Patents by Inventor Yen Kong Woo

Yen Kong Woo 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).

  • Fragrance impregnated fabric
    Patent number: 4514461
    Abstract: This invention is a fabric impregnated with micron-size bubbles in the form of fragile capsules within the interstices between the strands inside the body of the fabric by spraying the capsules in combination with a liquid binder and then putting the fabric through a set of rollers, the invention being that the micron-size bubbles are so bonded completely within the interior of the fabric that when rubbed, certain of the bubbles break and release the fragrance from the broken capsules, none of the capsules being on the outside of the fabric surface.
    Type: Grant
    Filed: August 10, 1981
    Date of Patent: April 30, 1985
    Inventor: Yen-Kong Woo
  • Paint roller device having juxta-posed rollers
    Patent number: 4000537
    Abstract: A pair of juxta-posed rotatably mounted adjustable width rollers including a lead roller and a drip-catching follower roller to the axles of which a handle is pivotally attached for actuating the pair of rollers from a multiplicity of handle positions to apply the paint therewith to a surface.
    Type: Grant
    Filed: October 23, 1975
    Date of Patent: January 4, 1977
    Inventor: Yen Kong Woo
  • Detachably connected acupuncture needles
    Patent number: 3957053
    Abstract: At least two juxtaposed acupuncture needles for penetrating the muscles of a body, and a convoluted electrical conductor detachably bridging the heads of said juxtaposed needles. Additional needles may be positioned within the convolutions of the conductor.
    Type: Grant
    Filed: March 3, 1975
    Date of Patent: May 18, 1976
    Inventor: Yen Kong Woo
  • Acupuncture needles and holder
    Patent number: 3943932
    Abstract: A plurality of relatively adjustable acupuncture needles including a holder in which any selected needle may be removably mounted for operative use.
    Type: Grant
    Filed: January 17, 1975
    Date of Patent: March 16, 1976
    Inventor: Yen Kong Woo
  • Capsule impregnated fabric
    Patent number: RE32713
    Abstract: This invention is a fabric impregnated with micron-size bubbles in the form of fragile capsules within the interstices between the strands inside the body of the fabric by spraying the capsules in combination with a liquid binder and then putting the fabric through a set of rollers, the invention being that the micron-size bubbles are so bonded completely within the interior of the fabric that when rubbed, certain of the bubbles break and release the fragrance from the broken capsules, none of the capsules being on the outside of the fabric surface.
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: July 12, 1988
    Inventor: Yen-Kong Woo