Patents by Inventor Ivan Michael Richards

Ivan Michael Richards 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).

  • Quaternary ammonium compounds
    Patent number: 6951950
    Abstract: The invention features quaternary ammonium compounds of formula I, described herein, and their use in treating asthma, chronic obstructive pulmonary disorder, allergic rhinitis, and infectious rhinitis.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: October 4, 2005
    Assignee: Pharmacia & Upjohn Co
    Inventors: Ivan Michael Richards, Timothy Gordon Heath, Martin Durham Meglasson
  • Method of treating irritable bowel syndrome
    Publication number: 20040220224
    Abstract: The invention features a method of treating irritable bowel syndrome (IBS) by administering quarternary ammonium compounds of formulae I-V, described herein.
    Type: Application
    Filed: April 13, 2004
    Publication date: November 4, 2004
    Applicant: Pfizer Inc
    Inventors: Ivan Michael Richards, Karen Patrice Kolbasa
  • Combination therapies
    Publication number: 20040209916
    Abstract: The invention is directed to methods of treating asthma, COPD, allergic rhinitis, and infectious rhinitis by administering a first pharmaceutical agent including one or more compounds selected from the quarternary ammonium compounds of formulae I-V and a second pharmaceutical agent including one or more pharmaceutical agents selected from Adenosine A2a Receptor Agonists, D2-Dopamine Receptor Agonists, Phosphodiesterase Inhibitors (PDE's), corticosteroids, norepinephrine reuptake inhibitors, 4-hydroxy-7-[2-[2-[3-[2-phenylethoxy]-propylsulphonyl]ethylamino]ethyl]-1,3-benzothiazol-2(3H)-one, and pharmaceutically acceptable salts thereof, and non-quarternized antimuscarinic compounds.
    Type: Application
    Filed: April 13, 2004
    Publication date: October 21, 2004
    Applicant: Pfizer Inc
    Inventors: Ivan Michael Richards, Robert Everett Manning
  • Quaternary ammonium compounds
    Publication number: 20040138289
    Abstract: The invention features quaternary ammonium compounds of formula I, described herein, and their use in treating asthma, chronic obstructive pulmonary disorder, allergic rhinitis, and infectious rhinitis.
    Type: Application
    Filed: October 17, 2003
    Publication date: July 15, 2004
    Inventors: Ivan Michael Richards, Timothy Gordon Heath, Martin Durham Meglasson