Patents by Inventor Frith Loth

Frith Loth 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).

  • Dressing for wounds and the method for manufacturing thereof
    Patent number: 4615880
    Abstract: An absorbing dressing for wounds consists of spherical particles of regenerated cellulose of the size 0.05-0.5 mm and a macroporous structure characterized by the cyclohexane regain of the dry material at least 0.2 ml/g. The dressing is prepared from the regenerated cellulose swollen with water by replacement with organic solvents and the subsequent drying of the product swollen with the said solvent and impregnated with a therapeutically active compound.
    Type: Grant
    Filed: April 12, 1984
    Date of Patent: October 7, 1986
    Assignees: Ceskoslovenska akademie ved of Prague, Akademie der Wissenschaften der DDR
    Inventors: Frith Loth, Horst Dautzenberg, Jiri Stamberg, Jan Peska, Dieter Bertram, Herbert Lettau