Patents by Inventor Mark C. Campbell

Mark C. Campbell 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: 6805682
    Abstract: A fluid applicator has a fluid-containing cask within which is a displaceable piston operable in response to operation of a piston controller to dispense fluid through a dispensing valve from the cask to an applicator. A handle is removably coupled to the cask to facilitate the application of fluid to a selected site. The handle may be separated from the cask without impairing the ability of the piston to displace fluid from the cask. The valve is manually adjustable to enable a selected quantity of fluid to be dispensed cask.
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: October 19, 2004
    Inventor: Mark C. Campbell
  • Patent number: 5751941
    Abstract: A software testing system tests software. The software testing system includes a set-up and control system, and one or more test systems connected to the set-up and control system. The set-up and control system includes a user interface for interacting with a user of the software testing system. The set-up and control system stores test data and test configurations. Each test system sets up test cases from the test data and the test configurations stored in the set-up and control system. Each test case inherits attributes from at least one test object within the test system. The inherited attributes facilitates the interaction of the test system with the test cases.
    Type: Grant
    Filed: April 4, 1996
    Date of Patent: May 12, 1998
    Assignee: Hewlett-Packard Company
    Inventors: David Hinds, Ana Kapetanakis, Stephen J. McFarland, Mark C. Campbell, David S. Levin, David J. Miller