Patents by Inventor Gerhard Seibert

Gerhard Seibert 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: 5206405
    Abstract: A new Bacillus species and the appropriate enzymes obtained therefrom can be used to break down phosphoglycolipid antibiotics. The breakdown products of moenomycins display antibiotic activity or can be used as building blocks for the synthetic preparation of transglycosylase inhibitors.
    Type: Grant
    Filed: August 11, 1992
    Date of Patent: April 27, 1993
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Werner Aretz, Dirk Bottger, Gerhard Seibert, Alois Tumulka, Peter Welzel, Kurt Hobert
  • Patent number: 5158888
    Abstract: Streptomyces parvullus, DSM 3816, produces on aerobic fermentation new antibiotics which are distinguished by antimicrobial activity even after derivatization.
    Type: Grant
    Filed: February 19, 1992
    Date of Patent: October 27, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Peter Hammann, Susanne Grabley, Hartmut Voelskow, Burkhard Sachse, Wolfgang Raether, Carlo Giani, Gerhard Seibert
  • Patent number: 5128370
    Abstract: New furans and lactones from streptomycetes, a process for the preparation thereof, and the use thereof.It is possible with the aid of various streptomycetes species to prepared new compounds having a furan or lactone structure. These compounds have a pharmacological, especially antibiotic, action.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: July 7, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Susanne Grabley, Joachim Wink, Klaus Kuhlein, Gerhard Seibert, Klaus Hutter, Hermann Uhr, Axel Zeeck
  • Patent number: 5112806
    Abstract: Mersacidin, a cyclic peptide of the formula I ##STR1## has antibiotic activity.
    Type: Grant
    Filed: August 15, 1989
    Date of Patent: May 12, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Sukumar Chatterjee, Sugata Chatterjee, Bimal N. Ganguli, Deepak K. Chatterjee, Rajendra K. H. Jani, Richard H. Rupp, Hans-Wolfram Fehlhaber, Herbert Kogler, Gerhard Seibert, Volker Teetz
  • Patent number: 5100921
    Abstract: New angucyclinones with a therapeutic action can be prepared with the aid of a strain of the genus Streptomyces.
    Type: Grant
    Filed: April 25, 1989
    Date of Patent: March 31, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Susanne Grabley, Joachim Wink, Carlo Giani, Gerhard Seibert, Wolfgang Raether, Susanne Dobreff, Axel Zeeck
  • Patent number: 5100887
    Abstract: Cephemcarboxylic acid esters of the general formula ##STR1## pharmaceutical preparations which are active against bacterial infections, which contain such cephem derivatives, a process for the preparation of the cephem derivatives and the pharmaceutical preparations, and also the use of the cephem derivatives for combating bacterial infections.
    Type: Grant
    Filed: July 23, 1990
    Date of Patent: March 31, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Friedhelm Adam, Jurgen Blumbach, Walter Durckheimer, Gerd Fischer, Burghard Mencke, Dieter Isert, Gerhard Seibert
  • Patent number: 5091382
    Abstract: Cephalosporin derivatives of the general formula ##STR1## pharmaceutical preparations active against bacterial infections which contain such cephalosporin derivatives, processes for the preparation of the cephalosporin derivatives, use of the cephalosporin derivatives for the preparation of a pharmaceutical for combating bacterial infections, and starting products for the preparation of cephalosporin derivatives.
    Type: Grant
    Filed: July 13, 1990
    Date of Patent: February 25, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Friedhelm Adam, Walter Durckheimer, Karl-Heinz Scheunemann, Dieter Isert, Gerhard Seibert
  • Patent number: 5089521
    Abstract: New 10-membered ring lactones, a process for the preparation thereof, and the use thereof.It is possible with the aid of Penicillium strains to prepare new 10-membered ring lactones having a pharmacological action.
    Type: Grant
    Filed: August 3, 1990
    Date of Patent: February 18, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Joachim Wink, Susanne Grabley, Gerhard Seibert, Klaus Hutter, Axel Zeeck
  • Patent number: 5036063
    Abstract: Penem derivatives of the formula ##STR1## having R.sup.1 equal to 3-oxocyclobutyl and R.sup.2 equal to H or an ester-forming group, pharmaceutical preparations active against bacterial infections and which contain penem derivatives of this type, processes for the preparation of the penem derivatives and the pharmaceutical preparations, and use of the penem derivatives for the control of bacterial infections are described.
    Type: Grant
    Filed: November 24, 1989
    Date of Patent: July 30, 1991
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rudolf Lattrell, Walter Durckheimer, Gerhard Seibert
  • Patent number: 5011827
    Abstract: The invention relates to elaiophyline derivatives of the formula I ##STR1## in which R.sup.1 and R.sup.1' are identical or different and represent a radical of the formula II/or III ##STR2## in which R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.7 have the meanings given. The invention furthermore relates to a process for the preparation of these elaiophyline derivatives and also the use of the lattere as medicaments, in particular as anthelmintically acting medicaments.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: April 30, 1991
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gerhard Kretzschmar, Dieter Duwel, Susanne Grabley, Peter Hammann, Gerhard Seibert, Hartmut Voelskow, Carlo Giani
  • Patent number: 4998870
    Abstract: Apparatus for the extrusion-coating of a core, especially of an electrical conductor, with a sheathing having at least two layers or strips of different materials or differently colored materials, the apparatus having feed conduits for the plasticized materials and outflow passageways through which the core to be extrusion-coated can pass, the outflow passageways being selectively connectable to the feed conduits via a distributor device. In order to avoid the need for cleaning the conduits of the distributor device, the distributor device is formed by a sleeve (8) which is arranged rotatably between end positions in relation to an outer housing (1) having feed conduits (2, 3) for the plasticized materials. The sleeve also has a number of conduits corresponding to the number of materials to be extruded, to connect feed conduits (2, 3) alternately to the outflow cross-sections (15, 20) for the plasticized materials.
    Type: Grant
    Filed: July 26, 1988
    Date of Patent: March 12, 1991
    Assignee: Maschinen Gesellschaft m.b.H. Rosendahl
    Inventor: Gerhard Seibert
  • Patent number: 4945108
    Abstract: New angucyclinones with a therapeutic action can be prepared with the aid of a strain of the genus Streptomyces.
    Type: Grant
    Filed: April 24, 1989
    Date of Patent: July 31, 1990
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Susanne Grabley, Joachim Wink, Carlo Giani, Gerhard Seibert, Wolfgang Raether, Susanne Dobreff, Axel Zeeck
  • Patent number: 4919932
    Abstract: A pharmaceutical formulation having a synergistic anti-bacterial activity and comprising(a) a cephalosporin derivative or a physiologically acceptable salt or ester thereof and(b) a penem antibiotic of the basic structure (B) ##STR1## or a physiologically acceptable salt or ester thereof, a process for preparing such a formulation and its use for the treatment of bacterial infections.
    Type: Grant
    Filed: June 2, 1987
    Date of Patent: April 24, 1990
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Michael Limbert, Elmar Schrinner, Gerhard Seibert
  • Patent number: 4914216
    Abstract: Streptomyces parvullus, DSM 3816, produces on aerobic fermentation new antibiotics which are distinguished by antimicrobial activity even after derivatization.
    Type: Grant
    Filed: December 22, 1987
    Date of Patent: April 3, 1990
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Peter Hammann, Susanne Grabley, Hartmut Voelskow, Burkhard Sachse, Wolfgang Raether, Carlo Giani, Gerhard Seibert
  • Patent number: 4885151
    Abstract: A diagnostic aid for the scintigraphic visualization of malignant tumors which contains a radionuclide which is bonded by means of a complex-forming agent to the substance obtained by the enzymatic processing of murein with enzyme consisting essentially of hen's eggwhite lysozyme.
    Type: Grant
    Filed: June 25, 1987
    Date of Patent: December 5, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Erich Oberhausen, Ludwig Kuhlmann, Gerhard Seibert, Axel Steinstrasser, Hans-Joachim Schroth, Karl-Heinz Bremer
  • Patent number: 4861775
    Abstract: Streptomyces spec. DSM 3813 produces novel compounds with a basic phenoxazinone structure, which have an antifungal and antiviral action and can be used as lipoxygenase inhibitors.
    Type: Grant
    Filed: August 25, 1987
    Date of Patent: August 29, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Axel Zeeck, Sabine Breiding-Mack, Susanne Grabley, Hartmut Voelskow, Gerhard Seibert
  • Patent number: 4861796
    Abstract: 2-Acetylaminogentisic acid has been isolated from the culture broth after cultivation of a bacterium of the genus Streptomyces. This compound has antibacterial actions against Gram-positive and Gram-negative bacteria.
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: August 29, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Axel Zeeck, Sabine Breiding-Mack, Susanne Grabley, Hartmut Voelskow, Gerhard Seibert
  • Patent number: 4647556
    Abstract: The invention relates to cephem derivatives of the general formula I ##STR1## and their physiologically acceptable acid addition salts, to pharmaceutical formulations active against bacterial infections, to processes for preparing the compounds and formulations, and to the use of the compounds for combating bacterial infections.
    Type: Grant
    Filed: March 3, 1983
    Date of Patent: March 3, 1987
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rudolf Lattrell, Reiner Kirrstetter, Wilfried Schwab, Walter Durckheimer, Gerhard Seibert
  • Patent number: 4456199
    Abstract: A control device for obtaining a uniform or even winding is provided for a winding machine for winding strand-shaped winding material, and includes a first measurement device which detects the position of the last winding to have been wound in each instance, a second measuring device for detecting the relative position of a spool with respect to a strand guide, and a computer for controlling the feed drive for the relative reciprocating traversing movement between the spool and the strand guide.
    Type: Grant
    Filed: June 22, 1981
    Date of Patent: June 26, 1984
    Inventor: Gerhard Seibert
  • Patent number: 4410147
    Abstract: A control device for obtaining a uniform or even winding is provided for a winding machine for winding strand-shaped winding material, and includes an electrical scanning device which detects the transition from a winding layer into a next higher winding layer by detecting the step that is formed during such transition. The scanning device does not make physical contact with the winding layer but relies on detection information furnished by opto-electrical or acousto-electrical sensing elements. This information is used to control the reversing of movement of a feed drive which effects the relative reciprocating traversing movement between the spool and a strand guide.
    Type: Grant
    Filed: June 22, 1981
    Date of Patent: October 18, 1983
    Inventor: Gerhard Seibert