Patents by Inventor Sheryl L. Henderson

Sheryl L. Henderson 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).

  • Gas and oxygen carrying lipid vesicles
    Patent number: 5219538
    Abstract: The present invention relates to the production of lipid vesicles having a moderately volatile material such as a perfluorocarbon or a silicone oil encapsulated therein. In another aspect, lipid vesicles having a gas-filled center or core are made. The lipid vesicles having gas-filled central core are made by dehydrating vesicles having the moderately volatile liquid encapsulated in the central core. This drives off the water first, allowing the moderately volatile liquid to stabilize the vesicle structure as it dries, finally forming a central void which can refract light. The preferred vesicles of the invention are paucilamellar vesicles.
    Type: Grant
    Filed: March 1, 1991
    Date of Patent: June 15, 1993
    Assignee: Micro-Pak, Inc.
    Inventors: Sheryl L. Henderson, Donald F. H. Wallach, Rajiv Mathur
  • Microbial .DELTA.1-dehydrogenation process using a scavenger of toxic oxygen
    Patent number: 4749649
    Abstract: A process for converting 1,2-saturated 3-keto steroids to 1,2-dehydro steroids which are useful steroid intermediates. The process involves exposing the substrate to steroid-1-dehydrogenase activity in the presence of an added electron carrier and one or more added scavengers of a toxic oxygen species.
    Type: Grant
    Filed: May 16, 1983
    Date of Patent: June 7, 1988
    Assignee: The Upjohn Company
    Inventors: Timothy W. Evans, Leo A. Kominek, Holly J. Wolf, Sheryl L. Henderson