Patents by Inventor Frederic Spiess

Frederic Spiess 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).

  • Electrochemical double layer capacitor having carbon powder electrodes
    Patent number: 6813139
    Abstract: A method of making a double layer capacitor, in accordance with one embodiment, includes coupling a top collector disk to a proximal end of a double layer capacitor electrode assembly; electrically coupling a bottom collector disk to a distal end; heating a can; inserting the double layer capacitor electrode assembly into the can; cooling the can, wherein a peripheral edge of the bottom collector disk is coupled to the can as the diameter of the can is decreased; forming a bead around an exterior of the can; heating a lid; placing a concave structure of the lid in juxtaposition with a convex structure on the top collector disk; cooling the lid, wherein the concave structure is coupled to the convex structure as the diameter of the can is decreased; creating a seal between the lid and the can; and placing an electrolyte solution into the electrode assembly.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: November 2, 2004
    Assignee: Maxwell Technologies, Inc.
    Inventors: Priya Bendale, Manuel R. Malay, John M. Dispennette, Chenniah Nanjundiah, Frederic Spiess
  • Electrochemical double layer capacitor having carbon powder electrodes
    Publication number: 20030086239
    Abstract: A method of making a double layer capacitor, in accordance with one embodiment, includes coupling a top collector disk to a proximal end of a double layer capacitor electrode assembly; electrically coupling a bottom collector disk to a distal end; heating a can; inserting the double layer capacitor electrode assembly into the can; cooling the can, wherein a peripheral edge of the bottom collector disk is coupled to the can as the diameter of the can is decreased; forming a bead around an exterior of the can; heating a lid; placing a concave structure of the lid in juxtaposition with a convex structure on the top collector disk; cooling the lid, wherein the concave structure is coupled to the convex structure as the diameter of the can is decreased; creating a seal between the lid and the can; and placing an electrolyte solution into the electrode assembly.
    Type: Application
    Filed: May 29, 2002
    Publication date: May 8, 2003
    Applicant: Maxwell Electronic Components Group, Inc., a Delaware Corporation
    Inventors: Priya Bendale, Manuel R. Malay, John M. Dispennette, Chenniah Nanjundiah, Frederic Spiess