Patents Assigned to Max-Planck-Gesellschaft zur Foerderung der Wissenschafen e.V.
  • Graphene nanoribbons with controlled modifications
    Patent number: 9676755
    Abstract: The present invention relates to a graphene nanoribbon, comprising a repeating unit which comprises at least one modification, wherein the modification is selected from a heteroatomic substitution, a vacancy, a sp3 hybridization, a Stone-Wales defect, an inverse Stone-Wales defect, a hexagonal sp2 hybridized carbon network ring size modification, and any combination thereof.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: June 13, 2017
    Assignees: BASF SE, EMPA-EIDGENOESSISCHE MATERIALPRUEFUNGS-UND FORSCHUNGSANSTALT, MAX-PLANCK-GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFEN E.V.
    Inventors: Roman Fasel, Pascal Ruffieux, Klaus Muellen, Jinming Cai, Xinliang Feng, Reinhard Berger
  • Cross-linkers for hydrogels, hydrogels including these cross-linkers and applications thereof
    Patent number: 9644076
    Abstract: The present invention relates to novel cross-linkers for hydrogels, in particular for hyaluronan hydrogels, corresponding hydrogels including said cross-linkers and various applications thereof. The cross linker of the invention is a bi- or multifunctional cross-linker comprising or consisting of an aromatic or heteroaromatic ring system with 3-6 C atoms which is coupled via functional groups on at least 2 ring positions with at least 2 terminal groups capable to form a covalent bond with thiol or amino groups, in particular with thiol groups in a thiol-en reaction. The cross-linker may be charged or uncharged. In a specific embodiment, the terminal groups are coupled to carboxy groups of the aromatic or heteroaromatic ring system via an ester or amide bond.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: May 9, 2017
    Assignee: Max-Planck-Gesellschaft zur Foerderung der Wissenschafen e. V.
    Inventors: Heike Boehm, Valentin Hagel, Tabea Mundinger, Isabell Nuss, Seraphine Valeska Wegner, Sabine Laschat, Markus Manfred Mateescu
  • Triangulene oligomers and polymers and their use as hole conducting material
    Patent number: 9385326
    Abstract: The present invention related to thermally stable p-conducting oligomers and polymers of triangulene of formula (I) and their use in dye sensitized solar cells.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: July 5, 2016
    Assignees: BASF SE, Max-Planck-Gesellschaft zur Foerderung der Wissenschafen e.V.
    Inventors: Henrike Wonneberger, Ingmar Bruder, Robert Send, Florian Schluetter, Klaus Muellen, Milan Kivala
  • Transversely discharge-pumped gas laser
    Patent number: 5303254
    Abstract: A transversely discharge-pumped gas laser has a discharge vessel, which encloses a laser gas and at least one pair of oppositely disposed elongated discharge electrodes which extend in a predetermined longitudinal direction and are separated by a discharge region, in which laser radiation is generated which propagates along a beam path. The beam path passes once or a plurality of times through the discharge region. The direction of the beam path of the sole pass or some or all of the multiple passes forms an angle different from zero with the longitudinal direction of the elctrodes. The angle or angles are chosen such that the quality, homogeneity of intensity profile, gain and output energy of a resulting output beam are well balanced.
    Type: Grant
    Filed: April 10, 1992
    Date of Patent: April 12, 1994
    Assignee: Max-Planck-Gesellschaft zur Foerderung der Wissenschafen e.V.
    Inventor: Sandor Szatmari