Patents by Inventor Axel Thiefes

Axel Thiefes 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).

  • CHROMATOGRAPHIC MATERIAL AND METHOD OF PRODUCING SAME
    Publication number: 20240033711
    Abstract: The present invention relates to a chromatographic material comprising a polymer network material-based self-supporting bi-continuous separation matrix for adsorptive material separation in liquid media, and a method of producing the chromatographic material comprising a polymer network material-based self-supporting bi-continuous separation matrix.
    Type: Application
    Filed: December 21, 2021
    Publication date: February 1, 2024
    Inventors: Adrian Ley, Rebecca Petersen, Florian Taft, Patrick Adametz, Axel Thiefes, Kathrin Toeppner, Stella Weber, Nils Gehrmann, Franziska Hagemann, Volkmar Thom
  • Integrity and functionality test for adsorptive depth filter layers with an inorganic layered double hydroxide
    Patent number: 10386285
    Abstract: The present invention relates to a method for determining the functionality and integrity of depth filter sheets and depth filter sheet systems comprising inorganic layered double hydroxide for contaminant removal in biotechnological processes.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: August 20, 2019
    Assignee: Sartorius Stedim Biotech GMBH
    Inventors: Rebecca Petersen, Axel Thiefes, Katrin Köhler, Wolfgang Demmer, Sven Dankenbrink
  • Integrity and Functionality Test for Adsorptive Depth Filter Layers with an Inorganic Layered Double Hydroxide
    Publication number: 20160274019
    Abstract: The present invention relates to a method for determining the functionality and integrity of depth filter sheets and depth filter sheet systems comprising inorganic layered double hydroxide for contaminant removal in biotechnological processes.
    Type: Application
    Filed: September 3, 2014
    Publication date: September 22, 2016
    Inventors: Rebecca Petersen, Axel Thiefes, Katrin Köhler, Wolfgang Demmer, Sven Dankenbrink
  • Depth filter layer with inorganic layer double hydroxide
    Patent number: 9333481
    Abstract: The present invention relates to a depth filter layer with inorganic layer double hydroxide, a method for production thereof, a filtration device containing this, a method for the separation of at least one contaminant from at least one target product in a liquid medium by means of at least one upstream depth filter layer and the use of the depth filter layer for removal of contaminants. The depth filter layer selectively retains contaminants such as nucleic acids, while target proteins of biotechnological processes are transmissible into the filtrate.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: May 10, 2016
    Assignee: SARTORIUS STEDIM BIOTECH GMBH
    Inventors: Katrin Koehler, Axel Thiefes, Klaus Tarrach
  • Method for qualifying a non-particulate ion-exchanger adsorber
    Patent number: 8969094
    Abstract: The present invention relates to a method for the validation of a non-particulate ion exchange adsorber and a kit for the validation of a non-particulate ion exchange adsorber.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: March 3, 2015
    Assignee: Sartorius Stedim Biotech GmbH
    Inventors: Wolfgang Demmer, Rene Faber, Hans-Heinrich Hoerl, Axel Thiefes
  • METHOD FOR QUALIFYING A NON-PARTICULATE ION-EXCHANGER ADSORBER
    Publication number: 20120276652
    Abstract: The present invention relates to a method for the validation of a non-particulate ion exchange adsorber and a kit for the validation of a non-particulate ion exchange adsorber.
    Type: Application
    Filed: November 10, 2010
    Publication date: November 1, 2012
    Applicant: SARTORIUS STEDIM BIOTECH GMBH
    Inventors: Wolfgang Demmer, Rene Faber, Hans-Heinrich Hoerl, Axel Thiefes
  • METHOD FOR QUALIFYING A NON-PARTICULATE ADSORBENT BY MEANS OF A SECONDARY REACTION
    Publication number: 20120264221
    Abstract: The present invention relates to a method for the validation of a non-particulate adsorbent by secondary reaction and a kit for the validation of a non-particulate adsorbent by secondary reaction.
    Type: Application
    Filed: November 10, 2010
    Publication date: October 18, 2012
    Applicant: SARTORIUS STEDIM BIOTECH GMBH
    Inventors: Wolfgang Demmer, Rene Faber, Hans-Heinrich Hoerl, Axel Thiefes
  • DEPTH FILTER LAYER WITH INORGANIC LAYER DOUBLE HYDROXIDE
    Publication number: 20110207196
    Abstract: The present invention relates to a depth filter layer with inorganic layer double hydroxide, a method for production thereof, a filtration device containing this, a method for the separation of at least one contaminant from at least one target product in a liquid medium by means of at least one upstream depth filter layer and the use of the depth filter layer for removal of contaminants. The depth filter layer selectively retains contaminants such as nucleic acids, while target proteins of biotechnological processes are transmissible into the filtrate.
    Type: Application
    Filed: August 11, 2009
    Publication date: August 25, 2011
    Applicant: SARTORIUS STEDIM IOTECH GMBH
    Inventors: Katrin Koehler, Axel Thiefes, Klaus Tarrach