Patents by Inventor John Banu

John Banu 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 wall sampler
    Patent number: 5341693
    Abstract: A water sampler of the general type has a substantially rigid body with two end portions with openings for receiving a water sample. Two end plugs close off the openings, for entrapping a water sample inside the body. The improvement comprises a flexible liner inside the rigid body. The flexible liner receives the water sample such that any direct contact between the water sample and the rigid body is avoided.
    Type: Grant
    Filed: January 14, 1993
    Date of Patent: August 30, 1994
    Assignee: Ocean Test Equipment, Inc.
    Inventor: John Banu