Patents by Inventor Andreas Bittner

Andreas Bittner 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: 20160351909
    Abstract: According to the invention, a particulate electrode material is provided, which has high energy density, safety and longevity (stability relative to degradation and material fatigue). Furthermore, the electrode material is distinguished both by high electrical and high ionic conductivity and consequently achieves very low resistance values. Furthermore, a method for coating particulate electrode material is provided according to the invention, with which method the electrode material according to the invention can be produced. Finally, uses of the electrode material according to the invention are demonstrated.
    Type: Application
    Filed: November 19, 2013
    Publication date: December 1, 2016
    Inventors: Andreas Bittner, Uwe Guntow, Birke-Elisabeth Olsowski, Jochen Schulz, Manfred Römer, Moritz Milde, Vilija Anfimovaite
  • Publication number: 20160285099
    Abstract: The present invention relates to a lithium accumulator or a combination thereof with a double-layer capacitor which is distinguished by a solid material- or gel electrolyte and a binder made of inorganic-organic hybrid polymer. By means of the new binder concept presented here, it is possible to revolutionise the contacting of the individual components in these accumulators and thus to enable a fundamental improvement in the ion transport. Associated therewith is a new, fast, simple and flexible production method for lithium accumulators which optimises these with respect to safety, stability, environmental friendliness and efficiency.
    Type: Application
    Filed: November 19, 2013
    Publication date: September 29, 2016
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Jochen SCHULZ, Jochen UEBE, Andreas BITTNER, Uwe GUNTOW, Birke-Elisabeth OLSOWSKI
  • Patent number: 5990355
    Abstract: Compounds of the formula (I) and their salts with inorganic and organic acids, ##STR1## in which R.sub.1 is a hydrogen atom or a trimethylsilyl group, R.sub.2, R.sub.3, R.sub.4, and R.sub.5 are, independently of each other, a hydrogen atom, a (C.sub.1 -C.sub.4) alkyl group, a hydroxy-(C.sub.2 -C.sub.3) alkyl group, an alkoxy-(C.sub.2 -C.sub.3) group, an amino-(C.sub.2 -C.sub.3) group, or a 2,3-dihydroxypropyl group, and in which R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are not simultaneously hydrogen atoms, and processes for their preparation and use as hair-coloring agents.
    Type: Grant
    Filed: October 3, 1997
    Date of Patent: November 23, 1999
    Assignee: Hans Schwarzkopf GmbH & Co. KG.
    Inventors: Mustafa Akram, Wolfgang Wolff, Andreas Bittner, Uwe Kobs
  • Patent number: 5961668
    Abstract: Compounds of the formula (I): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently of one another may represent a hydrogen atom, a (C.sub.1-4) alkyl group, a hydroxy (C.sub.2-3) alkyl group, an alkoxy (C.sub.2-3) alkyl group, an amino (C.sub.2-3) alkyl group or a 2,3-dihydroxypropyl group and R.sub.5 and R.sub.6 independently of one another may represent hydrogen or a (C.sub.1-4) alkyl group, are made by reacting 2,4-dinitrohalobenzenes with 4-hydroxymethyl-1,3-dioxolanes under alkaline conditions to form 4-(2,4-dinitrophenoxymethyl)-1,3-dioxolanes, which are further reduced to the compounds of formula (I). In an alternate process, the 4-hydroxymethyl-1,3-dioxolanes are reacted with 4-halo-3-nitranilines or 2-halo-5-nitranilines, the product further reacted first under basic conditions with chloroformic acid ester followed by treatment with strong base, alkylation or alkoxylation, reduction, and optionally further alkylation of alkoxylation to arrive at the compounds (I).
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: October 5, 1999
    Assignee: Hans Schwarzkopf GmbH & Co. KG
    Inventors: Mustafa Akram, Wolfgang Bauer, Andreas Bittner, Astrid Kleen
  • Patent number: 5676706
    Abstract: Compounds of the formula (I) and their salts with inorganic and organic acids, ##STR1## in which R.sub.1 is a hydrogen atom or a trimethylsilyl group, R.sub.2, R.sub.3, R.sub.4, and R.sub.5 are, independently of each other, a hydrogen atom, a (C.sub.1 -C.sub.4) alkyl group, a hydroxy-(C.sub.2 -C.sub.3) alkyl group, an alkoxy-(C.sub.2 -C.sub.3) group, an amino-(C.sub.2 -C.sub.3) group, or a 2,3-dihydroxypropyl group, and in which R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are not simultaneously hydrogen atoms, and processes for their preparation and use as hair-coloring agents.
    Type: Grant
    Filed: October 25, 1995
    Date of Patent: October 14, 1997
    Inventors: Mustafa Akram, Wolfgang Wolff, Andreas Bittner, Uwe Kobs
  • Patent number: 5508467
    Abstract: The present invention relates to a process for the preparation of compounds of the general formula I ##STR1## by reaction of compounds of the general formula II ##STR2## with compounds of the general formula III ##STR3## in inert aprotic solvents in the presence of a base and subsequent rearrangement of the resulting intermediate compound with an alkali metal hydroxide, characterized in that the intermediate compound is not isolated.
    Type: Grant
    Filed: August 22, 1994
    Date of Patent: April 16, 1996
    Assignee: Cassella Aktiengesellschaft
    Inventors: Wolfgang Bauer, Klaus Delpy, Andreas Bittner