Patents by Inventor Alexander Bloch

Alexander Bloch 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).

  • Aircraft cabin pressure control system
    Patent number: 5520578
    Abstract: A cabin pressure control system for aircraft includes a controller for receiving and comparing set point and actual values for an aircraft cabin pressure. A speed-controlled drive for an air outlet valve is connected to the controller for triggering the valve as a function of the comparison. A remote indication is issued to the controller solely regarding a newly established actual cabin pressure, without a remote position indication from the valve.
    Type: Grant
    Filed: May 19, 1994
    Date of Patent: May 28, 1996
    Assignee: Nord-Micro Elektronik Feinmechanik AG
    Inventors: Alexander Bloch, Hanns-Ulrich Ettl, Peter Kuhn
  • Process of preparing 2-azido-2-deoxyarabinofuranosyl halides
    Patent number: 4321366
    Abstract: Novel arabinofuranosyl nucleosides and nucleotides having 2'-azido,2'-amino, or 2'-hydrocarbylamino substituents, which have antitumor, antiviral, and antimicrobial properties, are prepared by condensation of a pyrimidine, purine, or 1,3-oxazine base with an acylated 2-azido-2-deoxyarabinofuranosyl halide, followed by deblocking and catalytic hydrogenation, where appropriate, to convert the 2'-azido group to a 2'-amino group and, if desired, alkylation or the like to convert the 2'-amino group to a 2'-hydrocarbylamino group.
    Type: Grant
    Filed: June 3, 1980
    Date of Patent: March 23, 1982
    Assignee: Research Corporation
    Inventors: Miroslav V. Bobek, Alexander Bloch, Yung-Chi Cheng
  • 2-Substituted arabinofuranosyl nucleosides and nucleotides
    Patent number: 4230698
    Abstract: Novel arabinofuranosyl nucleosides and nucleotides having 2'-azido, 2'-amino, or 2'-hydrocarbylamino substituents, which have antitumor, antiviral, and antimicrobial properties, are prepared by condensation of a pyrimidine, purine, or 1,3-oxazine base with an acylated 2-azido-2-deoxyarabinofuranosyl halide, followed by deblocking and catalytic hydrogenation, where appropriate, to convert the 2'-azido group to a 2'-amino group and, if desired, alkylation or the like to convert the 2'-amino group to a 2'-hydrocarbylamino group.
    Type: Grant
    Filed: May 12, 1978
    Date of Patent: October 28, 1980
    Assignee: Research Corporation
    Inventors: Miroslav V. Bobek, Alexander Bloch, Yung-Chi Cheng