Patents by Inventor Derek Von Langen

Derek Von Langen 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: 7622449
    Abstract: This invention provides cholesterol absorption inhibitors of Formula I: and the pharmaceutically acceptable salts and esters thereof. The compounds are useful for lowering plasma cholesterol levels, particularly LDL cholesterol, and for treating and preventing atherosclerosis and atherosclerotic disease events.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: November 24, 2009
    Assignee: Merck & Co., Inc.
    Inventors: Mark T. Goulet, Feroze Ujjainwalla, Anthony Ogawa, Derek Von Langen
  • Publication number: 20060122242
    Abstract: A class of 2-aryloxy-2-arylalkanoic acids comprises compounds that are potent agonists of PPAR alpha and/or gamma, and are therefore useful in the treatment, control or prevention of non-insulin dependent diabetes mellitus (NIDDM), hyperglycemia, dyslipidemia, hyperlipidemia, hypercholesterolemia, hypertriglyceridemia, atherosclerosis, obesity, vascular restenosis, inflammation, and other PPAR alpha and/or gamma mediated diseases, disorders and conditions.
    Type: Application
    Filed: January 18, 2006
    Publication date: June 8, 2006
    Inventors: Alan Adams, A. Jones, Joel Berger, James Dropinski, Alexander Elbrecht, Kun Liu, Karen MacNaul, Guo-Qiang Shi, Derek Von Langen, Gaochao Zhou
  • Patent number: 6515015
    Abstract: The instant invention is concerned with aryl and heteroaryl acetic acid and oxyacetic acid compounds, which are useful as antidiabetic compounds. Compositions and methods for their use in the treatment of diabetes and related diseases and for lowering triglyceride levels are disclosed.
    Type: Grant
    Filed: October 24, 2000
    Date of Patent: February 4, 2003
    Assignee: Merck & Co. Inc.
    Inventors: Alan Adams, Derek Von Langen, Hiroo Koyama, Richard Tolman
  • Patent number: 6204273
    Abstract: Compounds of the Formula I are inhibitors of the 5&agr;-reductase 1 isozyme, and are useful alone, or in combination with a 5&agr;-reductase 2 inhibitor, for the treatment of androgenic sensitive disorders such as acne vulgaris, seborrhea, female hirsutism, male pattern baldness, and benign prostatic hyperplasia.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: March 20, 2001
    Assignee: Merck & Co., Inc.
    Inventors: Philippe L. Durette, William K. Hagmann, Thomas J. Lanza, Jr., Soumya P. Sahoo, Gary H. Rasmusson, Richard L. Tolman, Derek Von Langen
  • Patent number: 6160000
    Abstract: The instant invention is concerned with aryl and heteroaryl acetic acid and oxyacetic acid compounds, which are useful antidiabetic compounds. Compositions and methods for the use of the compounds in the treatment of diabetes and related diseases and for lowering triglyceride levels are also disclosed.
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: December 12, 2000
    Assignee: Merck & Co., Inc.
    Inventors: Alan Adams, Derek Von Langen, Hiroo Koyama, Richard Tolman
  • Patent number: 6090836
    Abstract: The instant invention is concerned with acetylphenols which are useful as antiobesity and antidiabetic compounds. Compositions and methods for the use of the compounds in the treatment of diabetes and obesity and for lowering or modulating triglyceride levels and cholesterol levels or raising high density lipoprotein levels or for increasing gut motility or for treating atherosclerosis are also disclosed.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: July 18, 2000
    Assignee: Merck & Co., Inc.
    Inventors: Alan D. Adams, Joel P. Berger, Gregory D. Berger, Kenneth J. Fitch, Donald W. Graham, Anthony B. Jones, Derek von Langen, Mark D. Leibowitz, David E. Moller, Arthur A. Patchett, Conrad Santini, Soumya P. Sahoo, Richard L. Tolman, Richard B. Toupence, Thomas F. Walsh
  • Patent number: 6090839
    Abstract: The instant invention is concerned with aryl and heteroaryl oxyacetic acid type compounds which are useful antidiabetic compounds. Compositions and methods for the use of the compounds in the treatment of diabetes and related diseases and for lowering triglyceride levels are also disclosed.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: July 18, 2000
    Assignee: Merck & Co., Inc.
    Inventors: Alan D. Adams, Derek Von Langen, Richard L. Tolman, Hiroo Koyama
  • Patent number: 6048869
    Abstract: The novel compounds of the present invention are those of structural formula I: ##STR1## or a pharmaceutically acceptable salt, ester, or stereoisomer thereof, which are inhibitors of 5.alpha.-reductase. The compounds of formula I are useful in the oral, systemic, parenteral or topical treatment of hyperandrogenic conditions. Methods of using the compounds of formula I for the treatment of hyperandrogenic conditions such as acne vulgaris, seborrhea, androgenic alopecia, male pattern baldness, female hirsutism, benign prostatic hyperplasia, and the prevention and treatment of prostatic carcinoma, as well as the treatment of prostatitis the treatment of sweat-related conditions such as apocrine gland sweating, hyperhidrosis, and hydradenitis suppurativa, the treatment of polycystic ovary syndrome, the prevention and treatment of bone loss and related diseases, and the prevention and treatment of premature labor are provided, as well as pharmaceutical compositions for the compounds of formula I.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: April 11, 2000
    Assignee: Merck & Co., Inc.
    Inventors: Derek Von Langen, Susan D. Aster, Donald W. Graham
  • Patent number: 5910497
    Abstract: Compounds of the Formula I ##STR1## are inhibitors of the 5.alpha.-reductase 1 isozyme, and are useful alone, or in combination with a 5.alpha.-reductase 2 inhibitor, for the treatment of androgenic sensitive disorders such as acne vulgaris, seborrhea, female hirsutism, male pattern baldness, and benign prostatic hyperplasia.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: June 8, 1999
    Assignee: Merck & Co., Inc.
    Inventors: Philippe L. Durette, William K. Hagmann, Thomas J. Lanza, Jr., Soumya P. Sahoo, Gary H. Rasmusson, Richard L. Tolman, Derek Von Langen
  • Patent number: 5739137
    Abstract: Compounds of formula (I) are inhibitors of the 5.alpha.-reductase 1 isozyme, and are useful alone, or in combination with a 5.alpha.-reductase 2 inhibitor, for the treatment of androgenic sensitive disorders such as acne vulgaris, seborrhea, female hirsutism, male pattern baldness, and benign prostatic hyperplasia.
    Type: Grant
    Filed: February 28, 1996
    Date of Patent: April 14, 1998
    Assignee: Merck & Co., Inc.
    Inventors: Philippe L. Durette, William K. Hagmann, Thomas J. Lanza, Jr., Soumya P. Sahoo, Gary H. Rasmusson, Richard L. Tolman, Derek Von Langen
  • Patent number: 5719158
    Abstract: Compounds of the Formula I ##STR1## are inhibitors of the 5.alpha.-reductase 1 isozyme, and are useful alone, or in combination with a 5.alpha.-reductase 2 inhibitor, for the treatment of androgenic sensitive disorders such as acne vulgaris, seborrhea, female hirsutism, male pattern baldness, and benign prostatic hyperplasia.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: February 17, 1998
    Assignee: Merck & Co., Inc.
    Inventors: Philippe L. Durette, William K. Hagmann, Thomas J. Lanza, Jr., Soumya P. Sahoo, Gary H. Rasmusson, Richard L. Tolman, Derek von Langen
  • Patent number: 5663175
    Abstract: Certain prodrugs such as ##STR1## are useful in the inhibition of herpes virus thymidine kinase, the prevention or treatment of recurrent infection by herpes virus, either as compounds, pharmaceutically acceptable salts, pharmaceutical composition ingredients, whether or not in combination with other antivirals, immunomodulators, antibiotics or vaccines. Methods of preventing or treating recurrent infection by herpes virus are also described.
    Type: Grant
    Filed: December 9, 1994
    Date of Patent: September 2, 1997
    Assignee: Merck & Co. Inc.
    Inventors: Richard L. Tolman, John D. Karkas, Derek Von Langen, Malcolm MacCoss
  • Patent number: 5516779
    Abstract: Compounds of the formula ##STR1## are inhibitors of 5 .alpha.-reductase and are useful alone or in combination with other active agents for the treatment of hyperandrogenic disorders such as acne vulgaris, seborrhea, female hirsutism, male pattern baldness, and benign prostatic hyperplasia.
    Type: Grant
    Filed: June 8, 1994
    Date of Patent: May 14, 1996
    Assignee: Merck & Co., Inc.
    Inventors: Derek Von Langen, Donald W. Graham, Richard L. Tolman
  • Patent number: 5438061
    Abstract: Compounds of the formula I ##STR1## wherein R.sub.1 hydrogen or methyl; R.sub.2 is methyl; R.sub.3 hydrogen, Alk-R.sub.4, X-Alk, C.sub.1-6 -X-Alk, XCO-Alk, CN, CO-Alk, CO-Ar, CO-O-Alk, CO-NH-Alk, CO-NH-Ar, CO-NH-Het and CO-N(Alk).sub.2 ; Alk is C.sub.1-12 straight or branched alkyl; Ar is phenyl, Het is piperidinyl, piperizinyl, pyrrolidinyl, pyrrolyl, furanyl or thienyl and X is O, N or S. Such compounds are useful in the treatment of pathologic conditions that benefit from blockade of isozymes of 5.alpha.-reductase.
    Type: Grant
    Filed: July 16, 1993
    Date of Patent: August 1, 1995
    Assignee: Merck & Co., Inc.
    Inventors: Jeffrey P. Bergman, Donald W. Graham, Gary H. Rasmusson, Richard L. Tolman, Derek Von Langen