Patents by Inventor Alexander Kasejew

Alexander Kasejew 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).

  • Diagnostic tape unit and a process for its production
    Patent number: 10413223
    Abstract: A diagnostic tape unit and a process for producing it are provided, in which disposable, test units are applied to a rollable transport tape which is wound onto an unwinding spool and is connected to a take-up spool such that the test units can be successively made available to a user by winding on the transport tape. One or both of the leading end and trailing end of the transport tape is connected to their corresponding spools by means of an auxiliary tape.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: September 17, 2019
    Assignee: Roche Diabetes Care, Inc.
    Inventors: Wolfgang Ditscher, Karlheinz Joest, Ria Daumbach, Alexander Kasejew, Daniel Aigl
  • Method for producing an analysis element spreading layer
    Patent number: 8586376
    Abstract: Methods of producing an analysis spreading layer for absorbing a liquid to be analyzed, by: supplying a porous membrane having a bottom, a top and a thickness D, the size of the pores of the membrane increasing over its thickness D; cutting the membrane at a predefined distance, the spreading layer being a sublayer with a thickness d less than the starting thickness D, the pores of the spreading layer having a fluid connection to one another in such a manner that it is permeable to a liquid. The membrane surface is formed by removing a sublayer of the membrane being the liquid outlet side of the spreading layer. The mean size of the pores on the liquid outlet side is at least 1 ?m.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: November 19, 2013
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Herbert Harttig, Bernd Hiller, Wolfgang Schwoebel, Alexander Kasejew
  • SPREADING LAYER AND METHOD FOR PRODUCING AN ANALYSIS ELEMENT SPREADING LAYER
    Publication number: 20120189496
    Abstract: Methods of producing an analysis spreading layer for absorbing a liquid to be analyzed, by: supplying a porous membrane having a bottom, a top and a thickness D, the size of the pores of the membrane increasing over its thickness D; cutting the membrane at a predefined distance, the spreading layer being a sublayer with a thickness d less than the starting thickness D, the pores of the spreading layer having a fluid connection to one another in such a manner that it is permeable to a liquid. The membrane surface is formed by removing a sublayer of the membrane being the liquid outlet side of the spreading layer. The mean size of the pores on the liquid outlet side is at least 1 ?m.
    Type: Application
    Filed: December 20, 2011
    Publication date: July 26, 2012
    Applicant: ROCHE DIAGNOSTICS OPERATIONS, INC.
    Inventors: Herbert HARTTIG, Bernd HILLER, Wolfgang SCHWOEBEL, Alexander KASEJEW
  • DIAGNOSTIC TAPE UNIT AND A PROCESS FOR ITS PRODUCTION
    Publication number: 20090238721
    Abstract: A diagnostic tape unit and a process for producing is are provided, in which disposable, test units are applied to a rollable transport tape which is wound onto an unwinding spool and is connected to a take-up spool such that the test units can be successively made available to a user by winding on the transport tape. One or both of the leading end and trailing end of the transport tape is connected to their corresponding spools by means of an auxiliary tape.
    Type: Application
    Filed: March 20, 2009
    Publication date: September 24, 2009
    Inventors: Wolfgang Ditscher, Karlheinz Joest, Ria Dambach, Alexander Kasejew, Daniel Aigl