Patents by Inventor Seng Chin Teoh

Seng Chin Teoh 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).

  • Double-donnable glove
    Patent number: 8187684
    Abstract: A polychloroprene article comprises a polymer which is more readily chlorinatable that polychloroprene. A method of making the article comprises forming the article from an aqueous dispersion or solution of polychloroprene, characterized in that one or more polymers which are more readily chlorinatable than polychloroprene are included in said dispersion or solution. Preferably, the article is a polychloroprene glove containing carboxylated nitrile rubber, carboxylated styrene butadiene or polyisoprene.
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: May 29, 2012
    Assignee: Regent Medical Limited
    Inventors: Seng Chin Teoh, Peter Wynne Williams
  • Method of making a non-tacky, powder-free neoprene article like a glove or condom
    Patent number: 7179415
    Abstract: A method of making a non-tacky, powder-free neoprene article, preferably by dipping a former in a neoprene or neoprene copolymer latex, comprises the use of one or more anionic anti-tack agents in order to prevent any significant development of tack for a period of up to at least seven days when the article is stored at 70° C. or at least 90 days when stored at 45° C. Preferably, the article is a glove or condom further comprising a layer of hydrogel.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: February 20, 2007
    Assignee: Regent Medical Limited
    Inventors: Seng Chin Teoh, Seong Fong Chen
  • Neoprene glove
    Publication number: 20040096686
    Abstract: A method of making a non-tacky, powder-free neoprene article, preferably by dipping a former in a neoprene or neoprene copolymer latex, comprises the use of one or more anionic anti-tack agents in order to prevent any significant development of tack for a period of up to at least seven days when the article is stored at 70° C. or at least 90 days when stored at 45° C. Preferably, the article is a glove or condom further comprising a layer of hydrogel.
    Type: Application
    Filed: July 7, 2003
    Publication date: May 20, 2004
    Inventors: Seng Chin Teoh, Seong Fong Chen
  • Elastomeric gloves
    Patent number: 6566435
    Abstract: An elastomeric carboxylated nitirle rubber glove has a stress retention, after six minutes at 100% extension, of rom 50% to 70%. It is made using prevulcanized carboxylated nitrile rubber latex with 2 to 6% by weight methacrylic acid equivalent.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: May 20, 2003
    Assignee: LRC Products Limited
    Inventors: Seng Chin Teoh, Seong Fong Chen