Patents by Inventor Walter Carlton Theodore Cholowski

Walter Carlton Theodore Cholowski 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).

  • Lubricious coatings for substrates
    Publication number: 20040157073
    Abstract: The invention provides methods and kits to form water swellable gel coatings, preferably lubricious coatings, on substrates, and coated substrates thus formed. The coatings contain one or more antimicrobial metals formed with atomic disorder, together with one or more antimicrobial metals formed with atomic disorder such that the coatings provide an antimicrobial and anti-inflammatory effect when wet. The invention also provides a method to produce metal powders by sputtering a coating onto a moving surface, and then scraping the coating with one or more scrapers to produce the metal powder. The method is particularly useful for producing large amounts of nanocrystalline antimicrobial metal powders formed with atomic disorder, useful in the water swellable gel coatings of this invention.
    Type: Application
    Filed: February 5, 2004
    Publication date: August 12, 2004
    Applicant: Nucryst Pharmaceuticals Corp., a Alberta, Canada corporation
    Inventors: Robert Edward Burrell, Hua Qing Yin, Antony George Naylor, Peter Howard Moxham, Walter Carlton Theodore Cholowski, Leonard Salvin Bowlby, David James Field
  • Lubricious coatings for substrates
    Patent number: 6723350
    Abstract: The invention provides methods and kits to form water swellable gel coatings, preferably lubricious coatings, on substrates, and coated substrates thus formed. The coatings contain one or more antimicrobial metals formed with atomic disorder, together with one or more antimicrobial metals formed with atomic disorder such that the coatings provide an antimicrobial and anti-inflammatory effect when wet. The invention also provides a method to produce metal powders by sputtering a coating onto a moving surface, and then scraping the coating with one or more scrapers to produce the metal powder. The method is particularly useful for producing large amounts of nanocrystalline antimicrobial metal powders formed with atomic disorder, useful in the water swellable gel coatings of this invention.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: April 20, 2004
    Assignee: Nucryst Pharmaceuticals Corp.
    Inventors: Robert Edward Burrell, Hua Qing Yin, Antony George Naylor, Peter Howard Moxham, Walter Carlton Theodore Cholowski, Leonard Salvin Bowlby, David James Field
  • Lubricious coatings for substrates
    Publication number: 20020182265
    Abstract: The invention provides methods and kits to form water swellable gel coatings, preferably lubricious coatings, on substrates, and coated substrates thus formed. The coatings contain one or more antimicrobial metals formed with atomic disorder, together with one or more antimicrobial metals formed with atomic disorder such that the coatings provide an antimicrobial and anti-inflammatory effect when wet. The invention also provides a method to produce metal powders by sputtering a coating onto a moving surface, and then scraping the coating with one or more scrapers to produce the metal powder. The method is particularly useful for producing large amounts of nanocrystalline antimicrobial metal powders formed with atomic disorder, useful in the water swellable gel coatings of this invention.
    Type: Application
    Filed: April 23, 2002
    Publication date: December 5, 2002
    Inventors: Robert Edward Burrell, Hua Qing Yin, Antony George Naylor, Peter Howard Moxham, Walter Carlton Theodore Cholowski, Leonard Salvin Bowlby, David James Field