Patents by Inventor Howard Ketelson

Howard Ketelson 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).

  • Inorganic nanopartices to modify the viscosity and physical properties of ophthalmic and otic compositions
    Publication number: 20050002970
    Abstract: The use of nanoparticles of inorganic materials (e.g., synthetic smectite clays) in ophthalmic and otic pharmaceutical nanoparticles are utilized to modify the rheological properties of the compositions, so as to enhance the viscosity, flow characteristics, lubricity or other characteristics of the compositions. The invention is particularly directed to the provision of lubricant compositions for the eye and ear, and to enhancement of the viscosity, shear thinning and lubricity of artificial tear compositions.
    Type: Application
    Filed: December 20, 2002
    Publication date: January 6, 2005
    Inventors: Howard Ketelson, David Meadows
  • Cleaning formulation for optical surfaces
    Publication number: 20040242451
    Abstract: A cleaning formulation for removing materials from a surface (e.g., an optical surface, a metal surface and the like), the cleaning formulation comprising from about 0.5 to about 60 weight percent of a compound derived from urea and a phosphorus-containing acid, together with a carrier therefor. A method for removing fouling materials from a surface is also described. The cleaning formulation may be used to remove materials, inter alia, from optical radiation surfaces, optical lens surfaces (e.g., a contact lens) and the like.
    Type: Application
    Filed: August 27, 2003
    Publication date: December 2, 2004
    Applicant: Trojan Technologies Inc.
    Inventors: Howard A. Ketelson, Michael A. Brook
  • Cleaning formulation and method of cleaning a surface
    Publication number: 20040048769
    Abstract: A cleaning formulation comprising a cleaning agent, a particulate clay material and an aqueous carrier. The formulation has a pH less than about 4.0 and is characterized by at least a 90% reduction in viscosity at 25° C. at a shear rate of up to about 0.10 s−1. The cleaning formulation is thixotropic and has a highly desirable combination of acid stability, temperature stability, electrolyte stability and ultraviolet radiation stability.
    Type: Application
    Filed: September 11, 2003
    Publication date: March 11, 2004
    Applicant: Trojan Technologies Inc.
    Inventor: Howard A. Ketelson
  • Urea phosphate cleaning formulation and method of cleaning a surface
    Patent number: 6635613
    Abstract: A cleaning formulation comprising a cleaning agent, a particulate clay material and an aqueous carrier. The formulation has a pH less than about 4.0 and is characterized by at least a 90% reduction in viscosity at 25° C. at a shear rate of up to about 0.10 s−1. The cleaning formulation is thixotropic and has a highly desirable combination of acid stability, temperature stability, electrolyte stability and ultraviolet radiation stability.
    Type: Grant
    Filed: September 19, 2000
    Date of Patent: October 21, 2003
    Assignee: Trojan Technologies, Inc.
    Inventor: Howard A. Ketelson
  • Cleaning formulation for optical surfaces
    Publication number: 20020039984
    Abstract: A cleaning formulation for removing materials from a surface (e.g., an optical surface, a metal surface and the like), the cleaning formulation comprising from about 0.5 to about 60 weight percent of a compound derived from urea and a phosphorus-containing acid, together with a carrier therefor. A method for removing fouling materials from a surface is also described. The cleaning formulation may be used to remove materials, inter alia, from optical radiation surfaces, optical lens surfaces (e.g., a contact lens) and the like.
    Type: Application
    Filed: May 25, 2001
    Publication date: April 4, 2002
    Inventors: Howard A. Ketelson, Michael A. Brook