Patents by Inventor Ralf Bertram

Ralf Bertram 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: 20140081996
    Abstract: Means and a computerized method for recommending items such as books and audio compact disks. For each item, a user profile includes ratings provided by users of the system. Unlike present recommendation systems, the user profiles do not include pre-computed similarity factors measuring similarity between users. Rather, when an advisee requests a recommendation, similarity measures are computed comparing the advisee to other users, and the similarity measures are associated with the other users. A subset of the users is selected, where the subset includes the users most similar to the advisee. A recommendation is made based on the ratings by the members of the selected subset.
    Type: Application
    Filed: November 25, 2013
    Publication date: March 20, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ralf BERTRAM, Gerhard SCHRIMPF, Hermann STAMM-WILBRANDT
  • Patent number: 6906021
    Abstract: Matrix particles having a perfume component and washing-active surfactant component can be used in body-cleansing compositions and housecleaning products.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: June 14, 2005
    Assignee: Symrise GmbH & Co. KG
    Inventors: Norbert Trage, Ralf Bertram, Steffen Sonnenberg, Jürgen Meyknecht
  • Publication number: 20040097386
    Abstract: Matrix particles having a perfume component and washing-active surfactant component can be used in body-cleansing compositions and housecleaning products.
    Type: Application
    Filed: July 3, 2003
    Publication date: May 20, 2004
    Inventors: Norbert Trage, Ralf Bertram, Steffen Sonnenberg, Jurgen Meyknecht
  • Patent number: 6730795
    Abstract: Phenylene-bis-benzimidazole-tetrasulfonic acid disodium salt which is largely free from impurities can be prepared by reacting o-phenylenediamine with terephthalic acid and chlorosulfonic acid in the presence of strong acids with a reaction time of 10 to 15 hours.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: May 4, 2004
    Assignee: Symrise GmbH & Co. KG
    Inventors: Ralf Bertram, Stephan Hillers, Oskar Koch, Harry Erfurt, Gerald Reinders
  • Patent number: 6624125
    Abstract: Care agents based on matrix particles having a perfume component and washing-active surfactant components can be used in body-cleansing compositions and household cleaners.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: September 23, 2003
    Assignee: Haarmann & Reimer GbmH
    Inventors: Norbert Trage, Ralf Bertram, Steffen Sonnenberg, Jürgen Meyknecht
  • Publication number: 20020178057
    Abstract: Means and a computerized method for recommending items such as books and audio compact disks. For each item, a user profile includes ratings provided by users of the system. Unlike present recommendation systems, the user profiles do not include pre-computed similarity factors measuring similarity between users. Rather, when an advisee requests a recommendation, similarity measures are computed comparing the advisee to other users, and the similarity measures are associated with the other users. A subset of the users is selected, where the subset includes the users most similar to the advisee. A recommendation is made based on the ratings by the members of the selected subset.
    Type: Application
    Filed: December 5, 2001
    Publication date: November 28, 2002
    Applicant: International Business Machines Corporation
    Inventors: Ralf Bertram, Gerhard Schrimpf, Hermann Stamm-Wilbrandt
  • Publication number: 20020111280
    Abstract: Care agents based on matrix particles having a perfume component and washing-active surfactant components can be used in body-cleansing compositions and household cleaners.
    Type: Application
    Filed: September 5, 2001
    Publication date: August 15, 2002
    Inventors: Norbert Trage, Ralf Bertram, Steffen Sonnenberg, Jurgen Meyknecht
  • Publication number: 20020082429
    Abstract: Phenylene-bis-benzimidazole-tetrasulfonic acid disodium salt which is largely free from impurities can be prepared by reacting o-phenylenediamine with terephthalic acid and chlorosulfonic acid in the presence of strong acids with a reaction time of 10 to 15 hours.
    Type: Application
    Filed: November 27, 2001
    Publication date: June 27, 2002
    Inventors: Ralf Bertram, Stephan Hillers, Oskar Koch, Harry Erfurt, Gerald Reinders
  • Patent number: 4935836
    Abstract: The DIN Standard VDE 160/01.86 involves specific requirements as far as the dielectric strength of electronic devices is concerned which are intended for operation at high-voltage networks. A guard circuit for the protection of capacitive loads is described. In this system, a current detector means is provided to detect the current flowing into the load and to emit a first blocking signal at least when the amount of the detected current exceeds a preset maximum value. A voltage detector means is provided to detect the voltage in the supply network and to emit a second blocking signal when the amount of the detected voltage exceeds a preset maximum value. A controllable switching means is provided which is so designed and in such controlled communication with the current and voltage detector means that the load will be isolated from the supply network as soon as at least one of the two blocking signals is applied.
    Type: Grant
    Filed: April 21, 1989
    Date of Patent: June 19, 1990
    Assignee: Bicc-Vero Electronics GmbH
    Inventors: Juergen Labbus, Ralf Bertram