Patents by Inventor Doretta Chang

Doretta Chang 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).

  • Pacifier retaining device
    Patent number: 6312449
    Abstract: A pacifier retaining device for holding a pacifier on a child so that the child does not lose the pacifier. The pacifier retaining device includes a first strap for encircling the torso of a user. A second strap connects a pacifier to the first strap. The second strap has a first end and a second end. A pacifier is coupled to the second strap. A connecting device rotatably connects the first strap to the second strap. The connecting device comprises a female portion and a male portion. The second end of the second strap is coupled to the male portion. The female portion is coupled to the first strap.
    Type: Grant
    Filed: January 31, 2000
    Date of Patent: November 6, 2001
    Inventors: Albert Chang, Doretta Chang