Patents by Inventor Leonardus Van Der Ploeg

Leonardus Van Der Ploeg 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: 20050171161
    Abstract: The present invention relates to a method of treating or preventing obesity (or suppressing the appetite) in a human patient by antagonizing CB1 receptors and inhibiting the enzyme 11?-HSD1 in an amount that is effective to treat or prevent obesity. Compounds useful in the present invention have an ion channel activity level greater than about 2 ?M.
    Type: Application
    Filed: February 28, 2003
    Publication date: August 4, 2005
    Inventors: Tung Fong, Leonardus Van Der Ploeg
  • Publication number: 20050107411
    Abstract: A neuropeptide Y Y5 antagonist is useful, alone or in conjunction with other agents, for altering circadian rhythmicity and alleviating circadian rhythm disorders and for enhancing and improving the quality of sleep. The present invention further provides for the use of a medicament for carrying out these methods.
    Type: Application
    Filed: December 13, 2002
    Publication date: May 19, 2005
    Inventors: Douglas MacNeil, Lauren Shearman, Leonardus Van Der Ploeg
  • Publication number: 20050034185
    Abstract: Cells and non-human transgenic animals have been engineered to be deficient in the gene encoding the melcanocortin-3 receptor protein (MC-3R). MC-3R deficient transgenic animals have increased fatmass and reduced lean body mass, showing that the MC-3R protein is involved in the regulation of body fat and muscle mass. These MC-3R deficient transgenic animals can be used to select for and test potential modulators of MC-3R. This data allows for methods of screening for MC-3R modulators which effect body weight and associated methods of treating various disorders associated with inappropriate regulation of body weight. The disclosure also relates to a MC-3R/MC-4R double knockout mouse which can be used to select for and test potential modulators (e.g., agonists or antagonists) of MC-3R and/or MC-4R. It is shown that MC-3R serves a non-redundant role, when compared to MC-4R, in the regulation of energy homeostasis.
    Type: Application
    Filed: June 25, 2003
    Publication date: February 10, 2005
    Applicant: Merek & Co., Inc.
    Inventors: Leonardus Van der Ploeg, Howard Chen, Airu Chen
  • Patent number: 6632625
    Abstract: Mutant ob receptors have been made which a) lack a functional first CK-F3 domain; b) lack a functional second CK-F3 domain or c) lack a functional intracellular domain. These receptors may be used in various assays, such as a transactivation assay to identify novel ligands.
    Type: Grant
    Filed: December 2, 1997
    Date of Patent: October 14, 2003
    Assignee: Merck & Co., Inc.
    Inventors: Tung M. Fong, Ruey-Ruey C. Huang, Leonardus Van Der Ploeg
  • Patent number: 5830433
    Abstract: The present invention is directed to ?.sup.35 S!-N-?1(R)-?(1,2-dihydro-1-methanesulfonylspiro?3H-indole-3,4'-piperidin!- 1'-yl)carbonyl!-2-(phenylmethyloxy)ethyl!-2-amino-2-methylpropanamide, and pharmaceutically acceptable salts thereof. This ?.sup.35 S! radioligand is useful in identifying and characterizing cellular receptors which play a role in the activity of growth hormone secretatogogues. In addition, this ?.sup.35 S! radioligand is useful in assays which test compounds for growth hormone secretagogue activity.
    Type: Grant
    Filed: December 17, 1996
    Date of Patent: November 3, 1998
    Assignee: Merck & Co., Inc.
    Inventors: Dennis C. Dean, David G. Melillo, Ravi Nargund, Leonardus Van Der Ploeg, Sheng-Shung Pong, James M. Schaeffer, Roy G. Smith