Patents by Inventor Elso DiFranco

Elso DiFranco 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).

  • METHODS OF MANUFACTURE OF SURAMIN
    Publication number: 20240009152
    Abstract: Pharmaceutical compositions comprising suramin and methods of preparing synthetic intermediates useful for the preparation of suramin are described herein.
    Type: Application
    Filed: April 14, 2023
    Publication date: January 11, 2024
    Inventors: Matthew E. CALDER, Elso DIFRANCO, Keith L. SPENCER
  • Method for isolating oleic acid and producing lineloic dimer/trimer acids via selective reactivity
    Patent number: 6835324
    Abstract: A method whereby polyunsaturated components of fatty acids are conjugated and selectively polymerized in the presence of monounsaturated components, mainly oleic acid. Separation techniques are employed to isolate oleic acid and the linoleic acid-based dimer/trimer acids produced.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: December 28, 2004
    Assignee: Arizona Chemical Company
    Inventor: Elso DiFranco
  • Amino acid derivatives
    Patent number: 6809207
    Abstract: The present invention provides certain alpha-amino acids and derivatives thereof, such as, but not limited to, esters, amides and salts. These derivatives may comprise such representative side groups as a phenyl, pyridyl, piperidinyl, tetrahydropyranyl, tetrahydrothiopyranyl, or thienyl group. The present invention further provides a method for synthesizing alpha-amino acids and derivatives thereof via a modified Ugi type reaction using an aldehyde, ammonium formate and a C1-C5 alkyl isocyanide. The compounds provided by this method are useful in the development of new pharmaceuticals for the treatment of human diseases.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: October 26, 2004
    Assignee: PharmaCore, Inc.
    Inventors: Sekar Alla, Seung-Yong Choi, Dale Dhanoa, Elso DiFranco, Galina Krokhina, Keqiang Li, Balasubramanian Thiagarajan, Wen-Chun Zhang
  • Quaternary amino acids on solid supports
    Patent number: 6713580
    Abstract: The present invention relates to novel templates useful for generating novel compounds and to compounds produced utilizing the templates. The templates comprise quaternary amino acids that may be linked to solid supports. These templates make possible the production of novel classes of chemical compounds through a plurality of chemical reactions. The templates are advantageous for use in drug discovery regimes.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: March 30, 2004
    Assignee: Pharmacore, Inc.
    Inventors: Michael Johnson, Keqiang Li, Elso DiFranco, Daljit S. Dhanoa
  • Amino acid derivatives
    Publication number: 20030064976
    Abstract: The present invention provides certain alpha-amino acids and derivatives thereof, such as, but not limited to, esters, amides and salts. The present invention also provides a novel method for the synthesis of alpha-amino acids and derivatives thereof.
    Type: Application
    Filed: July 24, 2002
    Publication date: April 3, 2003
    Inventors: Sekar Alla, Seung-Yong Choi, Dale Dhanoa, Elso DiFranco, Galina Krokhina, Keqiang Li, Thiagarajan Balasubramanian, Wen-Chun Zhang