Patents by Inventor John Francis Engel

John Francis Engel 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).

  • Reduction compositions and processes for making the same
    Patent number: 6444190
    Abstract: Novel reduction compositions are prepared from an active hydride, an additive, and a Lewis base in a hydrocarbon solvent. Such compositions can provide a superior reducing system for organic substrates.
    Type: Grant
    Filed: March 4, 1999
    Date of Patent: September 3, 2002
    Assignee: FMC Corporation
    Inventors: Anne Pautard-Cooper, Eric John Granger, Philip Franklin Sims, James Anthony Schwindeman, John Francis Engel, Terry Lee Rathman
  • Terminal olefin functionalized macromonomers
    Publication number: 20010053838
    Abstract: Polymer macromonomers with terminal olefin functionality are prepared by dehydration of polymers with terminal hydroxyl and/or amine functionality. The polymers with terminal hydroxyl and/or amine functionality can be prepared with protected hydroxyl and amine functional organolithium initiators.
    Type: Application
    Filed: March 20, 2001
    Publication date: December 20, 2001
    Applicant: FMC Corporation
    Inventors: Roderic P. Quirk, James A. Schwindeman, Robert J. Letchford, John Francis Engel
  • Method of preliminarily heat treating positive electrodes of secondary lithium and lithium-ion Batteries and resulting positive electrodes and batteries
    Patent number: 6218048
    Abstract: The present invention includes a method of preparing secondary lithium and lithium-ion batteries with improved coulombic efficiency, improved cycling and storage performance at elevated temperatures, and lower rates of transition metal dissolution. In accordance with the present invention, the positive electrode material is thermally treated at a temperature of between 50° C. and 120° C. to produce a passivating film having lithium ion conductivity. The present invention also includes a secondary lithium or lithium-ion cell having positive electrode material covered with a thermally-activated thin passivating film having lithium ion conductivity and a positive electrode material formed of particles of a lithium intercalation compound with a passivating film on the surface of the particles.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: April 17, 2001
    Assignee: FMC Corporation
    Inventors: Vesselin Manev, Titus Faulkner, D. Wayne Barnette, John Francis Engel
  • Phosphoro-aminosulfenyl derivatives of benzofuran carbamates
    Patent number: 4024277
    Abstract: A new class of compounds comprising [(N-disubstituted phosphoro)-(N-alkyl)aminosulfenyl]-substituted carbamic acid esters of 2,3-dihydro-7-benzofuranol exhibit outstanding insecticidal activity. The preparation of these compounds, their physical properties, formulation and use to control both household insects and crop pests are exemplified.
    Type: Grant
    Filed: October 16, 1975
    Date of Patent: May 17, 1977
    Assignee: FMC Corporation
    Inventor: John Francis Engel