Patents by Inventor Stephen C. Francesconi

Stephen C. Francesconi 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).

  • Portable sampling device for airborne biological particles
    Patent number: 7998731
    Abstract: The present invention relates to a collection device for a substance, and methods related to collecting thereof.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: August 16, 2011
    Assignee: General Dynamics Advanced Information Systems, Inc.
    Inventors: Charles Daitch, Roger Reynolds, Stephen C. Francesconi, Bouvard Hosticka, Kathy Terlesky, Eric J. Van Gieson
  • Miniature particle and vapor collector
    Patent number: 7140265
    Abstract: An apparatus for collecting particles or vapor from air or surfaces comprising: a housing comprising an inlet open to the air to be sampled and an outlet; and a fan having one or more open areas within the housing capable of being driven at a speed effective to cause collection on the surface of the fan of particles or vapor in the air. A method of collecting a particulate sample from air comprising the step of driving a fan having one or more open areas within a housing comprising an inlet open to the air to be sampled and an outlet, at a speed effective to cause collection on the surface of the fan of particles in the air.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: November 28, 2006
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Robert A. McGill, Jennifer L. Stepnowski, Stanley V. Stepnowski, Viet Nguyen, Russell Chung, Eric J. Houser, Stephen C. Francesconi, Ronald L. Kelly
  • Portable sampling device for airborne biological particles
    Publication number: 20040185554
    Abstract: The present invention relates to a collection device for a substance, and methods related to collecting thereof.
    Type: Application
    Filed: March 17, 2003
    Publication date: September 23, 2004
    Applicant: VERIDIAN SYSTEMS
    Inventors: Charles Daitch, Roger Reynolds, Stephen C. Francesconi, Bouvard Hosticka, Kathy Terlesky, Eric J. Van Gieson
  • Miniature particle and vapor collector
    Publication number: 20030230152
    Abstract: An apparatus for collecting particles or vapor from air or surfaces comprising: a housing comprising an inlet open to the air to be sampled and an outlet; and a fan having one or more open areas within the housing capable of being driven at a speed effective to cause collection on the surface of the fan of particles or vapor in the air. A method of collecting a particulate sample from air comprising the step of driving a fan having one or more open areas within a housing comprising an inlet open to the air to be sampled and an outlet, at a speed effective to cause collection on the surface of the fan of particles in the air.
    Type: Application
    Filed: March 6, 2003
    Publication date: December 18, 2003
    Inventors: Robert A. McGill, Jennifer L. Stepnowski, Stanley V. Stepnowski, Viet Nguyen, Russell Chung, Eric J. Houser, Stephen C. Francesconi, Ronald L. Kelly
  • Microbial degradation of trichloroethylene dichloroethylenes and aromatic pollutants
    Patent number: 5543317
    Abstract: A novel bacterium named Pseudomonas cepacia PR1.sub.23 (formerly designated G4 5223 PR1) has the desirable property of constitutively degrading hazardous chemicals, for example trichloroethylene, 1,1-dichloroethylene, cis-1,2 dichloroethylene, trans-1,2-dichloroethylene, toluene, phenol, o-cresol, m-cresol, o-xylene, and benzene, to harmless chemical entities. This microbe, and mutants thereof which retain the constitutive degradation property of the parent, can be used in bioreactor and in situ processes for degrading hazardous chemical compounds. The nucleic acid sequences which encode the degradative peptides have also been isolated and sequenced. Cells transformed with the isolated nucleic acid also produce the peptides comprising the enzyme which can constitutively degrade these hazardous chemicals.
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: August 6, 1996
    Inventors: Malcolm S. Shields, Stephen C. Francesconi