Shuzhong M Zhuang

7370657, May 13, 2008

Apr 2, 2003

10/404440

Shuzhong Zhuang - Richmond VA, US
Jay A Fournier - Richmond VA, US
Lixin Xue - Midlothian VA, US

Philip Morris USA Inc. - Richmond VA

C01B 31/08

131331, 502417, 502418

An activated carbon-containing sorbent is capable of selectively removing one or more selected gaseous components from a gas. The activated carbon-containing sorbent can be incorporated in a smoking article to remove one or more selected components from mainstream smoke. The activated carbon-containing sorbent can be a composite including one or more molecular sieve materials. Methods of making the activated carbon-containing sorbent, cigarette filters and smoking articles including the activated carbon-containing sorbent, as well as methods for smoking a cigarette comprising the activated carbon-containing sorbent, are provided.

7552735, Jun 30, 2009

Apr 11, 2003

10/412117

Lixin Xue - Midlothian VA, US
Jose G. Nepomuceno - Beaverdam VA, US
Shuzhong Zhuang - Richmond VA, US
Timothy Scott Sherwood - Midlothian VA, US
Jay A Fournier - Richmond VA, US
Kent Brian Koller - Chesterfield VA, US
Liqun Yu - Midlothian VA, US

Philip Morris USA Inc. - Richmond VA

A24D 3/04
A24D 3/06

131339, 131342

A cigarette filter for removing gas phase constituents from mainstream cigarette smoke as the smoke is drawn through the filter primarily comprises an activated carbon fiber filter section including a bundle of activated carbon fibers. Particulate adsorbent materials such as granules, beads or course powders may be dispersed amongst the activated carbon fibers to aid in removal of the gas phase constituents. Additionally, the activated carbon fiber filter section may be used in combination with a separate bed or beds of particulate adsorbent material. In one embodiment, the activated carbon fibers are positioned within a helical groove on the outside of a threaded rod within the activated carbon fiber filter section. Relatively smaller amounts of activated carbon fibers produce the same smoke constituent reduction as larger amounts of particulate adsorbent material.

7767134, Aug 3, 2010

Jun 29, 2005

11/170272

Lixin Luke Xue - Midlothian VA, US
Shuzhong Zhuang - Richmond VA, US
Liqun Yu - Midlothian VA, US

Philip Morris USA Inc. - Richmond VA

C01B 31/00

264629, 131211, 131339, 131338, 264632

Disclosed is a method for forming an article with template shaped channels by (a) mixing a precursor with a fibrous template, (b) forming the mixture into a pre-determined shape, (c) curing the mixture to form a precursor composite, (d) carbonizing the precursor composite, and (e) decomposing the fibrous template to yield a shaped carbon article with template shaped channels.

7784470, Aug 31, 2010

Jan 9, 2003

10/339680

Zuyin Yang - Midlothian VA, US
Kent B. Koller - Chesterfield VA, US
Jay A. Fournier - Richmond VA, US
Timothy S. Sherwood - Midlothian VA, US
Zhaohua Luan - Midlothian VA, US
Shuzhong Zhuang - Midlothian VA, US
Jose M. G. Nepomuceno - Beaverdam VA, US
Diane L. Gee - Richmond VA, US
Georgios D. Karles - Richmond VA, US

Philip Morris USA Inc. - Richmond VA

A24D 3/04

131335, 131331, 131336, 131341, 131342, 131344, 131202, 131201

A smoking article such as a cigarette comprises a tobacco rod and a filter component having a cavity filled with spherical beaded carbon. As mainstream tobacco smoke is drawn through the filter component, targeted gas phase smoke constituents are removed as the smoke passes through the carbon. During the filter manufacturing process the spherical beaded carbon flows like a liquid and substantially completely fills the cavity. Point-to-point contact between the spherical beads together with substantially complete filling of the cavity produces minimal channeling of ambulatory gas phase as well as maximum contact between the gas phase and the carbon surface of the spherical beads during smoking.

7784471, Aug 31, 2010

Apr 11, 2006

11/401723

Zuyin Yang - Midlothian VA, US
Kent B. Koller - Chesterfield VA, US
Jay A. Fournier - Richmond VA, US
Timothy S. Sherwood - Midlothian VA, US
Zhaohua Luan - Midlothian VA, US
Shuzhong Zhuang - Richmond VA, US
Jose G. Nepomuceno - Beaverdam VA, US
Diane L. Gee - Richmond VA, US
Georgios D. Karles - Richmond VA, US

Philip Morris USA Inc. - Richmond VA

A24D 3/04

131335, 131341, 131342, 131344, 131331, 131336, 131202, 131201

A smoking article such as a cigarette comprises a tobacco rod and a filter component having a cavity filled with spherical beaded carbon. As mainstream tobacco smoke is drawn through the filter component, targeted gas phase smoke constituents are removed as the smoke passes through the carbon. During the filter manufacturing process the spherical beaded carbon flows like a liquid and substantially completely fills the cavity. Point-to-point contact between the spherical beads together with substantially complete filling of the cavity produces minimal channeling of ambulatory gas phase as well as maximum contact between the gas phase and the carbon surface of the spherical beads during smoking.

7914622, Mar 29, 2011

Dec 19, 2006

11/641051

Lixin Xue - Midlothian VA, US
Liqun Yu - Midlothian VA, US
Shuzhong Zhuang - Richmond VA, US
Georgios D. Karles - Richmond VA, US
Kent B. Koller - Chesterfield VA, US

Philip Morris USA Inc. - Richmond VA

A24B 15/00

131274, 131335, 131361

A smoking article includes a cylinder of smoking material having at least one hollow tube having a heat conductive wall within the cylinder of smoking material and a filter system attached to the cylinder of smoking material. The filter system includes an adsorbent material therein. The at least one hollow tube extends from within the cylinder of smoking material through the adsorbent material. At least one flavorant material is retained within the at least one hollow tube, and upon exposure to heat from the heat conductive wall of the hollow tube the flavorant material releases a flavorant.

7997282, Aug 16, 2011

Oct 31, 2007

11/931624

Zuyin Yang - Midlothian VA, US
Kent B. Koller - Chesterfield VA, US
Jay A. Fournier - Richmond VA, US
Timothy S. Sherwood - Midlothian VA, US
Zhaohua Luan - Midlothian VA, US
Shuzhong Zhuang - Richmond VA, US
Jose G. Nepomuceno - Beaverdam VA, US
Diane L. Gee - Richmond VA, US
Georgios D. Karles - Richmond VA, US

Philip Morris USA Inc. - Richmond VA

A24D 3/04

131344, 131335, 131341, 131342, 131345

A smoking article such as a cigarette comprises a tobacco rod and a filter component having a cavity filled with spherical beaded carbon. As mainstream tobacco smoke is drawn through the filter component, targeted gas phase smoke constituents are removed as the smoke passes through the carbon. During the filter manufacturing process the spherical beaded carbon flows like a liquid and substantially completely fills the cavity. Point-to-point contact between the spherical beads together with substantially complete filling of the cavity produces minimal channeling of ambulatory gas phase as well as maximum contact between the gas phase and the carbon surface of the spherical beads during smoking.

8227376, Jul 24, 2012

Mar 1, 2010

12/715216

Georgios D. Karles - Richmond VA, US
Gunaranjan Viswanathan - Chandler AZ, US
John Layman - Blacksburg VA, US
Shuzhong Zhuang - Richmond VA, US

Philip Morris USA Inc. - Richmond VA

B01J 20/00
C01B 31/08
C01B 31/00
B01D 39/00
B01F 3/08
C08L 91/08

502404, 502416, 502418, 977742, 423445 R, 2105021, 516 32, 516 38

A method of producing a multi-modal pore distribution activated carbon is provided herein by preparing a solution comprising a polymer precursor, mixing an additional material with the polymer precursor in the solution, cross-linking the polymer precursor with the additional material mixed therein, carbonizing the mixture of the polymer precursor and the additional material, and activating the carbonized mixture to form a multi-modal pore distribution activated carbon. The multi-modal pore distribution activated carbon can include pores less than 20 Å and greater than 30 Å or 500 Å depending upon the sorption properties desired, wherein the pore distribution of the activated carbon can be tailored to provide predetermined kinetics and/or gaseous constituent equilibrium isotherms.