Patents by Inventor David Copeland

David Copeland 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).

  • Aluminum-copper clad member, method of manufacturing the same, and heat sink
    Publication number: 20010030039
    Abstract: An aluminum-copper clad member includes an aluminum-base member, a copper-base member and an insertion member made of pure aluminum or JIS A1xxx series aluminum alloy. The aluminum-base member and the copper-base member are clad via the insertion member. A heat sink includes a heat radiation portion made of aluminum-base material and provided with a plurality of tongue-like fins formed by skiving a surface layer of one side of the heat radiation portion and a thermal diffusion portion made of copper-base material and joined to the other side of the heat radiation portion via an insertion member made of pure aluminum or JIS A1xxx series aluminum alloy.
    Type: Application
    Filed: March 7, 2001
    Publication date: October 18, 2001
    Applicant: Showa Aluminum Corporation
    Inventors: David Copeland, Shunta Ushioda, Terukazu Yamauchi, Yasuhiro Osame, Tomoaki Yamanoi, Seiji Tasaki
  • Remote control
    Patent number: D502929
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: March 15, 2005
    Assignee: Select Comfort Corporation
    Inventors: David Copeland, Luis Pedraza, Michael Andreini
  • Headset
    Patent number: D443870
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: June 19, 2001
    Assignee: Telex Communications, Inc.
    Inventors: Michael Carpenter, Gregory Wright, Lars Runquist, David Copeland
  • Speaker enclosure
    Patent number: D401241
    Type: Grant
    Filed: July 16, 1996
    Date of Patent: November 17, 1998
    Assignee: Telex Communications, Inc.
    Inventors: Lars Runquist, David Copeland