Patents by Inventor Joachim Kessler

Joachim Kessler 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: 8007744
    Abstract: The present invention relates to a sample container for analyses suitable for medical diagnostics comprising a platform plate having at least one reaction chamber. The reaction chamber has a bottom and a sidewall which form a three-dimensional chamber which is open in the upward direction. The ratio of the numerical value of the surface area of the bottom is relatively large relative to the height of the sidewall. The ratio may be greater than or equal to 30, 35, 40, 45, 50, 60, 70, 80, or 90. The reaction chamber further comprises a binding area on an internal surface of the reaction chamber which may be functionalized for binding at least one chemical entity for use in an assay.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: August 30, 2011
    Assignee: Greiner Bio-One GmbH
    Inventors: Günther Knebel, Jörg Stappert, Heinrich Jehle, Joachim Kessler
  • Publication number: 20060151322
    Abstract: The present invention relates to a sample container for analyses suitable for medical diagnostics comprising a platform plate having at least one reaction chamber. The reaction chamber has a bottom and a sidewall which form a three-dimensional chamber which is open in the upward direction. The ratio of the numerical value of the surface area of the bottom is relatively large relative to the height of the sidewall. The ratio may be greater than or equal to 30, 35, 40, 45, 50, 60, 70, 80, or 90. The reaction chamber further comprises a binding area on an internal surface of the reaction chamber which may be functionalized for binding at least one chemical entity for use in an assay.
    Type: Application
    Filed: January 16, 2004
    Publication date: July 13, 2006
    Inventors: Gunther Knebel, Jorg Stappert, Heinrich Jehle, Joachim Kessler
  • Patent number: 4053472
    Abstract: 2-(5-Nitro-2-imidazolyl)-benzimidazoles of the formula ##STR1## wherein R.sub.1 and R.sub.2 are H, halo, alkyl, alkoxy, nitro, trifluoromethyl or carboxy; A is H, alkyl, hydroxyalkyl or an ester thereof, haloalkyl, phenyl or a tertiary aminoalkyl group; and X is alkyl, hydroxyalkyl or an ester thereof, are antimicrobials, especially against Trichomonas vaginalis.
    Type: Grant
    Filed: September 11, 1972
    Date of Patent: October 11, 1977
    Assignee: Schering Aktiengesellschaft
    Inventors: Clemens Rufer, Eberhard Schroder, Hans-Joachim Kessler
  • Patent number: 4038410
    Abstract: Nitroimidazoles of the formula ##STR1## wherein R is dialkylaminoacryloyl; 3-, 4-, or 5-pyrazolyl or a mixture thereof which is unsubstituted or substituted by alkyl or, at the 1-position, by hydroxyalkyl or a nitro ester thereof, acyloxyalkyl, nitro, phenyl or phenyl p-substituted by halo, alkoxy or nitro, or, in the 3- or 5-position or a mixture thereof by nitro; 3- or 5-alkyl-4-isooxazolyl or a mixture thereof; or 4-alkyl-5-pyrimidinyl, unsubstituted or substituted by alkyl, amino, 2-furyl or 5-nitro-2-furyl, and the physiologically acceptable acid addition salts thereof, possess anti-protozoal activity, e.g., against trichomonas vaginalis and Entamoeba histolytica.
    Type: Grant
    Filed: March 12, 1975
    Date of Patent: July 26, 1977
    Assignee: Schering Aktiengesellschaft
    Inventors: Clemens Rufer, Katica Schwarz, Hans-Joachim Kessler
  • Patent number: 4006243
    Abstract: Compounds of the formula ##STR1## wherein Z is a direct bond or alkylene of 1 - 3 carbon atoms which is unsubstituted or substituted on the carbon atom alpha to the phenyl group by alkyl or unsubstituted or substituted phenyl, R.sub.2 and R.sub.3 singly are H, alkyl, alkoxy, alkylmercapto, halo, nitro or, collectively, C.sub.4 H.sub.4, and R.sub.4 is alkenyl, alkinyl, unsubstituted or substituted phenyl or phenylalkyl, or, when Z is substituted methylene, also alkyl, are useful in combating Germatophyte infections, especially Trichophyton rubrum and mentagrophytes, and yeast infections, especially Candida albicans, as well as bacterial and fungal infections.
    Type: Grant
    Filed: April 11, 1975
    Date of Patent: February 1, 1977
    Assignee: Schering Aktiengesellschaft
    Inventors: Peter Strehlke, Hans-Joachim Kessler, Ulrich Redmann
  • Patent number: 4006241
    Abstract: 2-ACYL-5-NITROTHIAZOLES OF THE FORMULA ##STR1## wherein A' is furyl, thienyl or pyrrolyl substituted by halo, or phenyl substituted by 3 to 5 of halo, hydroxy, alkyl or alkoxy of 1-4 carbon atoms, possess antifungal activity, e.g., against Candida albicans, Trichophyton metagrophytes and Trichophyton rubrum.
    Type: Grant
    Filed: July 17, 1974
    Date of Patent: February 1, 1977
    Assignee: Schering Aktiengesellschaft
    Inventors: Peter Strehlke, Eberhard Schroeder, Hans-Joachim Kessler
  • Patent number: 3992374
    Abstract: Amino-substituted nitroimidazolyl-methyleneaminoimidazolidinones of the formula ##SPC1##Wherein --NR.sub.2 R.sub.3 is dialkylamino or heterocyclic amino, and the physiologically acceptable salts thereof, possess antitrichomonial activity.
    Type: Grant
    Filed: June 28, 1974
    Date of Patent: November 16, 1976
    Assignee: Schering Aktiengesellschaft
    Inventors: Clemens Rufer, Hans-Joachim Kessler
  • Patent number: 3966732
    Abstract: Nitroimidazolyl pyrimidines of the formula ##SPC1##And physiologically acceptable acid addition salts thereon wherein X is alkyl of 1-4 carbon atoms, R.sub.1 and R.sub.2 each are a hydrogen atom, alkyl of 1-4 carbon atoms, phenyl triflouromethyl or a monocyclic heterocyclic ring and R.sub.3 is a hydrogen atoms, alkyl of 1-4 carbon atoms, hydroxyalkoxy of 2-4 carbon atoms or an ester thereof of an alkanocarboxylic acid of 1-4 carbon atoms, oxoalkyl of 8-6 carbon atoms, or, when R.sub.1 or R.sub.2 is phenyl, alkylene having 1-2 carbon atoms in the chain joined to the 2-position of the phenyl ring possess trichomonicidal activity.
    Type: Grant
    Filed: April 14, 1975
    Date of Patent: June 29, 1976
    Assignee: Schering Aktiengesellschaft
    Inventors: Clemens Rufer, Eberhard Schroder, Hans-Joachim Kessler
  • Patent number: 3965103
    Abstract: Compounds of the formula v,2/12Wherein R.sub.1 is H, lower-alkyl, hydroxyalkyl, phenyl, aralkyl, or --(CH.sub.2) .sub.n --X wherein n is 0-4 and X is --COO-lower-alkyl, C.tbd.N or --COOH and R.sub.2 is H, lower-alkyl or aralkyl, produced by condensing a diamine of the formula ##SPC1##With a nitro compound of the formula R.sub.1 --CH.sub.2 --NO.sub.2 in the presence of formalin or paraformaldehyde, or with the R.sub.1 -- C(CH.sub.2 OH).sub.2 NO.sub.2 reaction product of the above nitro compound and formalin or paraformaldehyde, or with formalin or paraformaldehyde followed by reaction with the above nitro compound, and their acid addition salts, possess antimicrobial activity against both gram-positive and gram-negative bacteria and also against dermatophytes, yeasts and other fungi.
    Type: Grant
    Filed: September 20, 1974
    Date of Patent: June 22, 1976
    Assignee: Schering Aktiengesellschaft
    Inventors: Helmut Biere, Hermann Ulbrich, Hans-Joachim Kessler, Ulrich Redmann