Patents by Inventor SPYROS TSEREGOUNIS

SPYROS TSEREGOUNIS 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).

  • Systems and methods for determining a state of deterioration of engine oil using multiple preselected oil properties
    Patent number: 9244054
    Abstract: Systems and methods for automatically evaluating the useful life of an engine oil based on data corresponding to a plurality of preselected key oil properties. The evaluation includes determining, in connection with each of the pre-selected key oil properties, a first current measured oil property value, a first reference oil property value, a first deterioration-limit value, and a first weighting factor. The evaluation also includes determining a single index value, indicating a state of deterioration of the engine oil, in a calculation using each of the values and factors.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: January 26, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Eric W. Schneider, Spyros Tseregounis, Matthew J. Snider, Michael Seemann
  • SYSTEMS AND METHODS FOR DETERMINING A STATE OF DETERIORATION OF ENGINE OIL USING MULTIPLE PRESELECTED OIL PROPERTIES
    Publication number: 20140019068
    Abstract: Systems and methods for automatically evaluating the useful life of an engine oil based on data corresponding to a plurality of preselected key oil properties. The evaluation includes determining, in connection with each of the pre-selected key oil properties, a first current measured oil property value, a first reference oil property value, a first deterioration-limit value, and a first weighting factor. The evaluation also includes determining a single index value, indicating a state of deterioration of the engine oil, in a calculation using each of the values and factors.
    Type: Application
    Filed: July 10, 2012
    Publication date: January 16, 2014
    Applicant: Adam Opel AG@@GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: ERIC W. SCHNEIDER, SPYROS TSEREGOUNIS, MATTHEW J. SNIDER, MICHAEL SEEMANN