Patents by Inventor Theodor Rottwinkel

Theodor Rottwinkel 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 alloy sheet
    Patent number: 7267734
    Abstract: An aluminium alloy sheet suitable for use as lithographic plate support, wherein the aluminium alloy has the composition (in wt. %): Si 0.05-0.20 preferably 0.06-0.14; Fe 0.15-0.40 preferably at least 0.2; others up to 0.05 each and up to 0.15 total; Al balance, wherein the aluminium alloy sheet is non-grain refined.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: September 11, 2007
    Assignee: Novelis Inc.
    Inventors: Paul Vincent Evans, Theodor Rottwinkel, Jeremy Mark Brown
  • Aluminium alloy for lithographic sheet
    Publication number: 20060254680
    Abstract: The invention discloses an Al alloy suitable for processing into a lithographic sheet, the alloy having a composition in wt %: Mg 0.05 to 0.30, Mn 0.05 to 0.25, Fe 0.11 to 0.40, Si up to 0.25, Ti up to 0.03, B up to 0.01, Cu up to 0.01, Cr up to 0.03, Zn up to 0.15, unavoidable impurities up to 0.05 each, 0.15 total, Al balance. Also disclosed is a method of processing the Al alloy.
    Type: Application
    Filed: July 14, 2006
    Publication date: November 16, 2006
    Inventors: Theodor Rottwinkel, David Wright, Richard Hamerton, Jeremy Brown, John Ward
  • Aluminum alloy sheet
    Publication number: 20040108021
    Abstract: An aluminium alloy sheet suitable for use as lithographic plate support, wherein the aluminium alloy has the composition (in wt. %): Si 0.05-0.20 preferably 0.06-0.14; Fe 0.15-0.40 preferably at least 0.2; others up to 0.05 each and up to 0.15 total; Al balance, wherein the aluminium alloy sheet is non-grain refined.
    Type: Application
    Filed: December 1, 2003
    Publication date: June 10, 2004
    Inventors: Paul Vincent Evans, Theodor Rottwinkel, Jeremy Mark Brown
  • Aluminium alloy for lithographic sheet
    Publication number: 20040047759
    Abstract: The invention discloses an Al alloy suitable for processing into a lithographic sheet, the alloy having a composition in wt %: Mg 0.05 to 0.30, Mn 0.05 to 0.25, Fe 0.11 to 0.40, Si up to 0.25, Ti up to 0.03, B up to 0.01, Cu up to 0.01, Cr up to 0.03, Zn up to 0.15, unavoidable impurities up to 0.05 each, 0.15 total Al balance. Also disclosed is a method of processing the Al alloy.
    Type: Application
    Filed: October 8, 2003
    Publication date: March 11, 2004
    Inventors: Theodor Rottwinkel, David Skingley Wright, Richard Gary Hamerton, Jeremy Mark Brown, John Andrew Ward