Patents by Inventor Robert Paul Grasso

Robert Paul Grasso 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).

  • Nonlinear optical media of organosilicon crosslinked polymer
    Patent number: 5714304
    Abstract: Organosilicon polymers, including crosslinked polymers and crosslinkable prepolymers, of cyclic polysiloxanes, organic dyes, and, optionally, polyenes. The dyes include those with delocalized Pi electron systems linking electron donor groups and electron acceptor groups, and with at least two carbon--carbon double bond-containing pendant groups attached to at least two different sites from among the indicated delocalized Pi electron systems, donor groups, and acceptor groups.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: February 3, 1998
    Assignee: Hercules Incorporated
    Inventors: Wayne M. Gibbons, Robert Paul Grasso, Michael Kevin O'Brien, Paul Joseph Shannon, Shao-Tang Sun
  • Organosilicon polymers, and dyes, exhibiting nonlinear optical response
    Patent number: 5663308
    Abstract: Organosilicon polymers, including crosslinked polymers and crosslinkable prepolymers, of cyclic polysiloxane, organic dyes, and, optionally, polyenes. The dyes include those with delocalized Pi electron systems linking electron donor groups and electron acceptor groups, and with at least two carbon-carbon double bond-containing pendant groups attached to at least two different sites from among the indicated delocalized Pi electron systems, donor groups, and acceptor groups.
    Type: Grant
    Filed: February 7, 1994
    Date of Patent: September 2, 1997
    Assignee: Hercules Incorporated
    Inventors: Wayne Michael Gibbons, Robert Paul Grasso, Michael Kevin O'Brien, Paul Joseph Shannon, Shao-Tang Sun