Patents by Inventor Mika Timmerbacka

Mika Timmerbacka 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: 6180789
    Abstract: The present invention relates to a method for preparing optically active enantiomers of [[4-(1,4,5,6-tetrahydro-4-methyl-6-oxo-3-pyridazinyl)phenyl]-hydrazono]propanedinitrile (I), particularly (−) enantiomer of (I). Furthermore, the invention relates to a novel crystalline polymorphic form of the (−) enantiomer.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: January 30, 2001
    Assignee: Orion Corporation
    Inventors: Mika Timmerbacka, Jorma Lehtonen, Veli Pekka Tanninen, Esa Muttonen, Jukka Kaukonen, Riikka Hyppöl{umlaut over (a)}, Reijo B{umlaut over (a)}ckström