Patents by Inventor David How

David How 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: 20110148073
    Abstract: A device relocates an underlift/vertical arm assembly from the end of a sub-frame to the boom of a wrecker, and hence whole space of the end of sub-frame is used to design rear outriggers that will certainly exhibit an excellent performance. An advantage of a large space for this specific application is to design a wider span of rear outriggers, as completely extended, to match that of the front outriggers, and in the mean time, the tip of a rear outrigger has a sufficient strength to maintain a good stability. The increased length of overlapping part in each section of the three stage outriggers assists to achieve this goal. As the three stage outriggers are fully extended, the tip of each right/left side is additionally reinforced by a diagonal folding bar which bridges between an outer vertical barrel and the end of primary inner sleeve. Consequently, a combination of wider spans and higher stiffnesses at the tip of the rear outrigger provides the wrecker with a superior stability.
    Type: Application
    Filed: April 23, 2010
    Publication date: June 23, 2011
    Inventor: David How-Hwa Hwang
  • Publication number: 20110150613
    Abstract: The present invention provides an integrated boom/underlift assembly in which an underlift is integrated to a first section of a boom. In order to achieve multifunction of the assembly, the underlift/vertical arm assembly is installed with a hydraulic cylinder, an auxiliary winch, a guide pulley, etc. so that the underlift can be operated independently and work closely with the boom to increase both stability and balance during the lifting operation. Additionally, the invented underlift can extend a much longer distance at a higher position than those currently in the art to catch a wrecked object and then works together with the boom.
    Type: Application
    Filed: April 23, 2010
    Publication date: June 23, 2011
    Inventor: David How-Hwa Hwang
  • Publication number: 20080064667
    Abstract: This invention provides compounds of the formula: wherein A?, X and Y are defined in the specification. These compounds are useful as antibacterial agents.
    Type: Application
    Filed: December 13, 2006
    Publication date: March 13, 2008
    Applicant: Wyeth
    Inventors: Phaik-Eng Sum, David How, Darrin Hopper, Matthew Vera, Joshua Sabatini
  • Publication number: 20070225327
    Abstract: The present invention relates to biaryl sulfonamides and their use as, for example, metalloproteinase inhibitors.
    Type: Application
    Filed: May 31, 2007
    Publication date: September 27, 2007
    Applicant: Wyeth
    Inventors: Jason Xiang, Steve Tam, Yonghan Hu, Phaik-Eng Sum, David How, Darrin Hopper, Matthew Vera, Joshua Sabatini, Thomas Rush, Elisabeth Morris, Katy Georgiadis
  • Publication number: 20070049564
    Abstract: This invention provides compounds of Formula I having the structure where R1, R2, R3 and A are defined in the specification or a pharmaceutically acceptable salt thereof useful as antibacterial agents. Compounds according to Formula (II): where Q, R4, R5, R6 and R10 and A are defined in the specification are useful as chemical intermediates.
    Type: Application
    Filed: August 31, 2006
    Publication date: March 1, 2007
    Applicant: Wyeth
    Inventors: Phaik-Eng Sum, Tarek Mansour, David How, Darrin Hopper, Matthew Vera, Joshua Sabatini, Jaechul Shim
  • Publication number: 20070043066
    Abstract: The present invention relates to modulators of metalloproteinase activity.
    Type: Application
    Filed: July 11, 2006
    Publication date: February 22, 2007
    Applicant: Wyeth
    Inventors: Phaik-Eng Sum, David How, Joshua Sabatini, Jason Xiang, Manus Ipek, Eric Feyfant
  • Publication number: 20050153944
    Abstract: This invention provides compounds of the formula: wherein A?, X and Y are defined in the specification. These compounds are useful as antibacterial agents.
    Type: Application
    Filed: December 8, 2004
    Publication date: July 14, 2005
    Applicant: Wyeth
    Inventors: Phaik-Eng Sum, David How, Darrin Hopper, Matthew Vera, Joshua Sabatini
  • Publication number: 20050130973
    Abstract: The present invention relates to biaryl sulfonamides and their use as, for example, metalloproteinase inhibitors.
    Type: Application
    Filed: December 1, 2004
    Publication date: June 16, 2005
    Applicant: Wyeth
    Inventors: Jason Xiang, Steve Tam, Yonghan Hu, Phaik-Eng Sum, David How, Darrin Hopper, Matthew Vera, Joshua Sabatini, Thomas Rush, Elisabeth Morris, Katy Georgiadis