Patents by Inventor Karol Michalek

Karol Michalek 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).

  • Compound and method of preparing compound for medical purposes from eggshells
    Patent number: 5045323
    Abstract: Eggshells are utilized after preliminary treatment for medical purposes for treating certain diseases and to compensate for deficiencies of mineral in living tissues, particularly in bone tissues in a form which is acceptable by the body.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: September 3, 1991
    Assignee: Zapadoslovanske hydinaarske zavody statny podnik
    Inventor: Karol Michalek