Patents by Inventor Chin B. Lu

Chin B. Lu 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).

  • Wetting indicator for a diaper
    Patent number: 5395358
    Abstract: A wetting indicator for a diaper including a seat having an inclined surface and a slot, a sensor provided with a head portion and a blade portion extending from said head portion, a positive contact member disposed within said blade portion and being in communication with the perforations of said blade portion, a negative contact member disposed with said blade portion and being in communication with the perforations of said blade portion, a battery disposed within said head portion and having a positive electrode and a negative electrode, the positive electrode being connected with said positive contact member, and a music IC disposed within said head portion and electrically connected with the positive electrode of said battery and said negative contact member.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: March 7, 1995
    Inventor: Chin B. Lu