	US 12,121,054 B2
	Smoking article filter
Brenton D. Dillie, Greensboro, NC (US); Ann Treadaway, Greensboro, NC (US); and Elizabeth Gerringer, Greensboro, NC (US)
Assigned to Essentra Filter Products Development Co. Pte. Ltd., Singapore (SG)
Appl. No. 16/652,880
Filed by Essentra Filter Products Development Co. Pte. Ltd, Singapore (SG)
PCT Filed Oct. 1, 2018, PCT No. PCT/EP2018/076578 § 371(c)(1), (2) Date Apr. 1, 2020, PCT Pub. No. WO2019/068605, PCT Pub. Date Apr. 11, 2019.
Application 16/652,880 is a continuation of application No. 15/722,086, filed on Oct. 2, 2017.
Claims priority of application No. 1718333 (GB), filed on Nov. 6, 2017.
Prior Publication US 2020/0229489 A1, Jul. 23, 2020
Int. Cl. A24D 3/06 (2006.01); A24B 15/16 (2020.01); A24D 1/02 (2006.01); A24D 1/18 (2006.01); A24D 3/04 (2006.01); A24D 3/10 (2006.01)

CPC A24D 3/061 (2013.01) [A24B 15/16 (2013.01); A24D 1/027 (2013.01); A24D 1/18 (2013.01); A24D 3/04 (2013.01); A24D 3/10 (2013.01)]

9 Claims

1. A multiple rod for use in a smoking article, comprising a mouthpiece comprising a first longitudinally extending rod of filtering material having a uniform cross-section along its full length, the first longitudinally extending rod comprising only three longitudinally extending channels which extend along the full length of the mouthpiece, wherein the channels are surrounded by the filtering material along the full length of the mouthpiece, wherein the channels of the mouthpiece have a diameter from 0.5 mm to 10 mm;

the multiple rod further comprising a filter comprising a second longitudinally extending rod of filtering material of uniform cross section along its full length, the second longitudinally extending rod comprising one longitudinally extending channel which extends along the full length of the filter, wherein the channel has a diameter from 1 mm to 4 mm;

and wherein the smoking article comprises one or more smokable material(s) other than tobacco wherein the smokable material(s) is prepared from a plant in the Cannabis genus.