengdong Lei, Huan Yang, Pingtian Fan, Dongkui Zhou, Hui Zhao, Wenjie Xia, Chaoyi She, Shuaishuai Li, Zhenhu Lv
  • Publication number: 20220127942
    Abstract: Disclosed is a method for determining three-dimensional in-situ stress based on displacement measurement of borehole wall, including the following steps: pumping the prefluid and the sand-carrying fluid into the target interval, and injecting the biological oil displacement agent into the target interval in sequence; pumping temporary plugging agent into the target layer to implement crack plugging diverting; pumping the sand-carrying liquid into the target interval, and injecting the biological oil displacement agent into the target interval. The beneficial effect of the technical scheme proposed in this disclosure is: by injecting oil displacement agent to fracturing fluid, the temporary plugging diverting fracturing is integrated constructed with enhanced oil recovery, at the same time, it can overcome the incomplete removal of temporary plugging agent and the water lock effect of fracturing fluid caused by diverting fracturing.
    Type: Application
    Filed: November 19, 2020
    Publication date: April 28, 2022
    Inventors: Weichu Yu, Ying Zhang, Rui Li, Hui Zhao, Lei Zhang, Wenjie Xia, Pingtian Fan, Baocheng Wu, Wenming Shu, Fei Ding
  • Publication number: 20220064689
    Abstract: Provided herein are amphoteric glycolipid biosurfactants containing an amphoteric glycolipid biological surface active molecule preparation produced by acid precipitation of culture supernatant produced by sequentially culturing Pseudomonas, Candida, and Neurospora, for instance in a fermentation medium comprising a hydrophilic carbon source and a hydrophobic carbon source. Also described are amphoteric glycolipid biological surface active molecule preparations, and methods of making such preparations. The amphoteric molecules have anionic and cationic groups; example molecules include 17-L-[(2?-O-?-D-glucopyranosyl-?-D-Glucosyl)-O-]-octadecenoic acid amine-6?,6? diacetate, and 17-L-[(2?-O-?-D-glucopyranosamine-?-D-rhamnosyl)-O-]-octadecenoic acid-6?,6? diacetate. The amphoteric glycolipid biosurfactant has good compatibility with other types of surfactants, high temperature resistance and salt resistance, and is suitable for use in a variety of liquid systems.
    Type: Application
    Filed: August 25, 2021
    Publication date: March 3, 2022
    Applicant: Mikros Biochem
    Inventor: Wenjie Xia
  • Publication number: 20200193624
    Abstract: A method of dimensioning an object includes: controlling an image sensor of the dimensioning device to capture image data representing the object; controlling a rangefinder of the dimensioning device to determine an object depth relative to the image sensor; detecting, in the image data, image corners representing corners of the object; determining a ground line and one or more measuring points of the image data based on the detected image corners; determining one or more image dimensions of the object based on the ground line and the one or more measuring points; determining a correspondence ratio of an image distance to an actual distance represented by the image distance based on the object depth, the ground line, and the one or more measuring points; and determining one or more dimensions of the object based on the one or more image dimensions and the correspondence ratio.
    Type: Application
    Filed: December 13, 2018
    Publication date: June 18, 2020
    Inventors: Aleksandar Rajak, Wenji Xia
  • Patent number: 6685095
    Abstract: An improved optical code reading system and method that enhances the ability of a reader to locate a symbol within a field of view and enhances the error-correcting properties of the encoding scheme commonly used in 2D bar codes. The reader offsets the effects of damaged finder patterns and missing symbol perimeters and, thereafter, detects high-level symbol information such as the code type, symbol size, and the number of rows and columns in the symbol. The reader then identifies those missing portions of a damaged symbol and marks each missing data bit location with a predetermined indicator. A decoding algorithm then interprets the missing bit indicator as an error of known location (e.g., an “erasure”), thereby nearly doubling the error correcting strength of all bar codes employing the Reed-Solomon error correction scheme.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: February 3, 2004
    Assignee: Symagery Microsystems, Inc.
    Inventors: Alex Roustaei, Wenji Xia, Dennis G. Priddy
  • Publication number: 20020044689
    Abstract: An optical imaging device and method which utilizes global feature extraction and local feature extraction to locate, identify and decode optical codes found within a captured image is disclosed. A global feature extraction unit first processes low-resolution image data to locate regions of interest that potentially contain the code(s). If no regions of interest are identified by processing the low-resolution image data, the global feature extraction unit then processes higher-resolution image data to locate the regions of interest. Any regions of interest located by the global feature extraction unit are then transferred to a local feature extraction unit which identifies and decodes a code found within a region of interest. Both the global feature extraction unit and the local feature extraction unit can begin processing data representative of portions of the image being captured before all of the data representative of the complete image is transferred to the respective unit.
    Type: Application
    Filed: March 5, 2001
    Publication date: April 18, 2002
    Inventors: Alex Roustaei, Kevin Xiao, Wenji Xia
  • Publication number: 20020041712
    Abstract: An improved optical code reading system and method that enhances the ability of a reader to locate a symbol within a field of view and enhances the error-correcting properties of the encoding scheme commonly used in 2D bar codes. The reader offsets the effects of damaged finder patterns and missing symbol perimeters and, thereafter, detects high-level symbol information such as the code type, symbol size, and the number of rows and columns in the symbol. The reader then identifies those missing portions of a damaged symbol and marks each missing data bit location with a predetermined indicator. A decoding algorithm then interprets the missing bit indicator as an error of known location (e.g., an “erasure”), thereby nearly doubling the error correcting strength of all bar codes employing the Reed-Solomon error correction scheme.
    Type: Application
    Filed: March 5, 2001
    Publication date: April 11, 2002
    Inventors: Alex Roustaei, Wenji Xia, Dennis G. Priddy
  • Patent number: D1048761
    Type: Grant
    Filed: May 9, 2024
    Date of Patent: October 29, 2024
    Inventor: Wenjie Xia