Patents by Inventor Ludwig Hoffmann

Ludwig Hoffmann 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).

  • Standardized extracts of
    Patent number: 7045158
    Abstract: The present invention relates to an improved extract of Scutellaria lateriflora, a method of preparing the same, and a pharmaceutical composition prepared from the present extract suitable for treating anxiety, insomnia, convulsions, muscle tension and spasm, and related manifestations and disorders in humans and other mammals. The invention also relates to an improved method of treating anxiety, insomnia, convulsions, muscle tension and spasm, and related manifestations and disorders in humans and other mammals by administering the improved extract of Scutellaria lateriflora.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: May 16, 2006
    Inventors: Philip E. Wolfson, David Ludwig Hoffmann
  • Standardized extracts of Scutellaria lateriflora
    Patent number: 6740343
    Abstract: The present invention relates to an improved extract of Scutellaria lateriflora, a method of preparing the same, and a pharmaceutical composition prepared from the present extract suitable for treating anxiety, insomnia, convulsions, muscle tension and spasm, and related manifestations and disorders in humans and other mammals. The invention also relates to an improved method of treating anxiety, insomnia, convulsions, muscle tension and spasm, and related manifestations and disorders in humans and other mammals by administering the improved extract of Scutellaria lateriflora.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: May 25, 2004
    Assignee: Phytos, Inc.
    Inventors: Philip E. Wolfson, David Ludwig Hoffmann
  • Standardized extracts of scutellaria lateriflora
    Publication number: 20030054050
    Abstract: The present invention relates to an improved extract of Scutellaria lateriflora, a method of preparing the same, and a pharmaceutical composition prepared from the present extract suitable for treating anxiety, insomnia, convulsions, muscle tension and spasm, and related manifestations and disorders in humans and other mammals. The invention also relates to an improved method of treating anxiety, insomnia, convulsions, muscle tension and spasm, and related manifestations and disorders in humans and other mammals by administering the improved extract of Scutellaria lateriflora.
    Type: Application
    Filed: September 17, 2002
    Publication date: March 20, 2003
    Inventors: Philip E. Wolfson, David Ludwig Hoffmann
  • Process for extruding a thermoplastic melt
    Patent number: 4812267
    Abstract: On extrusion of thermoplastic melts, flow anomalies occurring in the extrusion dies can be decisively reduced when dies are used whose surfaces coming into contact with the melts are provided with a thermally applied spray coating.
    Type: Grant
    Filed: October 2, 1987
    Date of Patent: March 14, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Karl-Ludwig Hoffmann, Gunter Eiden, Eugen Morach
  • Light emitting diode having silicon carbide layers
    Patent number: 4531142
    Abstract: A light emitting diode has a substrate body consisting of silicon carbide, which is transmissive for the luminescent radiation generated by the diode. The diode has a first epitaxially deposited layer, consisting of silicon carbide of a first conductivity type, disposed on the substrate body, and a second epitaxially deposited layer of silicon carbide of a second conductivity type disposed on the first layer. The diode has one electrode connected to the second layer and another electrode connected to an exposed portion of the first layer.
    Type: Grant
    Filed: February 16, 1983
    Date of Patent: July 23, 1985
    Assignee: Siemens Aktiengesellschaft
    Inventors: Claus Weyrich, Guenther Ziegler, Ludwig Hoffmann, Dietmar Theis