Patents by Inventor Tan S. Chen

Tan S. Chen 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).

  • Patent number: 4735570
    Abstract: This invention relates to a false tooth attachment and in particular to one including a fixed member having a side plate and an engaging end, a front retainer made of a resilient metal wire bent into a shaped of an inverted letter V engageable with the engaging end, and a rear retainer formed of a resilient metal wire shaped into a letter U having two legs spaced apart by a distance equal to that between two recesses of the engaging end, whereby the false tooth can be easily removed from a supporting tooth simply by pushing a long leg of the front retainer.
    Type: Grant
    Filed: January 23, 1987
    Date of Patent: April 5, 1988
    Inventor: Tan S. Chen