Patents by Inventor Eric R. Hungerman

Eric R. Hungerman 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).

  • Patent number: 6599410
    Abstract: The present invention involves a gel strip carrier module for a gel strip that reduces the handling of the gel strip and the hands-on-time during preparation of the gel strip for isoelectric focusing. The gel carrier module includes a gel strip chamber that serves as both a rehydration and focusing chamber, and allows the sample to be applied either throughout the entire gel or in a defined zone. The gel carrier module includes a pair of electrodes near opposite ends of the chamber that the gel strip rests on, gel side facing down. The gel carrier module includes a cover with hold-down blocks or pressure blocks to assure reliable, light contact between the gel and the electrodes during focusing. A rehydration buffer is added into the chamber, and the gel strip is gently placed in the chamber, gel side down, for rehydration.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: July 29, 2003
    Assignee: Amersham Biosciences (SF) Corp
    Inventors: Urs Steiner, Mohammed Rezaul Islam, Eric R. Hungerman
  • Patent number: 6113766
    Abstract: The present invention involves a gel strip carrier module for a gel strip that reduces the handling of the gel strip and the hands-on-time during preparation of the gel strip for isoelectric focusing. The gel carrier module includes a gel strip chamber that serves as both a rehydration and focusing chamber, and allows the sample to be applied either throughout the entire gel or in a defined zone. The gel carrier module includes a pair of electrodes near opposite ends of the chamber that the gel strip rests on, gel side facing down. The gel carrier module includes a cover with hold-down blocks or pressure blocks to assure reliable, light contact between the gel and the electrodes during focusing. A rehydration buffer is added into the chamber, and the gel strip is gently placed in the chamber, gel side down, for rehydration.
    Type: Grant
    Filed: June 9, 1998
    Date of Patent: September 5, 2000
    Assignee: Hoefer Pharmacia Biotech, Inc.
    Inventors: Urs Steiner, Mohammed Rezaul Islam, Eric R. Hungerman
  • Patent number: 5792332
    Abstract: An electrophoresis apparatus which overcomes the safety problems of the conventional apparatus by including a screen for preventing the operator from contacting the exposed surface of the gel chamber to avoid burns or electric shock. Shock due to contact with buffer solutions is also avoided by use of a power engaging mechanism which prevents the operator from accessing either of the buffer reservoirs when one or both of the buffer solutions are connected to the power source. The power engaging mechanism ensures that it is only possible to connect the buffer solutions to the power source when both reservoir covers are in their closed positions.
    Type: Grant
    Filed: July 24, 1996
    Date of Patent: August 11, 1998
    Assignee: Hoefer Pharmacia Biotech, Inc.
    Inventors: Allen L. Montecino, Eric G. Coates, Eric R. Hungerman
  • Patent number: 4929329
    Abstract: An electrophoresis cassette system which when used with a detector can automatically perform an analysis of radio-labelled molecules. The cassette system is easily assembled and may be reused. The cassette includes a new type of side spacer which incorporates nylon monofilament and which includes a buffer zone for increased accuracy. A new clamp and other improvements further enhance the accuracy of the cassette and reduce variations in the electric field at the bottom and sides of the cell to provide increased accuracy. A new cassette filling system is shown for use with the cassette which permits rapid filling of a cassette with gel material while providing a more uniform gel layer than was previously attainable.
    Type: Grant
    Filed: December 2, 1987
    Date of Patent: May 29, 1990
    Assignee: EG&G, Inc.
    Inventors: Philip C. Danby, Hal C. Danby, Eric R. Hungerman