Patents by Inventor LeRoy L. Richer

LeRoy L. Richer 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).

  • Liposome targeting using receptor specific ligands
    Patent number: 5258499
    Abstract: Delivery vehicle formulations comprise active agents encapsulated within liposomal vesicles to which are attached protein hormones (ligands) such as interleukin-2. The ligands are capable of showing affinity for specific cell receptors resulting in delivery of the encapsulated active agent to target cells, enabling delivery of active agents to particular cell populations in the treatment of conditions such as immune system disorders.
    Type: Grant
    Filed: March 10, 1992
    Date of Patent: November 2, 1993
    Assignee: Vestar, Inc.
    Inventors: Paula J. Konigsberg, Leroy L. Richer, Paul G. Schmidt, Joseph A. Uliana
  • Method for inhibiting post-surgical adhesion formation by the topical administration of non-steroidal anti-inflammatory drug
    Patent number: 4937254
    Abstract: Postsurgical adhesion formation is inhibited by the topical administration to the site of surgical trauma of a non-steroidal anti-inflammatory drug, preferably ibuprofen, suprofen, or tolmetin.
    Type: Grant
    Filed: January 26, 1988
    Date of Patent: June 26, 1990
    Assignee: Ethicon, Inc.
    Inventors: Warren D. Sheffield, Douglas B. Johns, Shalaby W. Shalaby, Gere S. diZerega, LeRoy L. Richer
  • Liposomal vesicles for intraperitoneal administration of therapeutic agents
    Patent number: 4877619
    Abstract: Liposomal multilamellar vesicles suitable for sustained delivery of therapeutic agents to the peritoneal cavity and a method for their formulation are described. The liposomal multilamellar vesicles comprise a phosphatidylcholine having fatty acid side chains of from 12 to 24 carbons in length and have a size of from about 1 micron to about 15 microns in diameter.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: October 31, 1989
    Assignee: Vestar, Inc.
    Inventor: LeRoy L. Richer