Patents by Inventor Jerry D. Gargulak

Jerry D. Gargulak 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).

  • Anti-autooxidative wood pellet binder
    Patent number: 11286439
    Abstract: Formulations and methods of making wood pellets treated with lignin sulfonate as an anti-autooxidative component to reduce the rate of self-heating of bulk wood pellets. The lignin sulfonate may be used as a binder in the wood pellets or the wood pellets may be sprayed with lignin sulfonate for an encapsulated wood pellet. Wood pellets having the lignin sulfonate have a lowered potential of self-heating below high reactivity pellets and better structural durability during storage and transportation without adversely affecting the fuel value of the wood pellets.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: March 29, 2022
    Assignee: BORREGAARD AS
    Inventors: Thomas S. Winowiski, Jerry D. Gargulak, Kevin L. Hendricks, Robert H. Narron
  • ANTI-AUTOOXIDATIVE WOOD PELLET BINDER
    Publication number: 20210214630
    Abstract: Formulations and methods of making wood pellets treated with lignin sulfonate as an anti-autooxidative component to reduce the rate of self-heating of bulk wood pellets. The lignin sulfonate may be used as a binder in the wood pellets or the wood pellets may be sprayed with lignin sulfonate for an encapsulated wood pellet. Wood pellets having the lignin sulfonate have a lowered potential of self-heating below high reactivity pellets and better structural durability during storage and transportation without adversely affecting the fuel value of the wood pellets.
    Type: Application
    Filed: May 30, 2019
    Publication date: July 15, 2021
    Inventors: Thomas S. Winowiski, Jerry D. Gargulak, Kevin L. Hendricks, Robert H. Narron
  • Hardwood lignosulfonates for separating gangue materials from metallic sulfide ores
    Patent number: 8221709
    Abstract: Disclosed are compositions and methods for separating gangue material from metallic sulfide ores. The compositions typically include a lignosolfonate and do not include a cyanide salt. Suitable lignosulfonates may include lignosulfonates, for example hardwood lignosulfonate having a weight average molecular weight of about 3 kDa to about 12 kDa and having a relatively low sulfur content and a relatively low sulfonate content.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: July 17, 2012
    Assignee: LignoTech USA, Inc.
    Inventors: Jerry D. Gargulak, Lori L. Bushar
  • Hardwood Lignosulfonates for Separating Gangue Materials From Metallic Sulfide Ores
    Publication number: 20100233050
    Abstract: Disclosed are compositions and methods for separating gangue material from metallic sulfide ores. The compositions typically include a lignosulfonate and do not include a cyanide salt. Suitable lignosulfonates may include lignosulfonates, for example hardwood lignosulfonate having a weight average molecular weight of about 3 kDa to about 12 kDa and having a relatively low sulfur content and a relatively low sulfonate content.
    Type: Application
    Filed: August 29, 2008
    Publication date: September 16, 2010
    Applicant: LIGNOTECH USA, INC.
    Inventors: Jerry D. Gargulak, Lori L. Bushar
  • Ammoxidized lignosulfonate cement dispersant
    Patent number: 6238475
    Abstract: A modification to lignosulfonate is disclosed, the effect of which is to reduce the set retarding and air entraining properties normally experienced when using lignosulfonates as water reducing admixtures in cement compositions. The modified lignosulfonate is obtained by oxidative reaction of a lignosulfonate or one of its salts with ammonia or other amine in an aqueous solution.
    Type: Grant
    Filed: April 21, 1999
    Date of Patent: May 29, 2001
    Assignee: LignoTech USA, Inc.
    Inventors: Jerry D. Gargulak, Lori L. Bushar, Ashoke K. Sengupta