Patents by Inventor Ai J. Lin

Ai J. Lin 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: 7253177
    Abstract: The invention relates to derivatives of pyrroloquinazolinediamine, more specifically derivatives of 7-(substituted)-7H-pyrrolo[3,2-F] quinazoline-1,3-diamines that are non-toxic and are also effective in the treatment of malaria, including P. falciparum and P. vivax strains. The derivatives are certain carbamate derivatives, succinimide derivatives, alkylcarboxamides derivatives and acetamide derivative, phthalimides, alkylamines and all other amide and imide derivatives and their 1-hydroxy analogs. The derivatives of the present invention are also soluble in common organic solvents to facilitate the purification in a large scale synthesis of the composition.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: August 7, 2007
    Assignee: United States of America as Represented by the Secretary of the Army
    Inventors: Ai J. Lin, Jian Guan, Quan Zhang, Donald R. Skillman
  • Patent number: 6800618
    Abstract: A compound having the structural formula or a pharmaceutically acceptable salt or prodrug thereof, wherein X is a substituted or unsubstituted alkyl or a heteroatom; n is 4, 5 or 6; Y is a substituted or unsubstituted alkyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, or wherein R1 and R2 are each independently, H, a heteroatom, substituted or unsubstituted alkyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; and wherein each ring structure are independently substituted or unsubstituted is disclosed. Also disclosed are chemosensitizing agents and methods of modulating, attenuating, reversing, or affecting a cell's or organism's resistance to a given drug such as an antimalarial.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: October 5, 2004
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Ai J. Lin, Jian Guan, Dennis E. Kyle, Wilbur K. Milhous
  • Patent number: 6664280
    Abstract: As disclosed herein, the present invention provides a compound having the structural formula wherein R1, R2, R3, and R4 are each independently H, or a methyl, halo, trifluoromethyl, nitro, alkyloxy, or acyloxy group, or a pharmaceutically acceptable salt or prodrug thereof. Also disclosed are compounds, compositions, methods and kits for treating, preventing, or inhibiting injuries induced by a vesicant agent, such as bis-2-chloroethylsulfide (HD). Additionally, protectants and decontaminants are disclosed.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: December 16, 2003
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Ai J. Lin, Michael C. Babin
  • Publication number: 20030171424
    Abstract: Chemical entities of artelinic acid-L-lysine salts and their intravenous formulation for treatment of severe and complicated malaria, especially the cerebral malaria, which is fatal if not treated promptly, and method of making an intravenous artelinic acid-L-lysine salt formulation.
    Type: Application
    Filed: February 27, 2003
    Publication date: September 11, 2003
    Inventors: Ai J. Lin, John VanHamont, Wilbur K. Milhous
  • Publication number: 20030055090
    Abstract: As disclosed herein, the present invention provides a compound having the structural formula 1
    Type: Application
    Filed: June 17, 2002
    Publication date: March 20, 2003
    Inventors: Ai J. Lin, Michael C. Babin
  • Publication number: 20030032801
    Abstract: A compound having the structural formula 1
    Type: Application
    Filed: May 7, 2001
    Publication date: February 13, 2003
    Inventors: Ai J. Lin, Jian Guan, Dennis E. Kyle, Wilbur K. Milhous
  • Patent number: 4791135
    Abstract: This invention relates to novel dihydroartemisinin derivatives, including their pharmaceutically-acceptable salts, which are therapeutically-effective in the pre- and post-treatment of malarial infections.
    Type: Grant
    Filed: August 20, 1987
    Date of Patent: December 13, 1988
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Ai J. Lin, Daniel L. Klayman, Wilbur K. Milhous