Patents by Inventor Keith LeJeune

Keith LeJeune 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: 11120681
    Abstract: A system for monitoring hygiene compliance includes multiple location tags, each configured to broadcast a unique identification number, and at least one event tag including a unique event identification tag and configured to detect an occurrence of a compliance event.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: September 14, 2021
    Assignee: ALLEGHENY-SINGER RESEARCH INSTITUTE
    Inventors: Andrew Sahud, William Rout, Keith Lejeune, Gregory Yurko, David A. Smail
  • Patent number: 11066366
    Abstract: Various fentanyl derivatives are described. The derivatives exhibit high binding affinity to opioid receptors, but also have decreased blood brain permeability as compared to standard fentanyl. This, the resulting derivatives can be less addictive than standard fentanyl. Methods of making such derivatives are also disclosed in this document.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: July 20, 2021
    Assignee: Allegheny-Singer Research Institute
    Inventors: Saadyah Averick, Ahmed Badr, Shaohua Li, Keith LeJeune
  • Publication number: 20190251825
    Abstract: A system for monitoring hygiene compliance includes multiple location tags, each configured to broadcast a unique identification number, and at least one event tag including a unique event identification tag and configured to detect an occurrence of a compliance event.
    Type: Application
    Filed: February 13, 2019
    Publication date: August 15, 2019
    Inventors: Andrew SAHUD, William ROUT, Keith LEJEUNE, Gregory YURKO, David A. SMAIL
  • Publication number: 20180273475
    Abstract: Various fentanyl derivatives are described. The derivatives exhibit high binding affinity to opioid receptors, but also have decreased blood brain permeability as compared to standard fentanyl. This, the resulting derivatives can be less addictive than standard fentanyl. Methods of making such derivatives are also disclosed in this document.
    Type: Application
    Filed: September 6, 2016
    Publication date: September 27, 2018
    Inventors: Saadyah Averick, Ahmed Badr, Shaohua Li, Keith LeJeune
  • Publication number: 20060073490
    Abstract: A sensor for the intermittent or continuous detection of the presence of at least one analyte in an environmental sample includes at least one enzyme that is selected to either (i) catalyze a reaction of the analyte to chemically convert the analyte to a product compound or (ii) be inhibited by the analyte in the presence of a substrate compound. The sensor also includes at least one sensor for monitoring or at least one indicator compound selected to produce a measurable change of state as a result of the interaction of the analyte and the enzyme. Optionally, each of the enzyme and the indicator compound are incorporated within a single polymer.
    Type: Application
    Filed: October 6, 2004
    Publication date: April 6, 2006
    Inventors: Keith LeJeune, Richard Mysliwczyk, Paul Holzapfel, Markus Erbeldinger
  • Publication number: 20040005681
    Abstract: A material comprising a porous support and a plurality of enzymes for the removal, decontamination or neutralization of hazardous chemicals such as OP compounds is disclosed. The material may be used on a variety of surfaces, including natural, synthetic and biological surfaces such as skin and other delicate membranes. Also disclosed is a process of making the material, kits and various methods and reactivation devices for reactivating the enzymatic activity of the material.
    Type: Application
    Filed: July 2, 2003
    Publication date: January 8, 2004
    Inventors: Richard K. Gordon, Bhupendra P. Doctor, Ashima Saxena, Shawn R. Feaster, Donald Maxwell, Michelle Ross, David Lenz, Keith LeJeune, Alan Russell
  • Patent number: 6642037
    Abstract: An enzymatically active reusable sponge or foam, capable of regeneration with oximes, made of a polymer such as polyurethane is prepared for detoxification of hazardous compounds such as organophosphorus and organosulfur compounds. The foam or sponge contains a plurality of enzymes including enzymes selected from acetylcholinesterase, butyrylcholinesterase, triesterase, pseudocholinesterase, organophosphate hydrase, phosphotriesterase, paraoxonase and organophosphorus and organosulfur hydrolyzing enzymes. The sponge or foam may additionally contain activated carbon and an enzyme reactivation compound. A kit can be formed containing the sponge or foam and the compound for enzyme reactivation. The enzymatically active foam or sponge may be prepared using a two chamber device where enzymes and prepolymer are passed from separate chambers into a static mixing stator and are subjected to low shear mixing and extrusion to form by the sponge or foam.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: November 4, 2003
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Richard K. Gordon, Bhupendra P. Doctor, Ashima Saxena, Shawn R. Feaster, Donald Maxwell, Michelle Ross, David Lenz, Keith Lejeune, Alan Russell
  • Publication number: 20030113902
    Abstract: A material comprising a porous support and a plurality of enzymes for the removal, decontamination or neutralization of hazardous chemicals such as OP compounds is disclosed. The material may be used on a variety of surfaces, including natural, synthetic and biological surfaces such as skin and other delicate membranes. Also disclosed is a process of making the material, kits and various methods and reactivation devices for reactivating the enzymatic activity of the material.
    Type: Application
    Filed: April 26, 2000
    Publication date: June 19, 2003
    Inventors: Richard K. Gordon, Bhupendra P. Doctor, Ashima Saxena, Shawn R. Feaster, Donald Maxwell, Michelle Ross, David Lenz, Keith Lejeune, Alan Russell, Gregory E. Garcia
  • Patent number: 6406876
    Abstract: Methods, compositions and materials useful in the detection of organophosphorous and organosulfur compounds are disclosed. In particular, biosensors wherein a porous or a non-porous support having an enzyme immobilized upon or within are disclosed. The biosensors exhibit enzymatic stability at extreme temperatures and/or denaturing conditions, and similar kinetic characteristics of the soluble form of the enzymes utilized. The enzyme does not leach from the porous or non-porous support and the material retains enzymatic activity after prolonged storage. Differential biosensors are also disclosed.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: June 18, 2002
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Richard K. Gordon, Bhupendra P. Doctor, Ashima Saxena, Shawn R. Feaster, Donald Maxwell, Michelle Ross, David Lenz, Keith LeJeune, Alan Russell