Patents by Inventor Christopher J. Petersen

Christopher J. Petersen 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).

  • Membrane filtration apparatus
    Patent number: 5824217
    Abstract: A filtration apparatus is provided which is formed from multilayer presealed elements and monolayer elements that are insert molded together. The device is provided with a feed port, a filtrate port and, optionally, a retentate port. The sealing configuration of the presealed elements and the seal provided by the insert molding step effect a seal configuration that causes a feed liquid to be filtered to form a filtrate such that the filtrate is not mixed with either the feed or a retentate.
    Type: Grant
    Filed: March 27, 1996
    Date of Patent: October 20, 1998
    Assignee: Millipore Corporation
    Inventors: Steven R. Pearl, Wayne S. Merrill, Christopher J. Petersen