Patents by Inventor Rolf Vogelsanger

Rolf Vogelsanger 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).

  • Method and apparatus for securing attache cases
    Patent number: 4267553
    Abstract: An attache case is secured against unauthorized handling by providing an alarm and at least one sensor capable of sensing at least two conditions relative to the forces on said attache case. One of the conditions constitutes a predetermined safety state and the other of the conditions constitutes a force on the case deviating from said safety state by a predetermined value. The sensor is connected to the alarm by a trigger circuit so that the alarm is inactive during one condition and active during the other condition.
    Type: Grant
    Filed: January 5, 1979
    Date of Patent: May 12, 1981
    Inventors: Rolf Vogelsanger, Anton Wicki
  • Spiro compounds
    Patent number: 4042635
    Abstract: Compounds which contain a group bonded directly to an aromatic nucleus of the formula--(CH.sub.2 --).sub.n --X (1)in which n is a positive integer having a value of at least 2 and X represents a removable substituent.
    Type: Grant
    Filed: December 8, 1975
    Date of Patent: August 16, 1977
    Assignee: Ciba-Geigy Corporation
    Inventors: Paul Rys, Rolf Vogelsanger
  • Spiro compounds
    Patent number: 3950403
    Abstract: Compounds which contain a group bonded directly to an aromatic nucleus of the formula--(CH.sub.2 --).sub.n --X 1.in which n is a positive integer having a value of at least 2 and X represents a removable substituent.
    Type: Grant
    Filed: December 2, 1974
    Date of Patent: April 13, 1976
    Assignee: Ciba-Geigy Corporation
    Inventors: Paul Rys, Rolf Vogelsanger