Patents by Inventor Hairong Guan

Hairong Guan 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: 12206296
    Abstract: A motor controller includes a housing, a power circuit board, and a control circuit board. The housing includes a first mounting platform, a second mounting platform, and a side wall. There is a height difference between the first mounting platform and the second mounting platform. The first mounting platform is disposed on an upper part of the side wall, and the second mounting platform is disposed on a middle part of the side wall. The second mounting platform is disposed on one side of the first mounting platform. The first mounting platform and the side wall form an upper chamber, and the control circuit board and the power circuit board are disposed in the upper chamber. The control circuit board is closer to the first mounting platform than the power circuit board. The second mounting platform and the side wall form a lower chamber communicating with the upper chamber.
    Type: Grant
    Filed: August 30, 2022
    Date of Patent: January 21, 2025
    Assignee: ZHONGSHAN BROAD-OCEAN MOTOR CO., LTD.
    Inventors: Jianhui Li, Gui Zhang, Hairong Sun, Chao Guan, Xiaosan Xu, Yunsheng Chen
  • Patent number: 9809525
    Abstract: A method of making terephthalic acid via reductive coupling of two molecules of propiolic acid or propiolic acid derivatives is presented. The reductive coupling can be catalyzed by compounds comprising metals, and propiolic acid or propiolic acid derivatives can be produced from acetylene and carbon dioxide. At least 4 of the 8 carbons in the terephthalic acid are non-fossil-derived.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: November 7, 2017
    Assignee: The Procter & Gamble Company
    Inventors: Jeffrey Charles Hayes, Hairong Guan, Dimitris Ioannis Collias
  • Publication number: 20160264506
    Abstract: A method of making terephthalic acid via reductive coupling of two molecules of propiolic acid or propiolic acid derivatives is presented. The reductive coupling can be catalyzed by compounds comprising metals, and propiolic acid or propiolic acid derivatives can be produced from acetylene and carbon dioxide. At least 4 of the 8 carbons in the terephthalic acid are non-fossil-derived.
    Type: Application
    Filed: March 11, 2016
    Publication date: September 15, 2016
    Inventors: Jeffrey Charles Hayes, Hairong Guan, Dimitris Ioannis Collias
  • Publication number: 20150274621
    Abstract: The homogeneous hydrogenation of organic carbonyls, especially esters, under relatively mild conditions using iron hydrido-borohydride catalyst complexes having amino-phosphine pincer ligands. The catalyst and process are well-suited for catalyzing the hydrogenation of a wide variety of organic carbonyls, such as hydrogenation of fatty acid esters to alcohols. In particular embodiments, the process can be carried out in the absence of solvent.
    Type: Application
    Filed: March 23, 2015
    Publication date: October 1, 2015
    Inventors: Neil Thomas FAIRWEATHER, Michael Steven GIBSON, Hairong GUAN, Sumit CHAKRABORTY, Huiguang DAI, Papri BHATTACHARYA
  • Patent number: 7834224
    Abstract: Disclosed are iron ligand catalysts for selective hydrogenation of aldehydes, ketones and imines. A catalyst such as dicarbonyl iron hydride hydroxycyclopentadiene) complex uses the OH on the five member ring and hydrogen linked to the iron to facilitate hydrogenation reactions, particularly in the presence of hydrogen gas.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: November 16, 2010
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Charles P. Casey, Hairong Guan
  • Publication number: 20100286401
    Abstract: Disclosed are iron ligand catalysts for selective hydrogenation of aldehydes, ketones and imines. A catalyst such as dicarbonyl iron hydride hydroxycyclopentadiene) complex uses the OH on the five member ring and hydrogen linked to the iron to facilitate hydrogenation reactions, particularly in the presence of hydrogen gas.
    Type: Application
    Filed: November 20, 2007
    Publication date: November 11, 2010
    Inventors: Charles P. Casey, Hairong Guan