Patents by Inventor Fur-Jiang Leu

Fur-Jiang Leu 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).

  • Centrifuge tube with a built-in small tubing for separation following density gradients centrifugation
    Patent number: 5866071
    Abstract: A new type of centrifuge tube convenient for separation after density gradients centrifugation is invented. The inner bottom of the centrifuge tube is in a funnel shape, and an orifice is located at the narrowest place of the funnel neck. The orifice connects to a small tube, which is built inside the centrifuge tube wall and spanning the entire length of the centrifuge tube. The centrifuge tube can be used either as a centrifuge tube or a separation funnel. Such a tube not only saves time but also improves the efficiency of separation after density gradients centrifugation, because the built-in small tube is capable of performing separation by means of siphonic effect.
    Type: Grant
    Filed: March 6, 1996
    Date of Patent: February 2, 1999
    Assignee: National Science Council
    Inventor: Fur-Jiang Leu