Patents by Inventor Huamin Gan

Huamin Gan 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: 11918036
    Abstract: A biodegradable bi-component fiber may include a polyhydroxyalkanoate and/or polylactic acid with cellulose acetate and/or plasticized cellulose acetate for use in a filter material configured for use in a filter of a smoking article. The bi-component fiber may have a sheath-core construction where one component of the bi-component forms the core, and the other component forms the sheath of each fiber. A filter made in accordance with this design may also include non-biodegradable material.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: March 5, 2024
    Assignee: R.J. Reynolds Tobacco Company
    Inventors: Andries D. Sebastian, Alan B. Norman, Leigh Ann Joyce, Huamin Gan
  • Publication number: 20240049777
    Abstract: A biodegradable bi-component fiber may include a polyhydroxyalkanoate and/or polylactic acid with cellulose acetate and/or plasticized cellulose acetate for use in a filter material configured for use in a filter of a smoking article. The bi-component fiber may have a sheath-core construction where one component of the bi-component forms the core, and the other component forms the sheath of each fiber. A filter made in accordance with this design may also include non-biodegradable material.
    Type: Application
    Filed: October 27, 2023
    Publication date: February 15, 2024
    Inventors: Andries D. Sebastian, Alan B. Norman, Leigh Ann Joyce, Huamin Gan
  • Publication number: 20220022522
    Abstract: A method of preparing a whitened tobacco material is provided, the method including the steps of (i) extracting a tobacco material with an aqueous solution to give a tobacco pulp and a tobacco extract; (ii) treating the tobacco pulp with at least one of a caustic reagent and an oxidizing agent for a time and at a temperature sufficient to lighten the color of the tobacco pulp to give a whitened tobacco pulp; (iii) clarifying the tobacco extract to remove higher molecular weight components; and (iv) combining the whitened tobacco pulp with a clarified tobacco extract to form a whitened tobacco material. The whitened tobacco material can be isolated and incorporated into a smokeless tobacco product. The invention also provides a smokeless tobacco product incorporating a whitened tobacco material. The smokeless tobacco product may be a snus-type formulation contained within a sealed pouch.
    Type: Application
    Filed: October 8, 2021
    Publication date: January 27, 2022
    Inventors: Dwayne William Beeson, Jack Gray Flinchum, JR., Huamin Gan
  • Patent number: 11166486
    Abstract: A method of preparing a whitened tobacco material is provided, the method including the steps of (i) extracting a tobacco material with an aqueous solution to give a tobacco pulp and a tobacco extract; (ii) treating the tobacco pulp with at least one of a caustic reagent and an oxidizing agent for a time and at a temperature sufficient to lighten the color of the tobacco pulp to give a whitened tobacco pulp; (iii) clarifying the tobacco extract to remove higher molecular weight components; and (iv) combining the whitened tobacco pulp with a clarified tobacco extract to form a whitened tobacco material. The whitened tobacco material can be isolated and incorporated into a smokeless tobacco product. The invention also provides a smokeless tobacco product incorporating a whitened tobacco material. The smokeless tobacco product may be a snus-type formulation contained within a sealed pouch.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: November 9, 2021
    Assignee: R.J. Reynolds Tobacco Company
    Inventors: Dwayne William Beeson, Jack Gray Flinchum, Jr., Huamin Gan
  • Publication number: 20200367550
    Abstract: A method of preparing a whitened tobacco material is provided, the method including the steps of (i) extracting a tobacco material with an aqueous solution to give a tobacco pulp and a tobacco extract; (ii) treating the tobacco pulp with at least one of a caustic reagent and an oxidizing agent for a time and at a temperature sufficient to lighten the color of the tobacco pulp to give a whitened tobacco pulp; (iii) clarifying the tobacco extract to remove higher molecular weight components; and (iv) combining the whitened tobacco pulp with a clarified tobacco extract to form a whitened tobacco material. The whitened tobacco material can be isolated and incorporated into a smokeless tobacco product. The invention also provides a smokeless tobacco product incorporating a whitened tobacco material. The smokeless tobacco product may be a snus-type formulation contained within a sealed pouch.
    Type: Application
    Filed: August 13, 2020
    Publication date: November 26, 2020
    Inventors: Dwayne William Beeson, Jack Gray Flinchum, JR., Huamin Gan
  • Patent number: 10772349
    Abstract: A method of preparing a whitened tobacco material is provided, the method including the steps of (i) extracting a tobacco material with an aqueous solution to give a tobacco pulp and a tobacco extract; (ii) treating the tobacco pulp with at least one of a caustic reagent and an oxidizing agent for a time and at a temperature sufficient to lighten the color of the tobacco pulp to give a whitened tobacco pulp; (iii) clarifying the tobacco extract to remove higher molecular weight components; and (iv) combining the whitened tobacco pulp with a clarified tobacco extract to form a whitened tobacco material. The whitened tobacco material can be isolated and incorporated into a smokeless tobacco product. The invention also provides a smokeless tobacco product incorporating a whitened tobacco material. The smokeless tobacco product may be a snus-type formulation contained within a sealed pouch.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: September 15, 2020
    Assignee: R.J. Reynolds Tobacco Company
    Inventors: Dwayne William Beeson, Jack Gray Flinchum, Jr., Huamin Gan
  • Publication number: 20190313689
    Abstract: A smokeless tobacco product is configured for insertion into the mouth of a user and incorporates materials from Nicotiana species (e.g., tobacco-derived materials) and plant materials from non-Nicotiana species (e.g., non-tobacco plant materials). The tobacco material can have the form of processed tobacco material (e.g., granulated, reconstituted, heat treated, or otherwise processed tobacco laminae and/or stem), tobacco extract (e.g., an extract of water soluble tobacco components obtained by extracting tobacco with water), or a combination thereof. The non-tobacco material can have the form of vegetable pulp (e.g., sugar beet pulp), pulp obtained after removal of water soluble components as a result of water extraction treatment, or a combination thereof.
    Type: Application
    Filed: June 26, 2019
    Publication date: October 17, 2019
    Inventors: Dwayne William Beeson, Jack Gray Flinchum, JR., Huamin Gan
  • Patent number: 10342251
    Abstract: A smokeless tobacco product is configured for insertion into the mouth of a user and incorporates materials from Nicotiana species (e.g., tobacco-derived materials) and plant materials from non-Nicotiana species (e.g., non-tobacco plant materials). The tobacco material can have the form of processed tobacco material (e.g., granulated, reconstituted, heat treated, or otherwise processed tobacco laminae and/or stem), tobacco extract (e.g., an extract of water soluble tobacco components obtained by extracting tobacco with water), or a combination thereof. The non-tobacco material can have the form of vegetable pulp (e.g., sugar beet pulp), pulp obtained after removal of water soluble components as a result of water extraction treatment, or a combination thereof.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: July 9, 2019
    Assignee: R.J. Reynolds Tobacco Company
    Inventors: Dwayne William Beeson, Jack Gray Flinchum, Jr., Huamin Gan
  • Publication number: 20180338525
    Abstract: A biodegradable bi-component fiber may include a polyhydroxyalkanoate and/or polylactic acid with cellulose acetate and/or plasticized cellulose acetate for use in a filter material configured for use in a filter of a smoking article. The bi-component fiber may have a sheath-core construction where one component of the bi-component forms the core, and the other component forms the sheath of each fiber. A filter made in accordance with this design may also include non-biodegradable material.
    Type: Application
    Filed: July 26, 2018
    Publication date: November 29, 2018
    Inventors: Andries D. Sebastian, Alan B. Norman, Leigh Ann Joyce, Huamin Gan
  • Patent number: 10064429
    Abstract: A system configured to produce smokable products including filter elements formed from multiple fibers is provided. The system includes a texturing apparatus configured to combine the fibers such that the fibers are at least partially entangled with each other and form a mixed fiber product. The entangled fibers may be sufficiently separated from one another such that plasticizer may be applied to the mixed fiber product without necessarily performing tow opening, crimp removal, or blooming operations. The fibers combined to form the mixed fiber product may define characteristics that differ or which are the same. Accordingly, filter elements may be produced that include different fibers that have respective desirable properties associated therewith. Related methods, apparatuses and mixed fiber products are also provided by the disclosure.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: September 4, 2018
    Assignee: R.J. Reynolds Tobacco Company
    Inventors: Andries D. Sebastian, Huamin Gan, Kenneth C. Deloach, Richard L. Sizemore, Dean M. Vick
  • Patent number: 10058121
    Abstract: A biodegradable bi-component fiber may include a polyhydroxyalkanoate and/or polylactic acid with cellulose acetate and/or plasticized cellulose acetate for use in a filter material configured for use in a filter of a smoking article. The bi-component fiber may have a sheath-core construction where one component of the bi-component forms the core, and the other component forms the sheath of each fiber. A filter made in accordance with this design may also include non-biodegradable material.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: August 28, 2018
    Assignee: R.J. Reynolds Tobacco Company
    Inventors: Andries D. Sebastian, Alan B. Norman, Leigh Ann Joyce, Huamin Gan
  • Publication number: 20160338403
    Abstract: A method of preparing a whitened tobacco material is provided, the method including the steps of (i) extracting a tobacco material with an aqueous solution to give a tobacco pulp and a tobacco extract; (ii) treating the tobacco pulp with at least one of a caustic reagent and an oxidizing agent for a time and at a temperature sufficient to lighten the color of the tobacco pulp to give a whitened tobacco pulp; (iii) clarifying the tobacco extract to remove higher molecular weight components; and (iv) combining the whitened tobacco pulp with a clarified tobacco extract to form a whitened tobacco material. The whitened tobacco material can be isolated and incorporated into a smokeless tobacco product. The invention also provides a smokeless tobacco product incorporating a whitened tobacco material. The smokeless tobacco product may be a snus-type formulation contained within a sealed pouch.
    Type: Application
    Filed: August 8, 2016
    Publication date: November 24, 2016
    Inventors: Dwayne William Beeson, Jack Gray Flinchum, JR., Huamin Gan
  • Patent number: 9420825
    Abstract: A method of preparing a whitened tobacco material is provided, the method including the steps of (i) extracting a tobacco material with an aqueous solution to give a tobacco pulp and a tobacco extract; (ii) treating the tobacco pulp with at least one of a caustic reagent and an oxidizing agent for a time and at a temperature sufficient to lighten the color of the tobacco pulp to give a whitened tobacco pulp; (iii) clarifying the tobacco extract to remove higher molecular weight components; and (iv) combining the whitened tobacco pulp with a clarified tobacco extract to form a whitened tobacco material. The whitened tobacco material can be isolated and incorporated into a smokeless tobacco product. The invention also provides a smokeless tobacco product incorporating a whitened tobacco material. The smokeless tobacco product may be a snus-type formulation contained within a sealed pouch.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: August 23, 2016
    Assignee: R.J. Reynolds Tobacco Company
    Inventors: Dwayne William Beeson, Jack Gray Flinchum, Jr., Huamin Gan
  • Publication number: 20150272208
    Abstract: A biodegradable bi-component fiber may include a polyhydroxyalkanoate and/or polylactic acid with cellulose acetate and/or plasticized cellulose acetate for use in a filter material configured for use in a filter of a smoking article. The bi-component fiber may have a sheath-core construction where one component of the bi-component forms the core, and the other component forms the sheath of each fiber. A filter made in accordance with this design may also include non-biodegradable material.
    Type: Application
    Filed: June 11, 2015
    Publication date: October 1, 2015
    Inventors: Andries D. Sebastian, Alan B. Norman, Leigh Ann Joyce, Huamin Gan
  • Publication number: 20150189909
    Abstract: A smokeless tobacco product is configured for insertion into the mouth of a user and incorporates materials from Nicotiana species (e.g., tobacco-derived materials) and plant materials from non-Nicotiana species (e.g., non-tobacco plant materials). The tobacco material can have the form of processed tobacco material (e.g., granulated, reconstituted, heat treated, or otherwise processed tobacco laminae and/or stem), tobacco extract (e.g., an extract of water soluble tobacco components obtained by extracting tobacco with water), or a combination thereof. The non-tobacco material can have the form of vegetable pulp (e.g., sugar beet pulp), pulp obtained after removal of water soluble components as a result of water extraction treatment, or a combination thereof.
    Type: Application
    Filed: March 17, 2015
    Publication date: July 9, 2015
    Inventors: Dwayne William Beeson, Jack Gray Flinchum, JR., Huamin Gan
  • Patent number: 9066538
    Abstract: A method is provided for curing tobacco. The method includes steps of wilting, bruising, aerating, and drying tobacco, where each of the steps is measured in hours or days rather than months. In some aspects, aeration may take two to twelve hours or less. In some aspects, the entire curing method may be completed in 24 hours or less.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: June 30, 2015
    Assignee: R.J. Reynolds Tobacco Company
    Inventors: Gong Chen, Michael Francis Dube, Daniel Verdin Cantrell, Jerry Wayne Marshall, Frank Kelley St. Charles, Huamin Gan, Cheryl Cooper Scott, Barry Smith Fagg
  • Patent number: 9039839
    Abstract: A smokeless tobacco product is configured for insertion into the mouth of a user and incorporates materials from Nicotiana species (e.g., tobacco-derived materials) and plant materials from non-Nicotiana species (e.g., non-tobacco plant materials). The tobacco material can have the form of processed tobacco material (e.g., granulated, reconstituted, heat treated, or otherwise processed tobacco laminae and/or stem), tobacco extract (e.g., an extract of water soluble tobacco components obtained by extracting tobacco with water), or a combination thereof. The non-tobacco material can have the form of vegetable pulp (e.g., sugar beet pulp), pulp obtained after removal of water soluble components as a result of water extraction treatment, or a combination thereof.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: May 26, 2015
    Assignee: R.J. Reynolds Tobacco Company
    Inventors: Dwayne William Beeson, Jack Gray Flinchum, Jr., Huamin Gan
  • Publication number: 20130206153
    Abstract: A method of preparing a whitened tobacco material is provided, the method including the steps of (i) extracting a tobacco material with an aqueous solution to give a tobacco pulp and a tobacco extract; (ii) treating the tobacco pulp with at least one of a caustic reagent and an oxidizing agent for a time and at a temperature sufficient to lighten the color of the tobacco pulp to give a whitened tobacco pulp; (iii) clarifying the tobacco extract to remove higher molecular weight components; and (iv) combining the whitened tobacco pulp with a clarified tobacco extract to form a whitened tobacco material. The whitened tobacco material can be isolated and incorporated into a smokeless tobacco product. The invention also provides a smokeless tobacco product incorporating a whitened tobacco material. The smokeless tobacco product may be a snus-type formulation contained within a sealed pouch.
    Type: Application
    Filed: February 13, 2012
    Publication date: August 15, 2013
    Inventors: Dwayne William Beeson, Jack Gray Flinchum, JR., Huamin Gan
  • Publication number: 20130074853
    Abstract: A system configured to produce smokable products including filter elements formed from multiple fibers is provided. The system includes a texturing apparatus configured to combine the fibers such that the fibers are at least partially entangled with each other and form a mixed fiber product. The entangled fibers may be sufficiently separated from one another such that plasticizer may be applied to the mixed fiber product without necessarily performing tow opening, crimp removal, or blooming operations. The fibers combined to form the mixed fiber product may define characteristics that differ or which are the same. Accordingly, filter elements may be produced that include different fibers that have respective desirable properties associated therewith. Related methods, apparatuses and mixed fiber products are also provided by the disclosure.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Inventors: Andries D. Sebastian, Huamin Gan, Kenneth C. Deloach, Richard L. Sizemore, Dean M. Vick
  • Publication number: 20120234334
    Abstract: A method is provided for curing tobacco. The method includes steps of wilting, bruising, aerating, and drying tobacco, where each of the steps is measured in hours or days rather than months. In some aspects, aeration may take two to twelve hours or less. In some aspects, the entire curing method may be completed in 24 hours or less.
    Type: Application
    Filed: March 15, 2011
    Publication date: September 20, 2012
    Inventors: Gong Chen, Michael Francis Dube, Daniel Verdin Cantrell, Jerry Wayne Marshall, Frank Kelley St. Charles, Huamin Gan, Cheryl Cooper Scott, Barry Smith Fagg