Patents by Inventor William J. Sacher

William J. Sacher 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).

  • High refractive index fluid and melt mounting media
    Patent number: 4526711
    Abstract: Formulations for use as mounting media in microscopy and also useful as optical coupling materials for fibers and lens systems having a wide range of refractive index between 1.58 to 1.73 and exhibiting a range in viscosity from a very viscous fluid to a semi-solid resin or melt. The material is selected from brominated diphenyl oxides and modified or unmodified alpha-methylstyrene polymers. These materials can be employed individually or blended together with a stabilizer to provide a host of materials having different refractive indexes within said range and useful in various optical systems.
    Type: Grant
    Filed: September 9, 1983
    Date of Patent: July 2, 1985
    Assignee: R. P. Cargille Laboratories, Inc.
    Inventors: Robert L. Sacher, William J. Sacher
  • Immersion oil for fluorescence microscopy
    Patent number: 4491533
    Abstract: A heavy mineral oil having a relatively high viscosity is employed as an immersion oil for use in fluorescence microscopy. The oil exhibits no auto fluorescent characteristics while exhibiting a compatible refractive index to allow the same to be used with condenser/objective lens systems in fluorescence microscopy.
    Type: Grant
    Filed: September 8, 1983
    Date of Patent: January 1, 1985
    Assignee: R. P. Cargille Laboratories, Inc.
    Inventors: Robert L. Sacher, William J. Sacher