Patents by Inventor Janet Woodward

Janet Woodward 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).

  • Method for controlling enzymatic decomposition of peroxide
    Patent number: 8246778
    Abstract: A method is described controlling enzymatic decomposition of peroxide comprising contacting a composition containing a peroxide decomposing enzyme with an aldehyde functional polymer added in an amount effective to control the enzyme. There also is a method described for bleaching cellulose pulp, such as recycled paper pulp or other pulps, with an aldehyde functional polymer introduced in an amount effective to control peroxide decomposing enzymes present in the pulp being bleached. Paper products containing the aldehyde functional polymer used to control peroxide decomposing enzymes in a bleaching treatment of cellulose pulp are also provided.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: August 21, 2012
    Assignee: Buckman Laboratories International, Inc.
    Inventors: Chen Lu, Janet Woodward
  • Method For Controlling Enzymatic Decomposition Of Peroxide and Products Thereof
    Publication number: 20100126680
    Abstract: A method is described controlling enzymatic decomposition of peroxide comprising contacting a composition containing a peroxide decomposing enzyme with an aldehyde functional polymer added in an amount effective to control the enzyme. There also is a method described for bleaching cellulose pulp, such as recycled paper pulp or other pulps, with an aldehyde functional polymer introduced in an amount effective to control peroxide decomposing enzymes present in the pulp being bleached. Paper products containing the aldehyde functional polymer used to control peroxide decomposing enzymes in a bleaching treatment of cellulose pulp are also provided.
    Type: Application
    Filed: November 19, 2009
    Publication date: May 27, 2010
    Applicant: BUCKMAN LABORATORIES INTERNATIONAL, INC.
    Inventors: Chen Lu, Janet Woodward
  • Method for removing stickies from wastepaper using modified cationic kaolin
    Patent number: 5540814
    Abstract: Methods for reducing stickies and removing ink from wastepaper fiber wherein a cationic kaolin is added to a wastepaper fiber furnish under conditions such that the kaolin attaches to the stickies or the ink and the stickies or ink are removed from the furnish using a centrifugal cleaner.
    Type: Grant
    Filed: January 24, 1995
    Date of Patent: July 30, 1996
    Assignees: Nord Kaolin Company, Cascades, Inc.
    Inventors: Jerry Curtis, Henry Agbaje, Janet Woodward, Andres Vaska, Roger Gaudreault