Patents by Inventor Linda P. Reinhardt

Linda P. Reinhardt 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).

  • Process of producing an active agent delivery device
    Patent number: 5071645
    Abstract: An active agent delivery device comprises (a) microporous material comprising a matrix consisting essentially of linear ultrahigh molecular weight polyolefin, a large proportion of finely divided water-insoluble filler of which at least about 50 percent by weight is siliceous, and interconnecting pores; and (b) a releasable active agent or precursor thereof associated with at least a portion of the filler.
    Type: Grant
    Filed: March 20, 1991
    Date of Patent: December 10, 1991
    Assignee: PPG Industries, Inc.
    Inventors: Harlan B. Johnson, Linda P. Reinhardt
  • Active agent delivery device
    Patent number: 4959208
    Abstract: An active agent delivery device comprises (a) microporous material comprising a matrix consisting essentially of linear ultrahigh molecular weight polyolefin, a large proportion of finely divided water-insoluble filler of which at least about 50 percent by weight is siliceous, and interconnecting pores; and (b) a releasable active agent or precursor thereof associated with at least a portion of the filler.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: September 25, 1990
    Assignee: PPG Industries, Inc.
    Inventors: Paritosh M. Chakrabarti, John M. Denison, Harlan B. Johnson, Malcolm Korach, Dennis D. Leatherman, Linda P. Reinhardt, Richard A. Schwarz, Robert B. Simmons
  • Artificial flower
    Patent number: 4957787
    Abstract: An artificial flower comprises at least one petal of microporous material which comprises a matrix consisting essentially of linear ultrahigh molecular weight polyolefin, a large proportion of finely divided water-insoluble siliceous filler, and interconnecting pores, and which microporous material has regions of stretch-induced molecularly oriented polymer in the matrix.
    Type: Grant
    Filed: September 27, 1988
    Date of Patent: September 18, 1990
    Assignee: PPG Industries, Inc.
    Inventors: Linda P. Reinhardt, W. Brent Burleson