Patents by Inventor H. A. A. Van Der Voort

H. A. A. Van Der Voort 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).

  • Etonogestrel esters
    Patent number: 7323454
    Abstract: The subject invention provides new progestogen esters and uses thereof.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: January 29, 2008
    Assignee: N.V. Organon
    Inventors: Henrik H De Nijs, Hendrikus Adrianus Antonius H.A.A. Van Der Voort, Dirk D. Leysen, Arij Jan A.J. Grootenhuis
  • Use of new etonogestrel esters
    Publication number: 20050222114
    Abstract: The subject invention provides a contraceptive and/or HRT kit comprising a contraceptively and/or therapeutically effective amount of a long-acting etonogestrel ester with a fatty-chain length of C7-C15.
    Type: Application
    Filed: May 22, 2003
    Publication date: October 6, 2005
    Inventors: Henrik De Nijs, H. A. A. Van Der Voort, Dirk Leysen, A. J. Grootenhuis, J. Van Der louw
  • High frequency electronic ballast
    Patent number: 6696800
    Abstract: A method and ballast for driving a high intensity discharge (HID) lamp include generating a very high frequency driving signal for the HID lamp, generating a low frequency modulating signal, amplitude modulating the driving signal with the modulating signal at a predetermined low initial modulation level, measuring a lamp voltage across the HID lamp, determining a standard deviation of the lamp voltage, comparing the standard deviation with a predetermined minimum level, if the standard deviation is above the predetermined minimum level, incrementally increasing the modulation level and repeating the amplitude modulating step, the measuring step, the determining step and the comparing step, and if the standard deviation is below the predetermined minimum level, maintaining the amplitude modulation at the determined level.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: February 24, 2004
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Jerry Martin Kramer, Jerzy Janczak, Hendrik A. Van Esveld, Ronald H. Van der Voort
  • High frequency electronic ballast
    Patent number: 6686703
    Abstract: An improved high frequency ballast is disclosed. The high frequency ballast establishes a lamp current for a gas discharge lamp during a starting operation of the gas discharge lamp wherein an operating ampere level of the lamp current facilitates a substantial achievement by the gas discharge lamp of a color specification associated with the gas discharge lamp. Thereafter, during a stable operation of the gas discharge lamp, the high frequency ballast applies a frequency modulation to an operating frequency of the lamp current and/or an amplitude modulation of the lamp current.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: February 3, 2004
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Robert A. Erhardt, Oscar J. Deurloo, Jerzy Janczak, Hendrik A. Van Esveld, Winston D. Couwenberg, Ronald H. Van Der Voort
  • High frequency electronic ballast
    Publication number: 20030127995
    Abstract: A method and ballast for driving a high intensity discharge (HID) lamp include generating a very high frequency driving signal for the HID lamp, generating a low frequency modulating signal, amplitude modulating the driving signal with the modulating signal at a predetermined low initial modulation level, measuring a lamp voltage across the HID lamp, determining a standard deviation of the lamp voltage, comparing the standard deviation with a predetermined minimum level, if the standard deviation is above the predetermined minimum level, incrementally increasing the modulation level and repeating the amplitude modulating step, the measuring step, the determining step and the comparing step, and if the standard deviation is below the predetermined minimum level, maintaining the amplitude modulation at the determined level.
    Type: Application
    Filed: December 20, 2002
    Publication date: July 10, 2003
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Jerry Martin Kramer, Jerzy Janczak, Hendrik A. Van Esveld, Ronald H. Van Der Voort
  • High frequency electronic ballast
    Publication number: 20030127993
    Abstract: An improved high frequency ballast is disclosed. The high frequency ballast establishes a lamp current for a gas discharge lamp during a starting operation of the gas discharge lamp wherein an operating ampere level of the lamp current facilitates a substantial achievement by the gas discharge lamp of a color specification associated with the gas discharge lamp. Thereafter, during a stable operation of the gas discharge lamp, the high frequency ballast applies a frequency modulation to an operating frequency of the lamp current and/or an amplitude modulation of the lamp current.
    Type: Application
    Filed: January 10, 2002
    Publication date: July 10, 2003
    Inventors: Robert A. Erhardt, Oscar J. Deurloo, Jerzy Janczak, Hendrik A. Van Esveld, Winston D. Couwenberg, Ronald H. Van Der Voort