Prosecution Insights
Last updated: October 22, 2026
Application No. 18/114,066

SMOKING COMPOSITION COMPRISING FLAVOUR PRECURSOR

Non-Final OA §103
Filed
Feb 24, 2023
Priority
Nov 22, 2013 — EU 13194143.7 +4 more
Examiner
NGUYEN, PHU HOANG
Art Unit
1747
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Philip Morris International Inc.
OA Round
7 (Non-Final)
66%
Grant Probability
Favorable
7-8
OA Rounds
2m
Est. Remaining
86%
With Interview

Examiner Intelligence

Grants 66% — above average
66%
Career Allowance Rate
471 granted / 714 resolved
+1.0% vs TC avg
Strong +20% interview lift
Without
With
+19.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 10m
Avg Prosecution
42 currently pending
Career history
772
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
52.9%
+12.9% vs TC avg
§102
12.6%
-27.4% vs TC avg
§112
19.8%
-20.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 714 resolved cases

Office Action

§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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 9/15/2026 has been entered. 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) 2-5 is/are rejected under 35 U.S.C. 103 as being unpatentable over Robinson et al. (U.S Pub. No. 20080092912) in view of Wilson et al. (U.S Patent No. 3966988). Regarding claim 2, Robinson discloses a smoking article comprising: an aerosol forming substrate comprising tobacco; a heating element configured to heat, but not combust, the aerosol forming substrate; a flavour compound such as vanillin, coca can be added to the aerosol forming substrate ([00658] and [0071]); however, Robinson does not expressly disclose cysteine. Wilson discloses useful flavoring materials are vanillin, cocoa, essential oils and cysteine (column 3). Therefore, it would have been obvious to one of ordinary skill in the art at the time the invention was made to add cysteine to the aerosol forming substrate of Robinson for flavoring. Since the claimed compound is cysteine which is the same as the compound disclosed by the combination of Robinson and Wilson, the heating of the aerosol forming substrate and cysteine would result in the claimed production of furfurylthiol. Regarding claim 3, Robinson discloses heating the aerosol forming substrate to a temperature range of about 200 degree C to about 400 degree C [0093]. Since the combination of Robinson and Wilson taken together as a whole discloses the same compound (cysteine) and the heating temperature range within the claimed range; therefore, corresponding to the claimed the compound (cysteine) is configured to release the flavor compound at a temperature of from about 200 degree C to about 450 degree C. Regarding claims 4-5, Robinson discloses the smoking article further comprising nicotine or a source of nicotine [0089]. Response to Arguments Applicant’s arguments filed 8/20/2026 have been considered but are moot in view of the new ground of rejection. 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
Read full office action

Prosecution Timeline

Show 14 earlier events
Oct 13, 2025
Response after Non-Final Action
Jan 09, 2026
Non-Final Rejection mailed — §103
Mar 31, 2026
Response Filed
Jun 24, 2026
Final Rejection mailed — §103
Aug 20, 2026
Response after Non-Final Action
Sep 15, 2026
Request for Continued Examination
Sep 16, 2026
Response after Non-Final Action
Oct 01, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12765605
ATOMIZATION ASSEMBLY FOR USE IN ELECTROMAGNETIC HEATING DEVICE
2y 10m to grant Granted Oct 20, 2026
Patent 12765590
TOBACCO PRODUCT HOLDING DEVICE
2y 0m to grant Granted Oct 20, 2026
Patent 12733679
AEROSOL GENERATING DEVICE AND CONTROL METHOD
3y 3m to grant Granted Sep 15, 2026
Patent 12727615
COMBUSTIBLE HEAT SOURCE FOR SMOKING ARTICLE AND SMOKING ARTICLE COMPRISING SAME
3y 4m to grant Granted Sep 08, 2026
Patent 12714149
SUSCEPTOR FOR VAPOR GENERATION APPARATUS, VAPOR GENERATION APPARATUS, AND TEMPERATURE MEASUREMENT APPARATUS
3y 5m to grant Granted Aug 25, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

7-8
Expected OA Rounds
66%
Grant Probability
86%
With Interview (+19.6%)
3y 10m (~2m remaining)
Median Time to Grant
High
PTA Risk
Based on 714 resolved cases by this examiner. Grant probability derived from career allowance rate.

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