Patents by Inventor Juho Jumppanen

Juho Jumppanen 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).

  • Process for the continuous production of high purity L-ribose
    Patent number: 6140498
    Abstract: A process of preparing a L-ribose fraction having greater than 97% purity starting from an aqueous solution of L-arabinose is provided by utilizing an epimerization reaction conducted in the presence of a Mo compound and eluting the product formed by said epimerization reaction through a separation zone containing a strong acid cation exchange resin. A process of crystallized said L-ribose fraction under conditions effective to form monohydrate L-ribose crystals is also disclosed.
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: October 31, 2000
    Assignee: Xyrofin Oy
    Inventors: Juho Jumppanen, Juha Nurmi, Ossi Pastinen