Patents by Inventor William Cheng

William Cheng 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: 6151643
    Abstract: A system and method update client computers of various end users with software updates for software products installed on the client computers, the software products manufacturered by diverse, unrelated software vendors. The system includes a service provider computer system, a number of client computers and software vendor computer systems communicating on a common network. The service provider computer system stores in an update database information about the software updates of the diverse software vendors, identifying the software products for which software updates are available, their location on the network at the various software vendor computer systems, information for identifying in the client computers the software products stored thereon, and information for determining for such products, which have software updates available. Users of the client computers connect to the service provider computer and obtain a current version of portions of the database.
    Type: Grant
    Filed: June 7, 1996
    Date of Patent: November 21, 2000
    Assignee: Networks Associates, Inc.
    Inventors: William Cheng, Kenneth Hwang, Ravi Kannan, Babu Katchapalayam, Bing Liu, Balaji Narasimhan, Gopal Ramanujam, Jonathan Tran
  • Patent number: 6074241
    Abstract: The present invention is directed to an electrical connector 10 having a housing 12 with at least one electrical contact 22 positioned therein. The electrical contact 22 is adapted for electrical engagement with an electrical wire 42 to be positioned within the housing 12. A spring 16 has a fixed end 17 and a free end 18, the fixed end 17 of the spring 16 is used to secure the spring 16 in the housing 12. The free end 18 of the spring 16 is positioned adjacent a tool opening 20 formed in the housing 12. The free end 18 of the spring 16 is adapted to be directly engaged by a tool 13 to be inserted through the tool opening 20 in the housing 12. The free end 18 of the spring 16 further comprises a plurality of retention tabs 35, 36, 37 formed thereon that are adapted for engaging the tool 13 when the tool 13 is inserted into the housing 12 to deflect the spring 16 and thereby allow the insertion of an electrical wire 42 into the connector 10 adjacent the electrical contact 22.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: June 13, 2000
    Assignee: The Whitaker Corporation
    Inventors: Navin Kanjibhai Patel, William Cheng Ouyang, Robert Scott Good
  • Patent number: 6048481
    Abstract: This invention pertains to melt spun fibers of copolymers formed from tetra-fluoro ethylene and perfluorovinyl monomers and a process for their formation. In the process of this invention fibers exhibiting high strength and low shrinkage are drawn from the melt at SSFs of at least 500.times..
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: April 11, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Glenn William Heffner, William Cheng Uy, Martin Gerald Wagner
  • Patent number: 5750064
    Abstract: The disclosed invention relates to a process wherein zein fibers are prepared by contacting zein with a volatile solvent system and dry spinning into a gaseous atmosphere. This process obviates the need for environmentally unfriendly alkaline solutions and acid coagulating baths.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: May 12, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: William Cheng Uy
  • Patent number: 5724885
    Abstract: An improved spatter shielding and vapor venting device for a frying pan comprising a transparent lid to enable visual observation of cooking, a peripheral venting gap to release generated fumes and vapors, a vertical hollow cylindrical wall to rapidly return condensed oil to frying pan, a handle to hold the device steady, a peripheral horizontal flange and size expansion adapter to facilitate placement on rims of frying pans of varying sizes, a vertical cylindrical flange to restrict lateral motion and to shield the contact area between the horizontal flange and frying pan rim, a vertical window opening for the introduction, removal, stirring and turning over of food, a hands-free opening and automatic closing window cover means to effectively shield the window opening even while performing said cooking operations, a loop-and-pin hinged system to facilitate stuck-proof withdrawal of inserted instrument through said window opening.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: March 10, 1998
    Inventor: William Cheng Uy
  • Patent number: 4086949
    Abstract: A lubricating finish composition for filaments, yarns and cords used as reinforcement in rubber articles is comprised of a lubricant oil, a solid lubricant, poly(vinyl alkyl ether) and an emulsifier. A desirable combination of good adhesion and fatigue resistance is provided in reinforced rubber articles.
    Type: Grant
    Filed: February 25, 1977
    Date of Patent: May 2, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: William Cheng Uy
  • Patent number: D287388
    Type: Grant
    Filed: September 25, 1984
    Date of Patent: December 23, 1986
    Assignee: Michael Hung
    Inventor: William Cheng
  • Patent number: RE36072
    Abstract: A spatter shielding and vapor venting device for a frying pan comprising a transparent lid to enable visual observation of cooking, a peripheral venting gap to release generated fumes and vapors, a vertical hollow cylindrical wall to rapidly return condensed oil to frying pan, a handle to hold the device steady, a horizontal flange to facilitate placement on rims of frying pans of varying sizes, a vertical cylindrical flange to restrict lateral motion and to shield the contact area between the horizontal flange and frying pan rim, a vertical window opening for the introduction, removal, stirring and turning over of food, a hands-free opening and automatic closing window cover means to effectively shield the window opening even while performing said cooking operations.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: February 2, 1999
    Inventor: William Cheng Uy