Patents by Inventor David Plehn-Citrone

David Plehn-Citrone 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).

  • Hand tool
    Patent number: 10730176
    Abstract: A hand tool comprises a handle having a central area having a lower end and an upper end and a pair of outwardly extending arms at the upper end, and a shaft having a fixed end connected to the lower end of the central area and an open opposite end for receiving a tool bit. A ratchet mechanism is formed between the shaft and the central area to control rotational movement of the shaft. A ring is releasably mounted on the shaft and capable of limited movement relative to the shaft.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: August 4, 2020
    Inventor: David Plehn-Citrone
  • HAND TOOL
    Publication number: 20180222021
    Abstract: A hand tool comprises a handle having a central area having a lower end and an upper end and a pair of outwardly extending arms at the upper end, and a shaft having a fixed end connected to the lower end of the central area and an open opposite end for receiving a tool bit. A ratchet mechanism is formed between the shaft and the central area to control rotational movement of the shaft. A ring is releasably mounted on the shaft and capable of limited movement relative to the shaft.
    Type: Application
    Filed: February 2, 2018
    Publication date: August 9, 2018
    Inventor: David Plehn-Citrone
  • Tool with configured handle
    Patent number: D679165
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: April 2, 2013
    Inventor: David Plehn-Citrone