Patents by Inventor Douglas A. Lorenz

Douglas A. Lorenz 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).

  • Publication number: 20070287719
    Abstract: The invention relates to compounds of the formula or a pharmaceutically acceptable salt, prodrug or hydrates thereof. The invention also relates to pharmaceutical compositions containing the compounds of formula 1 and to methods of treating hyperproliferative disorders in a mammal by administering the compounds of formula 1.
    Type: Application
    Filed: December 8, 2006
    Publication date: December 13, 2007
    Inventors: Tracy Boyden, Susan La Greca, Feng Guo, Douglas Lorenz, Ravi Shanker, Franzanne Vreeland
  • Publication number: 20070282009
    Abstract: A pharmaceutical composition comprises a solid amorphous dispersion of a cholesteryl ester transfer protein inhibitor and a concentration-enhancing polymer.
    Type: Application
    Filed: April 30, 2007
    Publication date: December 6, 2007
    Inventors: Marshall Crew, William Curatolo, Dwayne Friesen, Michael Gumkowski, Douglas Lorenz, James Nightlingale, Roger Ruggeri, Ravi Shanker
  • Patent number: 7235259
    Abstract: A pharmaceutical composition comprises a solid amorphous dispersion of a cholesteryl ester transfer protein inhibitor and a concentration-enhancing polymer.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: June 26, 2007
    Assignee: Pfizer Inc
    Inventors: Marshall D. Crew, William J. Curatolo, Dwayne T. Friesen, Michael Jon Gumkowski, Douglas A. Lorenz, James A. S. Nightingale, Roger B. Ruggeri, Ravi M. Shanker
  • Publication number: 20060247272
    Abstract: 4-Amino substituted-2-substituted-1,2,3,4-tetrahydroquinoline compounds, pharmaceutical compositions containing such compounds and the use of such compounds to elevate certain plasma lipid levels, including high density lipoprotein-cholesterol and to lower certain other plasma lipid levels, such as LDL-cholesterol and triglycerides and accordingly to treat diseases which are exacerbated by low levels of HDL cholesterol and/or high levels of LDL-cholesterol and triglycerides, such as atherosclerosis and cardiovascular diseases in some mammals, including humans.
    Type: Application
    Filed: June 16, 2006
    Publication date: November 2, 2006
    Inventors: Roger Ruggeri, George Magnus-Aryitey, Ravi Shanker, Douglas Lorenz, Cheryl Garr
  • Patent number: 7115279
    Abstract: A pharmaceutical composition comprises a solid amorphous dispersion of a cholesteryl ester transfer protein inhibitor and a concentration-enhancing polymer.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: October 3, 2006
    Inventors: William J. Curatolo, Dwayne T. Friesen, Michael J. Gumkowski, Douglas A. Lorenz, James A. S. Nightingale, Roger B. Ruggeri, Ravi M. Shanker
  • Publication number: 20060216351
    Abstract: In one aspect, pharmaceutical compositions comprising dispersions of an acid-sensitive drug and a neutral dispersion polymer are disclosed. The acid-sensitive drug has improved chemical stability relative to dispersions of the drug and acidic polymers. In another aspect, pharmaceutical compositions of low-solubility drugs and amphiphilic, hydroxy-functional vinyl copolymers are disclosed.
    Type: Application
    Filed: May 16, 2006
    Publication date: September 28, 2006
    Inventors: Dwayne Friesen, Michael Gumkowski, Rodney Ketner, Douglas Lorenz, James Nightingale, Ravi Shanker, James West
  • Publication number: 20060211654
    Abstract: A pharmaceutical composition comprises a solid amorphous dispersion of a cholesteryl ester transfer protein inhibitor and a concentration-enhancing polymer.
    Type: Application
    Filed: June 2, 2006
    Publication date: September 21, 2006
    Inventors: William Curatolo, Dwayne Friesen, Michael Gumkowski, Douglas Lorenz, James Nightingale, Roger Ruggeri, Ravi Shanker
  • Publication number: 20060063803
    Abstract: 4-Amino substituted-2-substituted-1,2,3,4-tetrahydroquinoline compounds, pharmaceutical compositions containing such compounds and the use of such compounds to elevate certain plasma lipid levels, including high density lipoprotein-cholesterol and to lower certain other plasma lipid levels, such as LDL-cholesterol and triglycerides and accordingly to treat diseases which are exacerbated by low levels of HDL cholesterol and/or high levels of LDL-cholesterol and triglycerides, such as atherosclerosis and cardiovascular diseases in some mammals, including humans.
    Type: Application
    Filed: July 25, 2005
    Publication date: March 23, 2006
    Inventors: Roger Ruggeri, George Magnus-Aryitey, Ravi Shanker, Douglas Lorenz, Cheryl Garr
  • Publication number: 20050129772
    Abstract: The present invention relates to pharmaceutical compositions comprising amorphous (4R)—N-allyl-3-{(2S,3S)-2-hydroxy-3-[(3-hydroxy-2-methylbenzoyl)amino]-4-phenylbutanoyl}-5,5-dimethyl-1,3-thiazolidine-4-carboxamide, or a pharmaceutically acceptable salt or solvate thereof, their methods of preparation, their use in inhibiting the HIV protease enzyme, and their use in treating HIV-infected mammals, such as humans.
    Type: Application
    Filed: December 8, 2004
    Publication date: June 16, 2005
    Inventors: Scott Smith, Dwayne Friesen, Douglas Lorenz, David Lyon, Rodney Ketner, James West
  • Publication number: 20050032880
    Abstract: Forming amorphous atorvastatin comprises the steps of dissolving atorvastatin in a hydroxylic solvent, followed by rapidly evaporating the solvent. In another aspect, a composition comprises particles of amorphous atorvastatin and a core.
    Type: Application
    Filed: April 20, 2004
    Publication date: February 10, 2005
    Inventors: Douglas Lorenz, Kenneth Waterman
  • Publication number: 20040197398
    Abstract: A dosage form comprises (1) a solid amorphous dispersion comprising a cholesterol ester transfer protein inhibitor and an acidic concentration-enhancing polymer and (2) an HMG-CoA reductase inhibitor. The solid amorphous dispersion and the HMG-CoA reductase inhibitor are combined in the dosage form so that the solid amorphous dispersion and the HMG-CoA reductase inhibitor are substantially separate from one another in the dosage form.
    Type: Application
    Filed: December 18, 2003
    Publication date: October 7, 2004
    Applicant: Pfizer Inc.
    Inventors: Dwayne T. Friesen, David K. Lyon, Douglas A. Lorenz, Bruno C. Hancock, Timothy J. McDermott, Ravi M. Shanker
  • Publication number: 20040185102
    Abstract: A dosage form comprises (1) a solid amorphous dispersion comprising a cholesteryl ester transfer protein inhibitor and a neutral or neutralized acidic polymer and (2) an HMG-CoA reductase inhibitor. The dosage form provides improved chemical stability of the HMG-CoA reductase inhibitor.
    Type: Application
    Filed: December 18, 2003
    Publication date: September 23, 2004
    Applicant: Pfizer Inc
    Inventors: Dwayne T. Friesen, David K. Lyon, Douglas A. Lorenz, Rodney J. Ketner, Bruno C. Hancock, Timothy J. McDermott, Ravi M. Shanker
  • Publication number: 20030186952
    Abstract: A pharmaceutical composition comprises a solid amorphous dispersion of a cholesteryl ester transfer protein inhibitor and a concentration-enhancing polymer.
    Type: Application
    Filed: February 1, 2002
    Publication date: October 2, 2003
    Inventors: Marshall D. Crew, William J. Curatolo, Dwayne T. Friesen, Michael Jon Gumkowski, Douglas A. Lorenz, James A. S. Nightingale, Roger B. Ruggeri, Ravi M. Shanker
  • Publication number: 20030091643
    Abstract: In one aspect, pharmaceutical compositions comprising dispersions of an acid-sensitive drug and a neutral dispersion polymer are disclosed. The acid-sensitive drug has improved chemical stability relative to dispersions of the drug and acidic polymers. In another aspect, pharmaceutical compositions of low-solubility drugs and amphiphilic, hydroxy-functional vinyl copolymers are disclosed.
    Type: Application
    Filed: June 18, 2002
    Publication date: May 15, 2003
    Inventors: Dwayne T. Friesen, Michael J. Gumkowski, Rodney J. Ketner, Douglas A. Lorenz, James A. S. Nightingale, Ravi M. Shanker, James B. West
  • Publication number: 20020103225
    Abstract: A pharmaceutical composition comprises a solid amorphous dispersion of a cholesteryl ester transfer protein inhibitor and a concentration-enhancing polymer.
    Type: Application
    Filed: July 30, 2001
    Publication date: August 1, 2002
    Inventors: William J. Curatolo, Dwayne T. Friesen, Michael J. Gumkowski, Douglas A. Lorenz, James A. S. Nightingale, Roger B. Ruggeri, Ravi M. Shanker
  • Publication number: 20020006443
    Abstract: A drug in a solubility-improved form is combined with a concentration-enhancing polymer in a sufficient amount so that the combination provides substantially enhanced drug concentration in a use environment relative to a control comprising the same amount of the same solubility-improved form of drug without the concentration-enhancing polymer.
    Type: Application
    Filed: December 20, 2000
    Publication date: January 17, 2002
    Inventors: William J. Curatolo, Ravi M. Shanker, walter C. Babcock, Dwayne T. Friesen, James A.S. Nightingale, Douglas A. Lorenz
  • Publication number: 20010053791
    Abstract: Pharmaceutical compositions of a particularly effective sparingly soluble glycogen phosphorylase inhibitor are disclosed, as well as methods of making such compositions and dosage forms from such compositions.
    Type: Application
    Filed: March 14, 2001
    Publication date: December 20, 2001
    Inventors: Walter C. Babcock, Marshall D. Crew, Dwayne T. Friesen, Bruno C. Hancock, Douglas A. Lorenz, Chris Macri, James A.S. Nightingale, Ravi M. Shanker
  • Publication number: 20010053778
    Abstract: Pharmaceutical compositions comprise a glycogen phosphorylase inhibitor and at least one concentration-enhancing polymer. The composition may be a simple physical mixture of glycogen phosphorylase inhibitor and concentration-enhancing polymer or a dispersion of glycogen phosphorylase inhibitor and polymer.
    Type: Application
    Filed: March 14, 2001
    Publication date: December 20, 2001
    Inventors: Dennis J. Hoover, Ravi M. Shanker, James A.S. Nightingale, Dwayne T. Friesen, Douglas A. Lorenz
  • Patent number: 5288916
    Abstract: There is disclosed a method of separating enantiomers of 4-(3',4'-dichlorophenyl)-3,4-dihydro-1(2H)-naphthalenone comprising contacting the same with a homogeneous or nonhomogeneous liquid mixture of solvent and water, the mixture containing substantially pure and unsupported gamma-cyclodextrin or its derivatives. Also disclosed are methods of further enantiomerically enriching solid mixtures obtained from the enantiomer separation method and further extracting one enantiomer by solvent extraction of the solid mixtures obtained.
    Type: Grant
    Filed: March 25, 1993
    Date of Patent: February 22, 1994
    Assignee: Bend Research, Inc.
    Inventors: Douglas A. Lorenz, Daniel J. Brose