Patents by Inventor Dittmar Nerger

Dittmar Nerger 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).

  • Publication number: 20110201550
    Abstract: The present invention relates to the combination of aminophenylamidine derivatives with cyclic depsipeptides, to products comprising this combination, and to the use of these active substances in combination for controlling endoparasites in humans and in animals.
    Type: Application
    Filed: June 16, 2009
    Publication date: August 18, 2011
    Applicant: Bayer Animal Health GMBH
    Inventors: Achim Harder, Dittmar Nerger, Thomas Bach, Venkata-Rangarao Kanikanti, Richard Kujanek
  • Patent number: 5273952
    Abstract: A dye acceptor element for thermosublimation printing comprising a support and a dye acceptor layer consisting essentially of polycarbonate arranged on the support, the polycarbonate containing 30 to 95% by weight aromatic carbonate structural units corresponding to formula I[--O--diphen--O--CO--] (I)in which diphen is the residue of a diphenol containing 6 to 30 and preferably 12 to 24 carbon atoms, and 70 to 5% by weight aliphatic polyether carbonate structural units corresponding to formula II[--O--polyether--O--CO--] (II)in which polyether is the residue of an aliphatic polyether diol having a molecular weight Mn of 600 to 20,000, is distinguished by high color density and a minimal tendency towards adhesion.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: December 28, 1993
    Assignee: Agfa Gevaert AG
    Inventors: Rolf Wehrmann, Herbert Hugl, Dittmar Nerger
  • Patent number: 5221727
    Abstract: The new aromatic polyethers containing ester groups, which are distinguished by high dimensional stability, may be used for the production of all kinds of moulded products as well as for the preparation of block copolymers of aromatic polyether segments and segments of other thermoplastic polymers.
    Type: Grant
    Filed: February 25, 1991
    Date of Patent: June 22, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Robert Kumpf, Rolf Wehrmann, Harald Pielartzik, Dittmar Nerger
  • Patent number: 5140056
    Abstract: The invention relates to the use of salts of sulfosuccinic acid esters as internal antistatic agents, take-off and winding aids for transparent cast films of polycarbonates, to a process for the production of cast polycarbonate films and to the cast polycarbonate films themselves containing salts of sulfosuccinic acids and also to the use of the new cast polycarbonate films in the electrical field and optical field.
    Type: Grant
    Filed: February 21, 1990
    Date of Patent: August 18, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Volker Wiskamp, Dittmar Nerger, Bernhard Schulte, Werner Waldenrath
  • Patent number: 5124128
    Abstract: The present invention relates to a process for the production of porous, and particularly macroporous, membranes. The membranes produced by the process are highly absorbent and can therefore be employed, as supporting matrices for test strips. These test strips can be used for the detection of substances to be analyzed in a liquid.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: June 23, 1992
    Assignee: Miles Inc.
    Inventors: Karlheinz Hildenbrand, Dittmar Nerger, Klaus Wehling
  • Patent number: 4973414
    Abstract: Monofunctional polyethers having hydroxyl groups contain as built-in terminal groups or monomers(a) 1 to 30% by weight of one or more C.sub.4 - to C.sub.24 -alkylmonophenols,(b) 1 to 30% by weight of one or more C.sub.8 - to C.sub.24 -monoalkanols,(c) 1 to 30% by weight of one or more C.sub.10 - to C.sub.20 -1,2-epoxyalkanes and(d) 45 to 80% by weight of propylene oxide or a lower alkylene oxide mixture consisting mainly of propylene oxidethe sum of components (a) to (d) adding up to 100% by weight, and have average molecular weights of 600 to 2,500.These polyethers are prepared by anionic epoxide polymerization and used as lubricants and components of lubricants.
    Type: Grant
    Filed: May 17, 1988
    Date of Patent: November 27, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Dittmar Nerger, Karl-Heinz Hentschel, Christian Rasp, Pramod Gupta, Siegfried Kussi
  • Patent number: 4968430
    Abstract: Composite membranes of a macroporous filler-containing membrane of at least two incompatible polymers and a pore-free polyurethane membrane applied there to exhibit an improved action in the removal of benzenes optionally suhstituted by lower alkyl radicals, hydroxyl, chlorine or bromine from their mixtures with aliphatic and/or cycloaliphatic hydrocarbons, alcohols, ethers, ketones and/or carboxylic acid esters or from effluent.
    Type: Grant
    Filed: March 22, 1989
    Date of Patent: November 6, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karlheinz Hildenbrand, Rolf Dhein, Willi Meister, Dittmar Nerger