Patents by Inventor Norbert Iffland

Norbert Iffland 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 and plant for the production of spherical alginate pellets
    Patent number: 5472648
    Abstract: Proposed is a process for the production of spherical alginate pellets from drops of alginate solution delivered by a nozzle, the drops being solidified by dropping them into an ionic solution and subsequently removing the pellets and rinsing them. The alginate solution is converted into drops by vibrational stimuli, and the drops subsequently allowed to remain substantially free in the ionic solution until the required degree of solidification has been reached.
    Type: Grant
    Filed: June 13, 1994
    Date of Patent: December 5, 1995
    Assignee: Nukem GmbH
    Inventors: Gerhard Alisch, Edwin Brauneis, Bernd Pirstadt, Norbert Iffland, Egbert Brandau
  • Process for solidifying and eliminating radioactive borate containing liquids
    Patent number: 4122028
    Abstract: There is provided a process for the solidification of radioactive boron containing aqueous solutions and suspensions containing more than 5% boric acid or a borate and more than 5% solids by addition of suitable additions in the correct sequence to form solid, transportable and storable blocks by using as the additive first 5 to 30 parts by weight of slaked lime and then 30-80 parts by weight of cement per 100 parts by weight of radioactive solution.
    Type: Grant
    Filed: January 25, 1977
    Date of Patent: October 24, 1978
    Assignee: Nukem Nuklear-Chemie und Metallurgie GmbH
    Inventors: Norbert Iffland, Hans-Jorg Isensee, Gerhard Wagner, Hartmut Witte