Patents by Inventor Steven E Carpenter

Steven E Carpenter 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).

  • Biosensor comprising plant cells capable of exhibiting a state change measurable optically
    Patent number: 7816147
    Abstract: The illustrated embodiment comprises a biosensor utilizing plant cells and nutrient media for maintaining the plant cells in a live condition. A light source having desired optical characteristics is directed onto the plant cells and light spectra transmitted from the cells is detected by a photodetector. A controller analyzes signals from the photodetector to detect a state change in the plant cells in response to exposure to an agent.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: October 19, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Steven E. Carpenter
  • Thermal sensor
    Patent number: 7172730
    Abstract: A thermal sensor has a substrate defining a reaction chamber. The reaction chamber has an inlet for conducting sample into the reaction chamber, a reaction surface and an orifice adjacent the reaction surface defining an outlet from the reaction chamber. The reaction surface is coated with a sorbant for binding agents in the sample. A heat transducer in the substrate and in proximity to the reaction surface is configured for heating the reaction surface.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: February 6, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Steven E. Carpenter
  • Biosensor
    Patent number: 7141414
    Abstract: The illustrated embodiment comprises a biosensor utilizing plant cells and nutrient media for maintaining the plant cells in a live condition. A light source having desired optical characteristics is directed onto the plant cells and light spectra transmitted from the cells is detected by a photodetector. A controller analyzes signals from the photodetector to detect a state change in the plant cells in response to exposure to an agent.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: November 28, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Steven E. Carpenter
  • Nanostructure fabrication using microbial mandrel
    Patent number: 6921670
    Abstract: An array of nanostructures has a multiplicity of nanostructures disposed in a predetermined pattern on a substrate, the nanostructures being oriented in a predetermined orientation, and the nanostructures being characterized by interior dimensions commensurate with the dimensions of predetermined microbes. Methods of fabricating the array are disclosed.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: July 26, 2005
    Assignee: Hewlett-Packard Development Company, LP.
    Inventor: Steven E Carpenter
  • Thermal sensor
    Publication number: 20040110300
    Abstract: A thermal sensor has a substrate defining a reaction chamber. The reaction chamber has an inlet for conducting sample into the reaction chamber, a reaction surface and an orifice adjacent the reaction surface defining an outlet from the reaction chamber. The reaction surface is coated with a sorbant for binding agents in the sample. A heat transducer in the substrate and in proximity to the reaction surface is configured for heating the reaction surface.
    Type: Application
    Filed: December 9, 2002
    Publication date: June 10, 2004
    Inventor: Steven E. Carpenter
  • Biosensor
    Publication number: 20040053353
    Abstract: The illustrated embodiment comprises a biosensor utilizing plant cells and nutrient media for maintaining the plant cells in a live condition. A light source having desired optical characteristics is directed onto the plant cells and light spectra transmitted from the cells is detected by a photodetector. A controller analyzes signals from the photodetector to detect a state change in the plant cells in response to exposure to an agent.
    Type: Application
    Filed: September 16, 2002
    Publication date: March 18, 2004
    Inventor: Steven E. Carpenter
  • Calibration tool for laser particle counters
    Patent number: 6639670
    Abstract: A calibration system for a particle counter comprising a chamber, an air inlet pathway and a supply source of a liquid carrier. The air inlet pathway provides a gaseous substance into the chamber, and the liquid carrier passes through an array of thermal inkjet heads with a plurality of orifices to form a plurality of liquid particles before the liquid particles are entrained by a flow of the gaseous substance. A controller regulates the size, amount, and rate of liquid particles that exit the array.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: October 28, 2003
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Steven E Carpenter
  • Calibration tool for laser particle counters
    Publication number: 20030112434
    Abstract: A calibration system for a particle counter comprising a chamber, an air inlet pathway and a supply source of a liquid carrier. The air inlet pathway provides a gaseous substance into the chamber, and the liquid carrier passes through an array of thermal inkjet heads with a plurality of orifices to form a plurality of liquid particles before the liquid particles are entrained by a flow of the gaseous substance. A controller regulates the size, amount, and rate of liquid particles that exit the array.
    Type: Application
    Filed: December 18, 2001
    Publication date: June 19, 2003
    Inventor: Steven E. Carpenter
  • Windscreen
    Patent number: D681522
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: May 7, 2013
    Assignee: Keel Financial Consulting, Inc.
    Inventors: George W. Schaeffer, Steven E. Carpenter, Jason D. Henerickson