| 2025/0072,483 | PAPER TUBE FOR SMOKING ARTICLES WITH FLAVORED SHEET, AND SMOKING ARTICLE | Nov 17, 22 | Mar 06, 25 | KT&G Corporation |
| 2025/0040,592 | ECO-FRIENDLY FILTER WITH BIODEGRADABILITY | Jun 07, 23 | Feb 06, 25 | KT&G Corporation; Kolon Industries Inc.; |
| 2025/0000,134 | PAPER TUBE | Oct 21, 22 | Jan 02, 25 | Not available |
| 2024/0407,431 | SHEET FOR FLAVOR INHALATION ARTICLE | Aug 21, 24 | Dec 12, 24 | Japan Tobacco Inc. |
| 2024/0365,854 | COOLING FILTER AND SMOKING ARTICLE INCLUDING THE SAME | Dec 09, 22 | Nov 07, 24 | KT&G Corporation |
| 2024/0358,067 | METHOD AND APPARATUS FOR PRE-ROLL PAPERS OR WRAP WITH TIPS | Jul 04, 24 | Oct 31, 24 | Not available |
| 2024/0349,782 | FILTER MATERIAL FOR SMOKING ARTICLES HAVING IMPROVED EXPANSION BEHAVIOUR | Mar 21, 22 | Oct 24, 24 | Not available |
| 2024/0324,659 | Filtering Apparatus For A Cigarette | Mar 27, 23 | Oct 03, 24 | Not available |
| 2024/0324,663 | NON-COMBUSTION-HEATING-TYPE STICK | Jun 14, 24 | Oct 03, 24 | Japan Tobacco Inc. |
| 2024/0284,968 | LYOCELL MATERIAL WITH CONTROLLED WHITENESS BY HYDROGEN PEROXIDE TREATMENT AND MANUFACTURING METHOD THEREOF | Sep 21, 22 | Aug 29, 24 | Not available |
| 2024/0268,453 | FILTER MATERIAL FOR SEGMENTS FOR SMOKING ARTICLES WITH REDUCED CREEP TENDENCY | Mar 21, 22 | Aug 15, 24 | Not available |
| 2024/0245,102 | AEROSOL-GENERATING DEVICE AND MEDIUM RECEIVING ROD | Oct 27, 22 | Jul 25, 24 | KT&G Corporation |
| 2024/0245,106 | FILTER FOR CIGARETTES AND CIGARETTE INCLUDING THE SAME | Oct 18, 22 | Jul 25, 24 | KT&G Corporation |
| 2024/0196,964 | FILTER, AN AEROSOL-GENERATING ARTICLE COMPRISING THE SAME, AND A METHOD OF MANUFACTURING THE FILTER | Apr 21, 22 | Jun 20, 24 | KT&G Corporation |
| 2024/0188,631 | HARM-REDUCING CIGARETTE FILTER, PREPARATION METHOND AND APPLICATION THEREOF | Aug 16, 23 | Jun 13, 24 | Not available |
| 2024/0138,468 | SMOKING ARTICLE USING A CONTINUOUS STRUCTURE OF AN ENCAPSULATED MATERIAL | Jan 10, 24 | May 02, 24 | Philip Morris USA Inc. |
| 2023/0172,262 | FILTER FOR THE SORPTION OF COMPONENTS OF TOBACCO SMOKE WHICH ARE HARMFUL TO HEALTH | Apr 26, 21 | Jun 08, 23 | Not available |
| 2022/0400,743 | TOBACCO SMOKE FILTER | Nov 27, 20 | Dec 22, 22 | Not available |
| 2021/0321,667 | FILTER FOR SMOKING ARTICLE | Jun 30, 21 | Oct 21, 21 | Japan Tobacco Inc. |
| 2021/0315,269 | CIGARETTE FILTER CONTAINING ALGINITE | Apr 26, 21 | Oct 14, 21 | Not available |