Patents by Inventor Christian J Schwartz

Christian J Schwartz 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).

  • Easily dispensed, anti-traction, mobility denial system
    Patent number: 7419942
    Abstract: The present invention relates to a lubricious anti-traction material for effectively denying the mobility and access of personnel and vehicles to selected areas. The anti-traction material is composed of a slurry combined with water. The slurry is composed of an emulsion or dispersion and an anionic acrylamide polymer.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: September 2, 2008
    Assignee: Southwest Research Institute
    Inventors: Nancy J. Mallow, legal representative, Ronald J. Mathis, Andrew Warren, Christian J Schwartz, Errol M. Brigance, Kenneth R. Collins, Nicholle K. Reinhardt, Mary C. Marshall, William A. Mallow
  • Easily dispensed, anti-traction, mobility denial system
    Patent number: 7067464
    Abstract: The present invention relates to a lubricious anti-traction material for effectively denying the mobility and access of personnel and vehicles to selected areas. The anti-traction material is composed of a slurry combined with water. The slurry is composed of an emulsion or dispersion and an anionic acrylamide polymer.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: June 27, 2006
    Assignee: Southwest Research Institute
    Inventors: Nancy J. Mallow, Ronald J. Mathis, Andrew Warren, Christian J Schwartz, Errol M. Brigance, Kenneth R. Collins, Nicholle K. Reinhardt, Mary C. Marshall, William A. Mallow
  • Easily dispensed, anti-traction, mobility denial system
    Publication number: 20040059043
    Abstract: The present invention relates to a lubricious anti-traction material for effectively denying the mobility and access of personnel and vehicles to selected areas. The anti-traction material is composed of a slurry combined with water. The slurry is composed of an emulsion or dispersion and an anionic acrylamide polymer.
    Type: Application
    Filed: October 15, 2003
    Publication date: March 25, 2004
    Applicant: SOUTHWEST RESEARCH INSTITUTE
    Inventors: William A. Mallow, Nancy J. Mallow, Ronald J. Mathis, Andrew B. Warren, Christian J. Schwartz, Errol M. Brigance, Kenneth R. Collins, Nicholle K. Reinhardt, Mary C. Marshall
  • Easily dispensed, anti-traction, mobility denial system
    Publication number: 20030144407
    Abstract: The present invention relates to a lubricious anti-traction material for effectively denying the mobility and access of personnel and vehicles to selected areas. The anti-traction material is composed of a slurry combined with water. The slurry is composed of an emulsion or dispersion and an anionic acrylamide polymer.
    Type: Application
    Filed: December 10, 2002
    Publication date: July 31, 2003
    Applicant: Southwest Research Institute
    Inventors: William A. Mallow, Nancy J. Mallow, Ronald J. Mathis, Andrew Warren, Christian J. Schwartz, Errol M. Brigance, Kenneth R. Collins, Nicholle K. Reinhardt, Mary C. Marshall
  • Apparatus and method for analysis of guided ultrasonic waves
    Patent number: 6581014
    Abstract: Method and apparatus for using a guided wave to determine the location of one or more flaws in an inspected object are disclosed. An ultrasonic guided wave is launched into the object using conventional ultrasound methods, and the reflected/received guided wave is sampled to capture a series of individual reflected waveforms. The individual reflected waveforms are then partitioned according to the sampling time. Each of the partitioned acquired waveforms is compared with a selected time-varying dispersion-modeled reference waveform associated with the unique geometry of the inspected object, a multiplicity of “theoretical” flaw locations, and the characteristics of the original ultrasonic guided wave. To make a comparison, the reference waveform is also generated as a series of partitioned waveforms which model the shape of a wave that may be expected to be reflected from a multiplicity of theoretical flaws located in the object.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: June 17, 2003
    Assignee: Southwest Research Institute
    Inventors: James A. Sills, Christian J. Schwartz
  • Apparatus and method for analysis of guided ultrasonic waves
    Publication number: 20020029116
    Abstract: Method and apparatus for using a guided wave to determine the location of one or more flaws in an inspected object are disclosed. An ultrasonic guided wave is launched into the object using conventional ultrasound methods, and the reflected/received guided wave is sampled to capture a series of individual reflected waveforms. The individual reflected waveforms are then partitioned according to the sampling time. Each of the partitioned acquired waveforms is compared with a selected time-varying dispersion-modeled reference waveform associated with the unique geometry of the inspected object, a multiplicity of “theoretical” flaw locations, and the characteristics of the original ultrasonic guided wave. To make a comparison, the reference waveform is also generated as a series of partitioned waveforms which model the shape of a wave that may be expected to be reflected from a multiplicity of theoretical flaws located in the object.
    Type: Application
    Filed: April 9, 2001
    Publication date: March 7, 2002
    Inventors: James A. Sills, Christian J. Schwartz