Patents by Inventor Whei-Lan Teng

Whei-Lan Teng 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).

  • Controlling vitrification of plants using water absorbent polymer
    Patent number: 5389542
    Abstract: The present invention is directed to a method for reducing vitrification of a plant, especially lettuce, in a culture. Replacement of agar with water absorbent polymer successfully prevents vitrification without depressing organogenesis.
    Type: Grant
    Filed: November 4, 1992
    Date of Patent: February 14, 1995
    Assignee: Development Center for Biotechnology
    Inventors: Whei-Lan Teng, Yann-Jiun Liu, Tai-Sen Soong
  • Encapsulated structure for plant initiate material
    Patent number: 5250082
    Abstract: Disclosed is an encapsulated structure for plant initiate material. Plant initiate material is encapsulated in a waterproof membrane coating or waterproof capsule, onto which water swellable polymeric material particles are partly embedded. This structure provides the encapsulated plant initate material with sufficient pressure resistance to endure rough handling, and allows the plant initiate material to gerninate without difficulty since during imbibition the water swellable particles would swell after absorbing water and thus break the waterproof memebrane coating or the waterproof capsule.
    Type: Grant
    Filed: September 17, 1992
    Date of Patent: October 5, 1993
    Assignee: Development Center for Biotechnology
    Inventors: Whei-Lan Teng, Yann-Jiun Liu, Chiao-Po Lin, Tai-Sen Soong