Patents by Inventor Leo Liang-Tin Lee

Leo Liang-Tin Lee 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).

  • Publication number: 20080072917
    Abstract: A smoking tool includes a pipe body, a holder and a control valve. The pipe body has a top opening, a bottom wall, and a smoke storage chamber for containing a filtering agent. The holder, which is detachably supported at the pipe body, includes a cup for holding a predetermined amount of herb scraps such as tobacco to be burnt therein. The control valve is operatively provided at a bottom portion of the pipe body for discharging the filtering agent from the smoke storage chamber in a controlling manner, wherein when the control valve is opened for discharging the filtering agent from the smoke storage chamber to create a suction effect therewithin at the same time that the herb scraps is burnt to generate smoke, the smoke is sucked into the smoke storage chamber through the smoke guiding tube and is filtered by the filtering agent.
    Type: Application
    Filed: September 21, 2006
    Publication date: March 27, 2008
    Inventor: Leo Liang-Tin Lee