Patents by Inventor Alexander Lebovits

Alexander Lebovits 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).

  • Anti-fouling castable polymers and anti-fouling polyurethanes and similar materials
    Patent number: 5194504
    Abstract: This invention relates to polymeric materials formable by casting at room mperature and having antifouling material incorporated therein. It is the reaction product of a) with polyether polyols and methylene bis (4-cyclohexyl) isocyanate, where a) is a polymer composition which is the reaction product of the distilled tributyltin oxide with a copolymer of either methyl methacrylate or methyl acrylate and, with either methacrylic acid or acrylic acid in such proportion that four (4) percent of the carbonyl groups remain unreacted.
    Type: Grant
    Filed: January 16, 1991
    Date of Patent: March 16, 1993
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Alexander Lebovits, William L. Yeager, William B. Mercer, Timothy L. Dapp
  • Anti-fouling castable polymers and anti-fouling polyurethanes and similar materials
    Patent number: 4996261
    Abstract: This invention relates to polymeric materials formable by casting at room mperature and having antifouling materials incorporated therein. It is the reaction product of (a) with polyether polyols and methylene bis(4-cyclohexyl) isocyanate, where (a) is a polymeric composition which is the reaction product of a distilled tri-butyltin oxide with a copolymer of either methyl methacrylate of methyl acrylate and, with methacrylic acid or acrylic acid in such proportions that 4% of the carbonyl groups remain unreacted.
    Type: Grant
    Filed: September 1, 1988
    Date of Patent: February 26, 1991
    Assignee: The United States of America as represented by the secretary of the Navy
    Inventors: Alexander Lebovits, William L. Yaeger, William B. Mercer, Timothy L. Dapp