Patents by Inventor John K. Carpenter

John K. Carpenter 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).

  • Grab sampler
    Patent number: 5587539
    Abstract: There is disclosed a novel sampling device. This invention is capable of taking a grab sample when a predetermined level of discharge like water has occurred. It is designed to be easily moved and set up.
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: December 24, 1996
    Inventor: John K. Carpenter