Patents by Inventor Robert S. R. Parker

Robert S. R. Parker 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).

  • Coated articles and methods for the preparation thereof
    Patent number: 4844983
    Abstract: Glass or plastics substrates which in use are susceptible to misting and which have on at least one surface thereof an antimist coating. The coating is formed from a hydrophilic polymer which comprises a hydrophilic polyurethane which contains from 35 to 60% by weight of water when hydrated and which has a thickness of from 3 .mu.m to 50 .mu.m in its anhydrous state. Substrates in which the coating comprises a first layer formed from a polyurethane which contains from 0 to 35% by weight of water when hydrated and in which a second and subsequent layers are formed from a polyurethane which contains 60 to 90% by weight of water are also described. Methods for forming the coatings are also described.
    Type: Grant
    Filed: July 21, 1988
    Date of Patent: July 4, 1989
    Assignee: Smith and Nephew Associated Companies p.l.c.
    Inventors: Robert S. R. Parker, John G. B. Howes
  • Coated articles and methods for the preparation thereof
    Patent number: 4767671
    Abstract: Glass or plastics substrates which in use are susceptible to misting and which have on at least one surface thereof an antimist coating. The coating is formed from a hydrophilic polymer which comprises a hydrophilic polyurethane which contains from 35 to 60% by weight of water when hydrated and which has a thickness of from 3 .mu.m to 50 .mu.m in its anhydrous state. Substrates in which the coating comprises a first layer formed from a polyurethane which contains from 0 to 35% by weight of water when hydrated and in which a second and subsequent layers are formed from a polyurethane which contains 60 to 90% by weight of water are also described. Methods for forming the coatings are also described.
    Type: Grant
    Filed: April 15, 1987
    Date of Patent: August 30, 1988
    Assignee: Smith and Nephew Associated Companies, P.L.C.
    Inventors: Robert S. R. Parker, John G. B. Howes