Patents by Inventor Henry Whitfield Ott

Henry Whitfield Ott 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).

  • Apparatus for operating gaseous discharge lamps on direct current from a source of alternating current
    Patent number: 4004184
    Abstract: A system providing flickerless operation of a gaseous discharge lamp utilizes a DC voltage applied across the lamp electrodes. Low starting voltage and power consumption are obtained by applying an AC voltage across a grounded conductor member and adjacent lamp electrodes. This is a division of application Ser. No. 443,825, filed Feb. 19, 1974, now U.S. Pat. No. 3,890,540.
    Type: Grant
    Filed: June 6, 1975
    Date of Patent: January 18, 1977
    Assignee: John Ott Laboratories, Inc.
    Inventor: Henry Whitfield Ott