Patents

Motion Picture Patents

Patents are a very valuable source of information to the film restorer. Many patents are available online both at the US Patent Office and the European Patent Office . The European Patent Office website is extremely easy to use and enables you to search, view and download many patents.

The Kodak Ltd Patent No: GB348372 May 13 1929

Improvements in or relating to the Tinting of Combination Kinematograph and Sound Recording Films

George Albert Smith's Kinemacolor Patent Number: GB190626671 24th November 1906

Improvements in or relating to Kinematograph Apparatus for the Production of Coloured Pictures

Willi G Engel's Light Valve Patent US3454328 19th January 1966 for the Bell and Howell Co

http://www.brianpritchard.com/US3454328A1.pdf

These files appears by kind permission of:

The Director

European Patent Office

EPA/EPO/OEB

80298 Munchen

Deutschland