Patents by Inventor Sirpa Liukko-Sipi

Sirpa Liukko-Sipi 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: 20040014726
    Abstract: The present invention is directed to a method for the preparation of a pharmaceutical composition having osteoclast formation inhibiting or suppressing activity, characterized in that, as the active agent, a compound of the formula (I) is used, in which formula Q1 is hydrogen, hydroxyl, halogen, amino —NH2, or —OR′, wherein R′ is C1-C4-alkyl or acyl, Q2 is straight or branched alkyl, hydroxyalkyl or aminoalkyl, or a corresponding unsaturated group optionally substituted at the hydroxy or amino group, or a unsubstituted or substituted, saturated or unsaturated cycloalkyl, which can be bound to the methylene carbon over a straight or branched alkylene group, or is the group (a) wherein Y is a saturated or unsaturated heterocyclic group, or a carbocyclic aromatic group, X is a bond, O, S or NR3, wherein R3 is hydrogen or a protecting group, especially lower alkyl, acyl, aryl or arylalkyl, and n is an integer 0 to 6, R1 and R2 are independently hydrogen or C1-C4-alkyl, or it is halogen, an
    Type: Application
    Filed: April 25, 2003
    Publication date: January 22, 2004
    Inventors: Thua Osterman, Ritva Hannuniemi, Teuvo Hentunen, Sirpa Liukko-Sipi, Hannu Nikander, Katri Selander, Raija Sellman, Kalervo Vaananen
  • Patent number: 6083938
    Abstract: The present invention relates to certain optionally ring substituted pyridinylaminomethylidene bisophosphonic acid tetralkyl esters (I) and their use for the treatment of bone diseases, such as osteolytic bone diseases due to malignancy, Paget's disease and primary and secondary osteoporosis.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: July 4, 2000
    Assignee: Leiras Oy
    Inventors: Marjaana Heikkila-Hoikka, Hannu Nikander, Ritva Hannuniemi, Leena Lauren, Terttu Kleimola, Sirpa Liukko-Sipi, Kalervo Vaananen, Raija Sellman
  • Patent number: 5866556
    Abstract: The present invention relates to certain optionally ring substituted pyridinylaminomethylidene bisphosphonic acid tetralkyl esters (I) and their use for the treatment of bone diseases, such as osteolytic bone diseases due to malignancy, Paget's disease and primary and secondary osteoporosis.
    Type: Grant
    Filed: December 6, 1996
    Date of Patent: February 2, 1999
    Assignee: Leiras Oy
    Inventors: Marjaana Heikkila-Hoikka, Hannu Nikander, Ritva Hannuniemi, Leena Lauren, Terttu Kleimola, Sirpa Liukko-Sipi, Kalervo Vaananen, Raija Sellman