Patents by Inventor Bart Dilissen

Bart Dilissen 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).

  • Discharge lamp having discharge space with specific fill concentration
    Patent number: 6538384
    Abstract: The invention relates to a tubular discharge lamp (1) with a wall (4) which is transparent to UV-radiation. The tube (2) encloses a discharge space (5) having an internal diameter D. The discharge space (5) comprises a filling of mercury metal vapor in a concentration range of 0.4-2.5 mg/cm3. A reduction of both the diameter D from about 22 mm down to about 13.5 mm and the average mercury concentration from about 1.7 mg/cm3 down to about 0.8 mg/cm3 leads to an increase in the effective germicidal UV-output of the lamp (1) of about 35%.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: March 25, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Herman Johannus Gertruda Gielen, Koen Leo Costantia Lenaerts, Bart Dilissen
  • Discharge lamp
    Publication number: 20020033673
    Abstract: The invention relates to a tubular discharge lamp (1) with a wall (4) which is transparent to UV-radiation. The tube (2) encloses a discharge space (5) having an internal diameter D. The discharge space (5) comprises a filling of mercury metal vapor in a concentration range of 0.4-2.5 mg/cm3. A reduction of both the diameter D from about 22 mm down to about 13.5 mm and the average mercury concentration from about 1.7 mg/cm3 down to about 0.8 mg/cm3 leads to an increase in the effective germicidal UV-output of the lamp (1) of about 35%.
    Type: Application
    Filed: March 26, 2001
    Publication date: March 21, 2002
    Inventors: Herman Johannus Gertruda Gielen, Koen Leo Costantia Lenaerts, Bart Dilissen