Patents by Inventor Jeff Wen

Jeff Wen 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).

  • Process for cleaning aquarium tank walls
    Patent number: 6206978
    Abstract: A process for using a magnetic aquarium tank wall cleaning tool for cleaning the inner surface of an aquarium having one or more curved interior vertical corners. Magnetic cleaners for aquariums eliminate the need for reaching into the tank or manipulating a cleaner with a long handle. The magnetic tank wall cleaning tool has at least one edge which is curved. The radius of curvature is no more than the radius of curvature of the inner surface of the tank to be cleaned. The cleaner can be manipulated from one flat surface around a curved interior corner by moving the handle horizontally around the corner.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: March 27, 2001
    Assignee: Roger Williams General Hospital
    Inventor: Jeff Wen Chieh Tsui
  • Breathable and compressible laminated cloth
    Patent number: 6171679
    Abstract: A laminated cloth is composed of a first cloth sheet and a second cloth sheet. The first cloth sheet has a knitcloth layer and a hairy layer of fiber and extending from one side of the knitcloth layer. The second cloth sheet is adhered to the hairy layer which is breathable and compressible.
    Type: Grant
    Filed: April 1, 1998
    Date of Patent: January 9, 2001
    Inventor: Jeff Wen