Patents by Inventor Lawrence W. Markus

Lawrence W. Markus 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).

  • Device for isolating an analyte from a sample, and methods of use
    Patent number: 9562226
    Abstract: A device for extraction or isolation of an analyte, such as a nucleic acid, a protein, or a cell, from a sample, and in particular from a biological sample is described. Methods of using the device are also described.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: February 7, 2017
    Assignees: Quidel Corporation, Northwestern University
    Inventors: Ashley Danielle Cramer, Mark J. Fisher, Jacqueline R. Groves, David M. Kelso, Lawrence W. Markus, Zaheer Parpia, Kunal Sur, Tom Westberg
  • DEVICE FOR ISOLATING AN ANALYTE FROM A SAMPLE, AND METHODS OF USE
    Publication number: 20130302791
    Abstract: A device for extraction or isolation of an analyte, such as a nucleic acid, a protein, or a cell, from a sample, and in particular from a biological sample is described. Methods of using the device are also described.
    Type: Application
    Filed: May 7, 2013
    Publication date: November 14, 2013
    Applicants: Northwestern University, Quidel Corporation
    Inventors: Ashley Danielle Cramer, Mark J. Fisher, Jacqueline R. Groves, David M. Kelso, Lawrence W. Markus, Zaheer Parpia, Kunal Sur, Tom Westberg
  • Printer paper take-up and storage device
    Patent number: 4346854
    Abstract: A paper web take-up and storage device for a teleprinter, having a spring biased guide bail to sense paper length and a control switch that energizes a storage reel drive motor for take-up when needed, is also equipped with a paper sensor arm to detect a no-paper condition; a single switch actuator lever that is aligned with the bail, with the sensor arm, and with the control switch affords complete control for both take-up and no-paper conditions in an arrangement that allows limited reverse movement of the web back toward the printer with no appreciable resistance apart from a relatively weak bail bias spring. The reel includes a spring-latched guide flange adjustable to accommodate a number of different paper widths.
    Type: Grant
    Filed: October 24, 1980
    Date of Patent: August 31, 1982
    Assignee: Extel Corporation
    Inventors: Lawrence W. Markus, George Smejkal, Melvin A. Lace