Patents by Inventor Gilbert W. Smith

Gilbert W. Smith 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).

  • Langmuir blodgett films
    Patent number: 4876150
    Abstract: Langmuir-Blodgett(LB) films of ABAB structure in which the compounds A and B are different and contain complementary groups which result in non-centrosymmetry of the layer plane. Three types of structures are described: (1) in which A and B have similar backbones with complementary chromophore groups, (2) in which A and B have similar backbones with complementary functional groups, and (3) in which A and B have related functional groups but complementary backbones.
    Type: Grant
    Filed: April 20, 1987
    Date of Patent: October 24, 1989
    Assignee: The Secretary of State for Defence in Her Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventors: Gilbert W. Smith, Mervyn F. Daniel, John W. Barton, Norman M. Ratcliffe