Patents by Inventor Steven Ferranti

Steven Ferranti 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).

  • Slurry Composition And Method For Polishing Organic Polymer-Based Ophthalmic Substrates
    Publication number: 20070190910
    Abstract: The present invention provides a slurry composition and method for polishing organic polymer-based ophthalmic substrates. The slurry composition according to the invention includes an aqueous dispersion of abrasive particles and a pyrrolidone compound. The abrasive particles can be alumina, zirconia, silica, titania or combinations of the foregoing. Slurry compositions according to the invention can be used to polish all types of organic polymer-based ophthalmic substrates, but are particularly useful for polishing organic polymer-based ophthalmic substrates having an index of refraction greater than 1.498 because they remove such materials at a greater efficiency than conventional slurry compositions without detrimentally affecting the quality of the resulting surface.
    Type: Application
    Filed: March 22, 2007
    Publication date: August 16, 2007
    Applicant: FERRO CORPORATION
    Inventor: Steven Ferranti
  • Slurry composition and method for polishing organic polymer-based ophthalmic substrates
    Publication number: 20060228999
    Abstract: The present invention provides a slurry composition and method for polishing organic polymer-based ophthalmic substrates. The slurry composition according to the invention includes an aqueous dispersion of abrasive particles and a pyrrolidone compound. The abrasive particles can be alumina, zirconia, silica, titania or combinations of the foregoing. Slurry compositions according to the invention can be used to polish all types of organic polymer-based ophthalmic substrates, but are particularly useful for polishing organic polymer-based ophthalmic substrates having an index of refraction greater than 1.498 because they remove such materials at a greater efficiency than conventional slurry compositions without detrimentally affecting the quality of the resulting surface.
    Type: Application
    Filed: April 8, 2005
    Publication date: October 12, 2006
    Applicant: Ferro Corporation
    Inventor: Steven Ferranti