Prosecution Insights
Last updated: April 19, 2026
Application No. 18/493,147

TOBACCO SHEET FOR NON-COMBUSTION-HEATING-TYPE FLAVOR INHALER, NON-COMBUSTION-HEATING-TYPE FLAVOR INHALER, AND NON-COMBUSTION-HEATING-TYPE FLAVOR INHALATION SYSTEM

Non-Final OA §102§103
Filed
Oct 24, 2023
Examiner
NGUYEN, PHU HOANG
Art Unit
1747
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Japan Tobacco Inc.
OA Round
1 (Non-Final)
65%
Grant Probability
Favorable
1-2
OA Rounds
3y 10m
To Grant
84%
With Interview

Examiner Intelligence

Grants 65% — above average
65%
Career Allow Rate
450 granted / 691 resolved
At TC average
Strong +19% interview lift
Without
With
+18.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 10m
Avg Prosecution
56 currently pending
Career history
747
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
51.3%
+11.3% vs TC avg
§102
14.1%
-25.9% vs TC avg
§112
18.1%
-21.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 691 resolved cases

Office Action

§102 §103
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 and 3 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Huang et al. (CN 101999751). Regarding claim 1, Huang discloses a tobacco sheet comprising: a fibrous material (such as tobacco shred) and an inulin (Abstract [0025] [0032]). Regarding claim 3, Huang discloses inulin-type fructan. 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) 4-9, 12, 14-16 and 18-20 is/are rejected under 35 U.S.C. 103 as being unpatentable over Huang et al. (CN 101999751) in view of Ishikawa et al. (WO 2020202254). Regarding claims 4 and 12, Huang does not expressly disclose palmitic acid as a flavor additive. Ishikawa (see document, [0109], [0115]) discloses palmitic acid (having molar mass within the claimed range) can be used as a flavor component in a tobacco sheet wherein the preferred amount of flavor component is usually 10000 ppm to 50000 ppm overlapping with the claimed range (in case of overlapping ranges, it would have been obvious to one of ordinary skill in the art to pick the claimed range). Therefore, it would have been obvious to one of ordinary skill in the art at the time the invention was made to add palmitic acid as a flavor additive as taught by Ishikawa to the tobacco sheet of Huang. Regarding claim 5, Ishikawa discloses palmitic acid corresponding to the claimed a single compound. Regarding claims 6 and 14-16, Ishikawa discloses a tobacco-containing segment, comprising, as fillers the tobacco paper containing trace amount of lignin and hemicellulose [0003]; therefore it would have been obvious to one of ordinary skill in the art at the time the invention was made to perform routine experimentation to arrive to the claimed range. Regarding claims 7 and 18-20, Ishikawa discloses the paper containing an aerosol-generating agent [0002]. Regarding claim 8, Ishikawa discloses a non-combustion heating-type flavor inhaler, comprising: a tobacco-containing segment containing the tobacco sheet for the non-combustion heating-type flavor inhaler (Abstract and fig. 1). Regarding claim 9, Ishikawa discloses a non-combustion heating-type flavor inhalation system, comprising: the non-combustion heating-type flavor inhaler; and a heating device (by reference sign 104, fig. 1) configured to heat the tobacco-containing segment (Abstract and fig. 1). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to PHU H NGUYEN whose telephone number is (571)272-5931. The examiner can normally be reached M-F 9-5. 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, Michael H Wilson can be reached at 5712703882. 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. /PHU H NGUYEN/ Examiner, Art Unit 1747
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Prosecution Timeline

Oct 24, 2023
Application Filed
Oct 24, 2023
Response after Non-Final Action
Oct 24, 2023
Response after Non-Final Action
Mar 29, 2024
Response after Non-Final Action
Jan 09, 2026
Non-Final Rejection — §102, §103
Apr 07, 2026
Interview Requested

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12569432
AEROSOL GENERATOR
2y 5m to grant Granted Mar 10, 2026
Patent 12569003
PRE-ROLL FILLING SYSTEM
2y 5m to grant Granted Mar 10, 2026
Patent 12557846
ELECTRONIC VAPOUR PROVISION SYSTEM
2y 5m to grant Granted Feb 24, 2026
Patent 12543775
METHODS FOR REDUCING ONE OR MORE TOBACCO SPECIFIC NITROSAMINES IN TOBACCO MATERIAL
2y 5m to grant Granted Feb 10, 2026
Patent 12532911
SMOKING ARTICLE WITH FRONT-PLUG AND METHOD
2y 5m to grant Granted Jan 27, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
65%
Grant Probability
84%
With Interview (+18.7%)
3y 10m
Median Time to Grant
Low
PTA Risk
Based on 691 resolved cases by this examiner. Grant probability derived from career allow rate.

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