Patents by Inventor Joseph E. Knapp

Joseph E. Knapp 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).

  • Patent number: 5326546
    Abstract: A method and apparatus for the generation, use, and disposal of chlorine dioxide is disclosed. A solid sodium chlorite composition having impurities, at least one of which is sodium hydroxide, is contacted with an agent to consume essentially all of the sodium hydroxide. Chlorine dioxide gas is then generated by contacting the resultant composition with chlorine in a humidified inert carrier gas. The resultant chlorine dioxide gas mixture may then be treated to remove chlorine gas present therein by contacting the same with soda-lime in particulate form. After using the chlorine dioxide gas mixture in the desired manner, chlorine dioxide present in the spent effluent gas may be substantially removed via the introduction of the effluent gas into an aqueous solution of sodium thiosulfate having a sufficient amount of an inorganic base to maintain the alkalinity of the solution during consumption of thiosulfate by chlorine dioxide.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: July 5, 1994
    Assignee: Iolab Corporation
    Inventors: Aaron Rosenblatt, David H. Rosenblatt, David Feldman, Joseph E. Knapp, Diane Battisti, Badie Morsi
  • Patent number: 5290524
    Abstract: A method and apparatus for the generation, use, and disposal of chlorine dioxide is disclosed. A solid sodium chlorite composition having impurities, at least one of which is sodium hydroxide, is contacted with an agent to consume essentially all of the sodium hydroxide. Chlorine dioxide gas is then generated by contacting the resultant composition with chlorine in a humidified inert carrier gas. The resultant chlorine dioxide gas mixture may then be treated to remove chlorine gas present therein by contacting the same with soda-lime in particulate form.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: March 1, 1994
    Assignee: Johnson & Johnson
    Inventors: Aaron Rosenblatt, David H. Rosenblatt, David Feldman, Joseph E. Knapp, Diane Battisti, Badie Morsi
  • Patent number: 5234678
    Abstract: A method and apparatus for the generation, use, and disposal of chlorine dioxide is disclosed. A solid sodium chlorite composition having impurities, at least one of which is sodium hydroxide, is contacted with an agent to consume essentially all of the sodium hydroxide. Chlorine dioxide gas is then generated by contacting the resultant composition with chlorine in a humidified inert carrier gas. The resultant chlorine dioxide gas mixture may then be treated to remove chlorine gas present therein by contacting the same with soda-lime in particulate form. After using the chlorine dioxide gas mixture in the desired manner, chlorine dioxide present in the spent effluent gas may be substantially removed via the introduction of the effluent gas into an aqueous solution of sodium thiosulfate having a sufficient amount of an inorganic base to maintain the alkalinity of the solution during consumption of thiosulfate by chlorine dioxide.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: August 10, 1993
    Assignee: Johnson & Johnson
    Inventors: Aaron Rosenblatt, David H. Rosenblatt, David Feldman, Joseph E. Knapp, Diane Battisti, Badie Morsi
  • Patent number: 5110580
    Abstract: A method and apparatus for the generation, use, and disposal of chlorine dioxide is disclosed. A solid sodium chlorite composition having impurities, at least one of which is sodium hydroxide, is contacted with an agent to consume essentially all of the sodium hydroxide. Chlorine dioxide gas is then generated by contacting the resultant composition with chlorine in a humidified inert carrier gas. The resultant chlorine dioxide gas mixture may then be treated to remove chlorine gas present therein by contacting the same with sodalime in particulate form. After using the chlorine dioxide gas mixture in the desired manner, chlorine dioxide present in the spent effluent gas may be substantially removed via the introduction of the effluent gas into an aqueous solution of sodium thiosulfate having a sufficient amount of an inorganic base to maintain the alkalinity of the solution during consumption of thiosulfate by chlorine dioxide.
    Type: Grant
    Filed: September 14, 1989
    Date of Patent: May 5, 1992
    Assignee: Iolab Corporation
    Inventors: Aaron Rosenblatt, David H. Rosenblatt, David Feldman, Joseph E. Knapp, Diane Battisti, Badie Morsi
  • Patent number: 4504442
    Abstract: The use of gaseous chlorine dioxide to sterilize surfaces, especially the gas impermeable surfaces of implements commonly employed in the medical sciences, such as those formed from porcelain, ceramics, metal, plastics and glass. The contaminated surfaces are contacted with an effective amount of gaseous chlorine dioxide for a time sufficient to kill bacterial spores at a temperature which does not overly exceed ambient temperature.
    Type: Grant
    Filed: October 19, 1982
    Date of Patent: March 12, 1985
    Assignee: Scopas Technology Corporation
    Inventors: David H. Rosenblatt, Aaron A. Rosenblatt, Joseph E. Knapp