Patents by Inventor Esko O. Pajunen

Esko O. Pajunen 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).

  • Bisphosphonic acid derivatives and their use
    Patent number: 5200554
    Abstract: The invention relates to novel methylene bisphosphonic acid derivatives carrying a styrene group attached to the methylene carbon. The novel compounds are useful e.g. for functionalizing polymers of styrene type, especially macroporous styrene polymers, by copolymerizing the novel derivative with styrene and optional crosslinking agents. The invention also provides for new crosslinking agents especially suitable for the said purpose.
    Type: Grant
    Filed: January 21, 1992
    Date of Patent: April 6, 1993
    Inventors: Jan-Anders H. Nasman, Osmo Hormi, Esko O. Pajunen, Mats J. Sundell