Patents by Inventor John M. Krasniewski

John M. Krasniewski 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).

  • Production and use of polysilicate particulate materials
    Patent number: 10227238
    Abstract: A method of preparing a particulate material comprising the steps of adding silicic acid solution, optionally doped with aluminum, optionally added to a slurry of pre-existing nanoparticles at a neutral to slightly acidic pH of no more than seven, and at a temperature of about 20° to 30° C. This yields a polysilicate particulate dispersion. Then, the pH of the dispersion is raised to greater than seven, to stabilize/reinforce particles of the particulate dispersion. Optionally, the particles may be dried, and have increased porosity and surface area.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: March 12, 2019
    Assignee: Ecolab USA Inc.
    Inventors: Francois Batllo, Brian T. Holland, John M. Krasniewski, Kim M. Long, Michael A. Romba, Sascha Welz, David P. Workman
  • Lubricant additives for paper coating compositions
    Patent number: 5527383
    Abstract: Aqueous lubricant dispersions having a solids content of from about 45% by weight to about 75% by weight contain calcium stearate and a lubricant component with or without a dispersing agent or urea for addition to aqueous paper and paperboard coating compositions.
    Type: Grant
    Filed: October 13, 1994
    Date of Patent: June 18, 1996
    Assignee: Henkel Corporation
    Inventors: Gregory J. Flynn, John M. Krasniewski, Joseph Wilson, Jr.