Prosecution Insights
Last updated: April 19, 2026
Application No. 18/281,525

FLAVORING SHEET WITH ENHANCED FLAVOR HOLDING AMOUNT AND FLAVOR RETENTION AND SMOKING ARTICLE INCLUDING THE SAME

Non-Final OA §102§103
Filed
Sep 11, 2023
Examiner
SZEWCZYK, CYNTHIA
Art Unit
1741
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Kt&G Corporation
OA Round
1 (Non-Final)
74%
Grant Probability
Favorable
1-2
OA Rounds
3y 0m
To Grant
84%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allow Rate
692 granted / 939 resolved
+8.7% vs TC avg
Moderate +10% lift
Without
With
+9.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
40 currently pending
Career history
979
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
48.3%
+8.3% vs TC avg
§102
25.3%
-14.7% vs TC avg
§112
19.2%
-20.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 939 resolved cases

Office Action

§102 §103
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1, 3-5, 8 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by ERGLE et al. (US 2009/0038629). Ergle teaches a flavoring sheet (abstract) comprising a hydrocolloid material (para. 0031) configured to form a sheet; an emulsifier (para. 0043); and menthol (para. 0013) which is a fat-soluble flavoring. Regarding claim 3, Ergle teaches the flavoring sheet includes, with respect to a total of 100 parts by weight, about 20 to about 75% of the fat-soluble flavoring (para. 0014) which overlaps with the claimed range of 10 to 40 parts by weight. Regarding claim 4, Ergle teaches the hydrocolloid material includes a modified cellulose material (para. 0031). Regarding claim 5, Ergle teaches the modified cellulose material includes at least one material selected from methyl cellulose, carboxymethyl cellulose, and ethyl cellulose (para. 0031). Regarding claim 8, Ergle teaches a smoking article comprising a smoking material portion (para. 0015); a filter portion (para. 0015); and a wrapper (para. 0062) configured to wrap around at least a portion of the smoking material portion or the filter portion, wherein a flavoring sheet is disposed on at least a portion of the smoking material portion (para. 0048-0051), and the flavoring sheet includes a hydrocolloid material (para. 0031) configured to form a sheet; an emulsifier (para. 0043); and menthol (para. 0013) which is a fat-soluble flavoring. Claim(s) 1-3, 8 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by SUGYO et al. (US 2019/0274349). Sugyo teaches a flavoring sheet (abstract) comprising a hydrocolloid material (para. 0026) configured to form a sheet; an emulsifier (para. 0035); and menthol (para. 0033) which is a fat-soluble flavoring. Regarding claim 2, Sugyo teaches the flavoring sheet includes, with respect to a total of 100 parts by weight, 0.5 to 5% emulsifier (para. 0036) which falls into the claimed range of 0.5 to 10 parts by weight. Regarding claim 3, Sugyo teaches the flavoring sheet includes, with respect to a total of 100 parts by weight, less than 18% of the fat-soluble flavoring (para. 0034) which overlaps with the claimed range of 10 to 40 parts by weight. Regarding claim 8, Sugyo teaches a smoking article comprising a cigarette that burns a tobacco filler (para. 0071) wherein one of ordinary skill in the art would have recognized that basic structure of a cigarette inherently includes a smoking material portion; a filter portion; and a wrapper configured to wrap around at least a portion of the smoking material portion or the filter portion. Sugyo teaches a flavoring sheet is disposed on at least a portion of the smoking material portion (para. 0230), and the flavoring sheet includes a hydrocolloid material (para. 0026) configured to form a sheet; an emulsifier (para. 0035); and menthol (para. 0033) which is a fat-soluble flavoring. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claim(s) 6-7 is/are rejected under 35 U.S.C. 103 as being unpatentable over ERGLE et al. (US 2009/0038629) in view of OJIMA et al. (EP 1723860). Ergle teaches a flavoring sheet (abstract) comprising a hydrocolloid material (para. 0031) configured to form a sheet; an emulsifier (para. 0043); and menthol (para. 0013) which is a fat-soluble flavoring. Ergle teaches that the flavoring sheet comprises pectin (para. 0031) but is silent to the type of pectin. Ojima teaches a smoking article comprising a hydrocolloid material such as methyl cellulose and carboxymethyl cellulose (para. 0011). Ojima teaches that the smoking article comprises low methoxyl pectin (LM-pectin) that includes a carboxyl group by less than 50% (para. 0039) and has a characteristic of not gelating when cooled (see viscosity stability result in Table 2). It would have been obvious to one of ordinary skill in the art to use low methoxyl pectin (LM-pectin) in the flavoring sheet of Ergle because Ergle teaches that the flavoring sheet comprises pectin (para. 0031). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to CYNTHIA SZEWCZYK whose telephone number is (571)270-5130. The examiner can normally be reached Mon-Fri 10 am - 6 pm. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Alison Hindenlang can be reached at 571-270-7001. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /CYNTHIA SZEWCZYK/Primary Examiner, Art Unit 1741
Read full office action

Prosecution Timeline

Sep 11, 2023
Application Filed
Jan 07, 2026
Non-Final Rejection — §102, §103 (current)

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Prosecution Projections

1-2
Expected OA Rounds
74%
Grant Probability
84%
With Interview (+9.9%)
3y 0m
Median Time to Grant
Low
PTA Risk
Based on 939 resolved cases by this examiner. Grant probability derived from career allow rate.

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