Patents by Inventor Daniel Rolle

Daniel Rolle 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).

  • Methods and devices for open-bed atmospheric collection for supercritical fluid chromatography
    Patent number: 9731219
    Abstract: A supercritical fluid chromatography system comprises a first pump for pumping a first flow stream comprising a compressible fluid and a second pump for pumping a second flow stream comprising a modifier fluid. The second pump is in parallel with the first pump. A column is located in a combined flow stream. The column is located downstream of the first and second pumps. The combined flow stream comprises the first flow stream, the second flow stream, and a sample. A detector is located downstream of the column. A gas-liquid separator is located downstream of the detector. The gas-liquid separator is configured to vent a majority of the compressible fluid while maintaining a majority of the sample, thus preventing aerosolization of the flow stream and minimizing sample loss as well as cross contamination. An open bed collector is located after the gas-liquid separator.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: August 15, 2017
    Assignee: Waters Technologies Corporation
    Inventors: Ziqiang Wang, Steven L. Zulli, Daniel Rolle, Chuping Luo, Harbaksh Sidhu
  • METHODS AND DEVICES FOR OPEN-BED ATMOSPHERIC COLLECTION FOR SUPERCRITICAL FLUID CHROMATOGRAPHY
    Publication number: 20140217031
    Abstract: A supercritical fluid chromatography system comprises a first pump for pumping a first flow stream comprising a compressible fluid and a second pump for pumping a second flow stream comprising a modifier fluid. The second pump is in parallel with the first pump. A column is located in a combined flow stream. The column is located downstream of the first and second pumps. The combined flow stream comprises the first flow stream, the second flow stream, and a sample. A detector is located downstream of the column. A gas-liquid separator is located downstream of the detector. The gas-liquid separator is configured to vent a majority of the compressible fluid while maintaining a majority of the sample, thus preventing aerosolization of the flow stream and minimizing sample loss as well as cross contamination. An open bed collector is located after the gas-liquid separator.
    Type: Application
    Filed: June 15, 2012
    Publication date: August 7, 2014
    Applicant: Waters Technologies Corporation
    Inventors: Ziqiang Wang, Steve Zulli, Daniel Rolle, Chuping Luo, Harbaksh Sidhu