Patents by Inventor Wendel Wohlleben

Wendel Wohlleben 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).

  • NANOFILTRATION COMPOSITE MEMBRANES COMPRISING SELF-ASSEMBLED SUPRAMOLECULAR SEPARATION LAYER
    Publication number: 20200246761
    Abstract: The present invention is directed to nanofiltration (NF) composite membranes comprising at least one polymeric porous substrate layer (S) and at least one porous selfassembled supramolecular membrane layer (F); a method of preparing such composite membranes; method of separation/filtration/purification of heavy metal cations, inorganic anions, and organic small molecules by applying such composite membranes; as well as filter cartridges and filtration devices comprising said composite membranes.
    Type: Application
    Filed: November 15, 2016
    Publication date: August 6, 2020
    Applicant: BASF SE
    Inventors: Wendel WOHLLEBEN, Karsten SEIDEL, Kai WERLE, Natalia WIDJOJO
  • PHOTONIC CRYSTALS COMPOSED OF POLYMER PARTICLES WITH INTERPARTICULATE INTERACTION
    Publication number: 20110250453
    Abstract: What is described is the use of polymer particles for producing photonic crystals, wherein the polymer particles do not film and have, at their contact points in the photonic crystal, linkage sites which allow linkage of the particles by physical or chemical bonding, without reducing the volume of the interstitial phase by more than 30%.
    Type: Application
    Filed: August 22, 2008
    Publication date: October 13, 2011
    Applicant: BASF SE
    Inventors: Reinhold Leyrer, Wendel Wohlleben
  • PHOTONIC CRYSTALS COMPOSED OF UNCHARGED POLYMER PARTICLES
    Publication number: 20100021697
    Abstract: The use of polymer particles for producing photonic crystals, wherein the polymer particles have a weight-average particle size of greater than 600 nm and a content of ionic groups of less than 0.001 mol, preferably less than 0.0001 mol/1 g of polymer particles and the polymer particles form the lattice structure of the photonic crystal without being embedded into a liquid or solid matrix.
    Type: Application
    Filed: November 5, 2007
    Publication date: January 28, 2010
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Reinhold J. Leyrer, Wendel Wohlleben, Stephan Altmann
  • USE OF COLOURED POLYMER SYSTEMS FOR PACKAGING
    Publication number: 20090098368
    Abstract: A substrate coated with a polymer system, wherein the polymer system reflects electromagnetic radiation (Bragg reflection), the wavelength of the reflection in the case of a strain produced by a mechanical stress is variable and the coated substrate as a whole has such little elasticity that, on elimination of the mechanical stress, the wavelength of the Bragg reflection is changed compared with the starting state.
    Type: Application
    Filed: February 15, 2007
    Publication date: April 16, 2009
    Applicant: BASF SE
    Inventors: Wendel Wohlleben, Reinhold J Leyrer
  • USE OF COLOURED POLYMERIC SYSTEMS FOR MEDICAL OR HYGIENE ARTICLES
    Publication number: 20090012207
    Abstract: Use of colored polymer systems having a color which is changeable in the case of a strain for indicating the stress state of hygiene or medical articles adjacent to the body.
    Type: Application
    Filed: February 13, 2007
    Publication date: January 8, 2009
    Applicant: BASF SE
    Inventors: Reinhold J. Leyrer, Wendel Wohlleben, Stephan Altmann, Thomas Daniel