Patents by Inventor Wei Cen

Wei Cen 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).

  • Patent number: 11929585
    Abstract: A mixer-based microwave signal generation device is provided, and the mixer-based microwave signal generation device includes a microwave local oscillator source, a mixer, a first filter, a laser, an electro-optic modulator, an optical signal delayer, a photodetector, a second filter, an amplifier and a passive power divider.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: March 12, 2024
    Assignee: INSTITUTE OF SEMICONDUCTORS, CHINESE ACADEMY OF SCIENCES
    Inventors: Ming Li, Tengfei Hao, Qizhuang Cen, Yitang Dai, Nuannuan Shi, Wei Li
  • Patent number: 11929788
    Abstract: Disclosed is a microwave photonic Ising machine, including: a closed loop including a phase and electro-optical conversion module and a storage, correlation and photoelectric conversion module connected in turn; a laser light source configured to generate and input an optical signal to the phase and electro-optical conversion module; and a microwave pulse local oscillator source configured to generate and input a microwave pulse signal to the phase and electro-optical conversion module. The phase and electro-optical conversion module is configured to modulate the microwave pulse signal, the optical signal, and a phase-specific two-phase microwave pulse spin electrical signal input from the storage, correlation and photoelectric conversion module to obtain and input a phase-specific two-phase microwave pulse spin optical signal to the storage, correlation and photoelectric conversion module for storage and correlation.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: March 12, 2024
    Assignee: INSTITUTE OF SEMICONDUCTORS, CHINESE ACADEMY OF SCIENCES
    Inventors: Ming Li, Tengfei Hao, Yao Meng, Qizhuang Cen, Yitang Dai, Nuannuan Shi, Wei Li
  • Patent number: 11840508
    Abstract: A catalyst system for olefin polymerization contains a main catalyst and a cocatalyst. The cocatalyst contains a twelve-membered ring compound represented by formula (M). The catalyst system is suitable for preparing polypropylene products having high stereoregularity and low ash, and can regulate the melt index of the products within a wide range by adjusting the amount of hydrogenation. It is also suitable for copolymerization systems to improve the copolymerization yield.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: December 12, 2023
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Jie Lin, Xiaofan Zhang, Ting Huang, Junhui Zhang, Junling Zhou, Zhufang Sun, Xianzhi Xia, Hui Zhao, Zifang Guo, Jin Zhao, Haitao Liu, Meiyan Fu, Jigui Zhang, Lin Qi, Lian Yan, Wei Cen, Yu Wang
  • Publication number: 20230391902
    Abstract: A magnesium-based solid, by means of determination based on a nitrogen adsorption method, has a multimodal pore distribution and a specific surface area of not less than 50 m2/g, and the pore size distribution of the solid is in a range of 1 nm to 300 nm. There is at least one peak within a pore size range of less than 10 nm, and there is at least another peak within a pore size range of not less than 10 nm. A catalyst is formed using the solid catalyst component is used for propylene polymerization.
    Type: Application
    Filed: October 15, 2021
    Publication date: December 7, 2023
    Inventors: Wei CEN, Junling ZHOU, Meiyan FU, Lian YAN, Zhan SHI, Xiaofan ZHANG, Xianzhi XIA, Zhengyang GUO, Jigui ZHANG, Jie LIN, Lin QI, Tianyi ZHANG, Junhui ZHANG, Hui ZHAO, Yu WANG, Ying WANG
  • Publication number: 20220251016
    Abstract: A catalyst system for olefin polymerization contains a main catalyst and a cocatalyst. The cocatalyst contains a twelve-membered ring compound represented by formula (M). The catalyst system is suitable for preparing polypropylene products having high stereoregularity and low ash, and can regulate the melt index of the products within a wide range by adjusting the amount of hydrogenation. It is also suitable for copolymerization systems to improve the copolymerization yield.
    Type: Application
    Filed: July 24, 2020
    Publication date: August 11, 2022
    Inventors: Jie LIN, Xiaofan ZHANG, Ting HUANG, Junhui ZHANG, Junling ZHOU, Zhufang SUN, Xianzhi XIA, Hui ZHAO, Zifang GUO, Jin ZHAO, Haitao LIU, Meiyan FU, Jigui ZHANG, Lin QI, Lian YAN, Wei CEN, Yu WANG
  • Publication number: 20120107259
    Abstract: A personal care composition and a method of using personal care compositions which results in increased fragrance retention when such compositions are applied to a keratin surface including hair and skin. The personal care compositions contain a quaternary ammonium compound, one or more fragrances, and a personal care acceptable carrier.
    Type: Application
    Filed: November 1, 2011
    Publication date: May 3, 2012
    Applicant: Elementis Specialties, Inc.
    Inventors: Raymond Wei CEN, Binhua YANG, Timothy Patrick KENNY
  • Patent number: 6488943
    Abstract: The present invention relates to an antimicrobial wipe effective against Gram positive bacteria, Gram negative bacteria, fungi, yeasts, molds, and viruses comprising a porous or absorbent sheet impregnated with an antimicrobial cleansing composition, wherein the antimicrobial cleansing composition comprises from about 0.001% to about 5.0%, by weight of the antimicrobial cleansing composition, of an antimicrobial active; from about 0.05% to about 10%, by weight of the antimicrobial cleansing composition, of an anionic surfactant; from about 0.1% to about 10%, by weight of the antimicrobial cleansing composition, of a proton donating agent; and from about 3% to about 99.85%, by weight of the antimicrobial cleansing composition, water; wherein the composition is adjusted to a pH of from about 3.0 to about 6.0; wherein the antimicrobial cleansing composition an One-wash Immediate Germ Reduction Index of greater than about 1.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: December 3, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Peter William Beerse, Jeffrey Michael Morgan, Kathleen Grieshop Baier, Theresa Anne Bakken Schuette, Raymond Wei Cen
  • Patent number: 6482423
    Abstract: The present invention relates to an antimicrobial wipe comprising a porous or absorbent sheet impregnated with an antimicrobial cleansing composition, wherein the antimicrobial cleansing composition comprises from about 0.001% to about 5.0%, by weight of the antimicrobial cleansing composition, of an antimicrobial active; from about 0.05% to about 10%, by weight of the antimicrobial cleansing composition, of an anionic surfactant; from about 0.1% to about 10%, by weight of the antimicrobial cleansing composition, of a proton donating agent; and from about 3% to about 99.85%, by weight of the antimicrobial cleansing composition, water; wherein the composition is adjusted to a pH of from about 3.0 to about 6.0; wherein the antimicrobial cleansing composition has a Gram Positive Residual Effectiveness Index of greater than about 0.5; and wherein the antimicrobial cleansing composition has a Mildness Index of less than about 0.3.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: November 19, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Peter William Beerse, Jeffrey Michael Morgan, Kathleen Grieshop Baier, Theresa Anne Bakken Schuette, Raymond Wei Cen, Mannie Lee Clapp, Raphael Warren
  • Patent number: 6428799
    Abstract: The present invention relates to a substantially dry, disposable personal care article suitable for cleansing and/or therapeutically treating comprising a water insoluble substrate which comprises a non-scouring, lofty, low density batting layer which comprises synthetic fibers and wherein said batting layer exhibits a number of physical properties either individually or in combination which are believed to contribute to the overall effectiveness of the personal care article of the present invention. The physical properties of the batting include a Lather Permeability of at least 0.2 g/sec at 7 cm H2O, a Lather Permeability Critical Pressure of less than about 4 cm H2O, an Air Permeability of at least 900 ft3/min/ft2, a Compression Relaxation Hysteresis Value of from about 25% to about 60%, and an Abrasiveness Value of greater than about 15. These articles have been found to be particularly useful for personal cleansing applications, namely for the skin and hair.
    Type: Grant
    Filed: November 19, 1999
    Date of Patent: August 6, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Raymond Wei Cen, Nichola Jacqueline Phipps, Edward Dewey Smith, III
  • Patent number: 6413529
    Abstract: The present invention relates to an antimicrobial wipe comprising a porous or absorbent sheet impregnated with an antimicrobial cleansing composition, wherein the antimicrobial cleansing composition comprises from about 0.001% to about 5.0%, by weight of the antimicrobial cleansing composition, of an antimicrobial active; from about 0.05% to about 10%, by weight of the antimicrobial cleansing composition, of an anionic surfactant; from about 0.1% to about 10%, by weight of the antimicrobial cleansing composition, of a proton donating agent; and from about 3% to about 99.85%, by weight of the antimicrobial cleansing composition, water; wherein the composition is adjusted to a pH of from about 3.0 to about 6.0; wherein the antimicrobial cleansing composition has a Gram Negative Residual Effectiveness Index of greater than about 0.3. The invention also relates to these antibacterial wipes wherein the antimicrobial cleansing composition has a Mildness Index of greater than about 0.3.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: July 2, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Peter William Beerse, Jeffrey Michael Morgan, Kathleen Grieshop Baier, Raymond Wei Cen, Theresa Anne Bakken Schuette
  • Patent number: 6287577
    Abstract: The present invention relates to a leave-on antimicrobial composition comprising from about 0.001% to about 5% of an antimicrobial active; from about 0.05% to about 10% of an anionic surfactant; from about 0.1% to about 10% of a proton donating agent; and from about 0% to about 99.85% of water; wherein the composition is adjusted to a pH of from about 3.0 to about 6.0; wherein the leave-on antimicrobial composition has a Gram Positive Residual Effectiveness Index of greater than about 0.5; and wherein the leave-on antimicrobial composition has a Mildness Index of greater than 0.3. The invention also encompasses methods for cleansing skin and providing residual effectiveness versus Gram positive bacteria using these products.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: September 11, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Peter William Beerse, Jeffrey Michael Morgan, Kathleen Grieshop Baier, Theresa Anne Bakken, Wei Cen, Mannie Lee Clapp, Raphael Warren
  • Patent number: 6284259
    Abstract: The present invention relates to an antimicrobial wipe comprising a porous or absorbent sheet impregnated with an antimicrobial cleansing composition, wherein the antimicrobial cleansing composition comprises from about 0.001% to about 5.0%, by weight of the antimicrobial cleansing composition, of an antimicrobial active; from about 0.05% to about 10%, by weight of the antimicrobial cleansing composition, of an anionic surfactant; from about 0.1% to about 10%, by weight of the antimicrobial cleansing composition, of a proton donating agent; and from about 3% to about 99.85%, by weight of the antimicrobial cleansing composition, water; wherein the composition is adjusted to a pH of from about 3.0 to about 6.0; wherein the antimicrobial cleansing composition has a Gram Positive Residual Effectiveness Index of greater than about 0.5; and wherein the antimicrobial cleansing composition has a Mildness Index of less than about 0.3.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: September 4, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Peter William Beerse, Jeffrey Michael Morgan, Kathleen Grieshop Baier, Theresa Anne Bakken, Wei Cen, Mannie Lee Clapp, Raphael Warren
  • Patent number: 6197315
    Abstract: The present invention relates to an antimicrobial wipe comprising a porous or absorbent sheet impregnated with an antimicrobial cleansing composition, wherein the antimicrobial cleansing composition comprises from about 0.001% to about 5.0%, by weight of the antimicrobial cleansing composition, of an antimicrobial active; from about 0.05% to about 10%, by weight of the antimicrobial cleansing composition, of an anionic surfactant; from about 0.1% to about 10%, by weight of the antimicrobial cleansing composition, of a proton donating agent; and from about 3% to about 99.85%, by weight of the antimicrobial cleansing composition, water; wherein the composition is adjusted to a pH of from about 3.0 to about 6.0; wherein the antimicrobial cleansing composition has a Gram Negative Residual Effectiveness Index of greater than about 0.3. The invention also relates to these antibacterial wipes wherein the antimicrobial cleansing composition has a Mildness Index of greater than about 0.3.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: March 6, 2001
    Assignee: Procter & Gamble Company
    Inventors: Peter William Beerse, Jeffrey Michael Morgan, Kathleen Grieshop Baier, Wei Cen, Theresa Anne Bakken
  • Patent number: 6190675
    Abstract: The present invention relates to a rinse-off antimicrobial cleansing composition comprising from about 0.001% to about 5% of an antimicrobial active, from about 1% to about 80% of an anionic surfactant, from about 0.1% to about 12% of a proton donating agent; and from about 3% to about 98.899% of water, wherein the composition is adjusted to a pH of from about 3.0 to about 6.0, wherein the rinse-off antimicrobial cleansing composition has a Gram Positive Residual Effectiveness Index of greater than about 1.8, and wherein the rinse-off antimicrobial cleansing composition has a Mildness Index of greater than 0.3. The invention also encompasses methods for cleansing skin and providing residual effectiveness versus Gram positive bacteria using these products.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: February 20, 2001
    Assignee: Procter & Gamble Company
    Inventors: Peter William Beerse, Jeffrey Michael Morgan, Kathleen Grieshop Baier, Wei Cen, Theresa Anne Bakken, Mannie Lee Clapp, Raphael Warren
  • Patent number: 6183763
    Abstract: The present invention relates to an antimicrobial wipe effective against Gram positive bacteria, Gram negative bacteria, fungi, yeasts, molds, and viruses comprising a porous or absorbent sheet impregnated with an antimicrobial cleansing composition, wherein the antimicrobial cleansing composition comprises from about 0.001% to about 5.0%, by weight of the antimicrobial cleansing composition, of an antimicrobial active; from about 0.05% to about 10%, by weight of the antimicrobial cleansing composition, of an anionic surfactant; from about 0.1% to about 10%, by weight of the antimicrobial cleansing composition, of a proton donating agent; and from about 3% to about 99.85%, by weight of the antimicrobial cleansing composition, water; wherein the composition is adjusted to a pH of from about 3.0 to about 6.0; wherein the antimicrobial cleansing composition an One-wash Immediate Germ Reduction Index of greater than about 1.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: February 6, 2001
    Assignee: Procter & Gamble Company
    Inventors: Peter William Beerse, Jeffrey Michael Morgan, Kathleen Grieshop Baier, Wei Cen, Theresa Anne Bakken
  • Patent number: 6183757
    Abstract: The present invention relates to a rinse-off antimicrobial cleansing composition effective against Gram positive bacteria, Gram negative bacteria, fungi, yeasts. molds and viruses comprising from about 0.001% to about 5% of an antimicrobial active; from about 1% to about 80% of an anionic surfactant; from about 0.1% to about 12% of a proton donating agent; and from about 3% to about 98.899% of water; wherein the composition is adjusted to a pH of from about 3.0 to about 6.0; wherein the rinse-off antimicrobial cleansing composition has an One-wash Immediate Germ Reduction Index of greater than about 2.5. The invention also encompasses methods for reducing the number of germs from the skin using these products.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: February 6, 2001
    Assignee: Procter & Gamble Company
    Inventors: Peter William Beerse, Jeffrey Michael Morgan, Kathleen Grieshop Baier, Wei Cen, Theresa Anne Bakken
  • Patent number: 5968539
    Abstract: The present invention relates to a rinse-off antimicrobial cleansing composition comprising from about 0.001% to about 5% of an antimicrobial active, from about 1% to about 80% of an anionic surfactant, from about 0.1% to about 12% of a proton donating agent; and from about 3% to about 98.899% of water, wherein the composition is adjusted to a pH of from about 3.0 to about 6.0, wherein the rinse-off antimicrobial cleansing composition has a Gram Negative Residual Effectiveness Index of greater than about 0.3, and wherein the rinse-off antimicrobial cleansing composition has a Mildness Index of greater than 0.3. The invention also encompasses methods for cleansing skin and providing residual effectiveness versus Gram negative bacteria using these products.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: October 19, 1999
    Assignee: Procter & Gamble Company
    Inventors: Peter William Beerse, Jeffrey Michael Morgan, Kathleen Grieshop Baier, Wei Cen, Theresa Anne Bakken
  • Patent number: D883248
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: May 5, 2020
    Assignee: YEALINK (XIAMEN) NETWORK TECHNOLOGY CO., LTD.
    Inventors: Jian Cheng Zhang, Wei Cen Xu, Chun Sheng Su, Jing Feng Su, Lian Chang Zhang, Ji Wei Zhou
  • Patent number: D885360
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: May 26, 2020
    Assignee: YEALINK (XIAMEN) NETWORK TECHNOLOGY CO., LTD.
    Inventors: Jian Cheng Zhang, Wei Cen Xu, Chun Sheng Su, Jing Feng Su, Lian Chang Zhang, Ji Wei Zhou
  • Patent number: D886075
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: June 2, 2020
    Assignee: YEALINK (XIAMEN) NETWORK TECHNOLOGY CO., LTD.
    Inventors: Jian Cheng Zhang, Wei Cen Xu, Chun Sheng Su, Jing Feng Su, Lian Chang Zhang, Ji Wei Zhou