Patents by Inventor Karl Sturm

Karl Sturm 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).

  • Patent number: 7297590
    Abstract: A method for producing an integrated PIN photodiode. The PIN photodiode contains a doped region of a first conduction type near the substrate and a doped region that is remote from the substrate. The doped region that is remote from the substrate has a different construction type than the region near the substrate. In addition, an intermediate region provided that is a range between the doped region remote from the substrate and the doped region near the substrate. The intermediate region is undoped or provided with weak doping.
    Type: Grant
    Filed: August 14, 2003
    Date of Patent: November 20, 2007
    Assignee: Infineon Technologies, AG
    Inventors: Karlheinz Müller, Johannes Karl Sturm
  • Patent number: 6559786
    Abstract: The invention provides a circuit arrangement for conversion of an input current signal (11) to a digital output signal (43). In particular, the invention relates to a method for providing a low-capacitance voltage node for a comparator input of a tracking analog/digital converter. An input circuit node (12a) is supplied with an input current signal (11). A feedback current signal (13) is produced by the input circuit node (12a) in order to operate a tracking analog/digital converter. A difference current signal (14) is likewise produced by the input circuit node (12a), and is supplied to a transimpedance resistance element (15) connected to the input circuit node. A second connection of the transimpedance resistance element (15) is connected to a reference circuit node (12b). An intermediate variable (22) is produced at the reference circuit node (12b), and is supplied to a downstream converter device (23). A constant voltage with respect to ground (33) is maintained at the input circuit node (12a).
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: May 6, 2003
    Assignee: Infineon Technologies AG
    Inventors: Stefan Groiss, Johannes Karl Sturm
  • Publication number: 20020070888
    Abstract: The invention provides a circuit arrangement for conversion of an input current signal (11) to a digital output signal (43). In particular, the invention relates to a method for providing a low-capacitance voltage node for a comparator input of a tracking analog/digital converter. An input circuit node (12a) is supplied with an input current signal (11). A feedback current signal (13) is produced by the input circuit node (12a) in order to operate a tracking analog/digital converter. A difference current signal (14) is likewise produced by the input circuit node (12a), and is supplied to a transimpedance resistance element (15) connected to the input circuit node. A second connection of the transimpedance resistance element (15) is connected to a reference circuit node (12b). An intermediate variable (22) is produced at the reference circuit node (12b), and is supplied to a downstream converter device (23). A constant voltage with respect to ground (33) is maintained at the input circuit node (12a).
    Type: Application
    Filed: October 9, 2001
    Publication date: June 13, 2002
    Inventors: Stefan Groiss, Johannes Karl Sturm
  • Patent number: 4478843
    Abstract: What are disclosed are salidiuretic compounds of the formula ##STR1## and physiologically acceptable salts thereof, wherein R is phenyl, furyl or thienyl, intermediates of said compounds, methods for making said compounds, salidiuretic pharmaceutical preparations containing said compounds or salts, and methods for treating humans and other mammals with such compounds or salts.
    Type: Grant
    Filed: November 4, 1981
    Date of Patent: October 23, 1984
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Karl Sturm, Roman Muschaweck, Max Hropot
  • Patent number: 4406895
    Abstract: The invention relates to base-substituted anthranilic acids of the formula I ##STR1## in which R denotes furyl, thienyl or phenyl, and to physiologically acceptable salts thereof, and also to a process for their preparation, to an agent containing these and to their use as medicaments.
    Type: Grant
    Filed: January 20, 1982
    Date of Patent: September 27, 1983
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Karl Sturm, Roman Muschaweck, Max Hropot
  • Patent number: 4341773
    Abstract: The present invention relates to compounds of the formula I ##STR1## wherein R is furyl, thienyl or phenyl, to physiologically acceptable salts thereof, to a process for their manufacture, to a composition comprising said compounds and to their use as a medicament.
    Type: Grant
    Filed: March 9, 1981
    Date of Patent: July 27, 1982
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Karl Sturm, Roman Muschaweck
  • Patent number: 4339446
    Abstract: What are disclosed are compounds of the formula ##STR1## in which R denotes alkyl, alkenyl, cycloalkyl or cycloalkylalkyl, each of which has up to 10 C atoms, or phenyl and Ar denotes phenyl, thienyl or furyl and salts thereof, the preparation of these compounds and their use as medicaments and also medicaments of this type as such.
    Type: Grant
    Filed: February 20, 1981
    Date of Patent: July 13, 1982
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Karl Sturm, Roman Muschaweck
  • Patent number: 4161533
    Abstract: Salidiuretically-active 5-Sulfamoyl-orthanilic acids and their salts, substituted in 4-position by halogen, methyl, phenoxy or phenylthio and by furyl or thienyl at the nitrogen atom, are disclosed, as is and a process for their manufacture by reacting a furyl- or thienyl-substituted amine with corresponding halogen-substituted benzene derivatives.
    Type: Grant
    Filed: April 26, 1978
    Date of Patent: July 17, 1979
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Karl Sturm, Roman Muschaweck
  • Patent number: 4029787
    Abstract: Antihypertensively-active 3-sulfamoyl-4-piperazinyl-benzoic acids, optionally substituted in the 2-position by halogen or alkyl, and the esters, amides, and nitriles of these acids are disclosed, as is a method for making these compounds by the reaction of the corresponding 4-halogeno- or 4-alkyl-(or 4-aryl-) sulfonyloxy-benzoic acids (or their esters etc.) with piperazines.
    Type: Grant
    Filed: September 4, 1975
    Date of Patent: June 14, 1977
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Karl Sturm, Franz Starey
  • Patent number: 4001284
    Abstract: A process for the manufacture of sulfamoyl anthranilic acids of the general formula I ##STR1## in which Ph is phenyl substituted with 1 or 2 halogen atoms, alkyl groups or etherified hydroxy groups, and R is aralkyl, heteroaralkyl or cycloalkyl-alkyl, unsaturated in the aliphatic moiety, including oxygen or sulfur and/or substituted with halogen, alkyl or alkoxy in the aromatic moiety, by reacting carboxylic acids with at least one mol-equivalent of an amine(R--NH.sub.2)at a temperature above 120.degree. C.
    Type: Grant
    Filed: February 12, 1975
    Date of Patent: January 4, 1977
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Karl Sturm