Prosecution Insights
Last updated: April 19, 2026
Application No. 16/632,566

Tobacco constituent releasing components

Non-Final OA §103§112
Filed
Jan 21, 2020
Examiner
KRINKER, YANA B
Art Unit
1755
Tech Center
1700 — Chemical & Materials Engineering
Assignee
British American Tobacco (Investments) Limited
OA Round
7 (Non-Final)
58%
Grant Probability
Moderate
7-8
OA Rounds
4y 3m
To Grant
91%
With Interview

Examiner Intelligence

Grants 58% of resolved cases
58%
Career Allow Rate
248 granted / 429 resolved
-7.2% vs TC avg
Strong +33% interview lift
Without
With
+33.0%
Interview Lift
resolved cases with interview
Typical timeline
4y 3m
Avg Prosecution
51 currently pending
Career history
480
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
61.3%
+21.3% vs TC avg
§102
16.2%
-23.8% vs TC avg
§112
16.6%
-23.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 429 resolved cases

Office Action

§103 §112
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 . 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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114.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 1/22/2026 has been entered. Status of the Claims Claims 1, 2, 5-12, 15-29 and 32-40 are pending. Claim 1 has been amended. Claims 15, 16, 21-23, 29 and 32-38 remain withdrawn. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(d): (d) REFERENCE IN DEPENDENT FORMS.—Subject to subsection (e), a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. The following is a quotation of pre-AIA 35 U.S.C. 112, fourth paragraph: Subject to the following paragraph [i.e., the fifth paragraph of pre-AIA 35 U.S.C. 112], a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. Claim 8 is rejected under 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, 4th paragraph, as being of improper dependent form for failing to further limit the subject matter of the claim upon which it depends, or for failing to include all the limitations of the claim upon which it depends. Claim 8 recites “further comprising one or more aerosol forming agents” however claim 1 already recites that the precursor composition includes one or more aerosol forming agents. Applicant may cancel the claim(s), amend the claim(s) to place the claim(s) in proper dependent form, rewrite the claim(s) in independent form, or present a sufficient showing that the dependent claim(s) complies with the statutory requirements. Response to Arguments Applicant' s arguments, filed 12/22/2025, have been fully considered and are persuasive. The Applicant has amended claim 1 to include limitations that were not previously presented. The prior art of record does not appear to disclose the new limitations. Therefore, the rejection has been withdrawn. However, upon further consideration, a new ground(s) of rejection is made in view of US 20120006343 (Renaud hereinafter) and WO 2015025158 (Bell hereinafter). Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claims 1, 2, 5-12, 17-20 and 24-28 is/are rejected under 35 U.S.C. 103 as being unpatentable over US 20120006343 (Renaud hereinafter) in view of WO 2015025158 (Bell hereinafter). Regarding claims 1, 6 and 12, Renaud teaches a tobacco constituent releasing component (14) for inclusion in an aerosol provision device (Fig. 1), the tobacco constituent releasing component having an agglomerated structure formed by extrusion from a precursor composition ([0062] and [0069]), the precursor composition comprising tobacco particles, an aerosol forming agent and a flavorant ([0062] and [0075]), the tobacco constituent releasing component comprising a mass of multiple particles, specifically strands, of the precursor composition fused to one another and impregnated with the one or more aerosol forming agent ([0024];[0062]). Renaud does not expressly teach that the pH of the precursor composition is a basic pH. Bell teaches a tobacco constituent releasing component capable of inclusion in an aerosol provision device (page 1, lines 5-8), the tobacco constituent releasing component comprising tobacco particles, wherein the pH is a basic pH of at least 9.5 (page 6, lines 18-23). It would have been obvious for one of ordinary skill at the time of filing to have made the pH in the precursor composition of Renaud so that it is a basic pH as taught by Bell because this will result in more of the nicotine present in the tobacco being in the form of nicotine free base and more readily released upon heating the tobacco (page 4, lines 1-2). Regarding claims 2 and 5, modified Renaud teaches that the pH is increased by the addition of sodium hydroxide or sodium carbonate (Bell, page 10, lines 29-36). Regarding claim 7, modified Renaud teaches that the tobacco particles have an average diameter of about 1 mm to about 3 mm (Bell, page 7, lines 15-17). Regarding claims 8 and 9, modified Renaud teaches that the aerosol forming agent is propylene glycol (Renaud, [0057]). Regarding claims 10 and 11, modified Renaud teaches a tobacco constituent releasing component (14) in an aerosol provision device (Fig. 1) which comprises binders such as polysaccharides (Renaud, [0072]). Regarding claim 17, modified Renaud teaches inner channels (Renaud, Figs. 2 and 3). Regarding claims 18, 19, 24 and 25, modified Renaud teaches an aerosol provision device (Fig. 1) comprising a tobacco segment (14) which comprises tobacco constituent releasing components (Renaud, [0097]) which are heated to volatilize constituents (Renaud, [0025]). Regarding claims 20 and 26, modified Renaud teaches a device (Fig. 1) which is a hybrid product comprising a tobacco segment (14) which is to be heated to volatilize constituents (Renaud, [0025]), and a liquid, air, which is to be heated to form a vapor (Renaud, [0028]). Modified Renaud teaches that one or more tobacco constituent releasing components are located in the tobacco segment (Renaud, [0024]) and the tobacco segment is heated by the vapor (Renaud, [0025]). Regarding claim 27, modified Renaud teaches that the liquid is a nicotine-free liquid, specifically hot air (Renaud, [0028]). Regarding claim 28, modified Renaud teaches that the device includes a means for heating the liquid to form a vapor, but does not include a separate means for heating the tobacco segment (Renaud, [0028], [0098] and [0099]). Claims 39 and 40 is/are rejected under 35 U.S.C. 103 as being unpatentable over Renaud in view of Bell as applied to claim 1 above, and further in view of WO 2017055584 (Hepworth hereinafter). Regarding claims 39 and 40, modified Renaud does not expressly teach that the device includes filters. Hepworth teaches a tobacco constituent releasing component (124) capable of inclusion in an aerosol provision device (1), the tobacco constituent releasing component having an agglomerated structure (124) formed from a precursor composition comprising tobacco particles, included extruded tobacco (page 23, lines 10-18). Hepworth teaches that the device includes a filter (page 22, lines 15-18). It would have been obvious for one of ordinary skill in the art at the time of filing to have included a filter in modified Renaud, as suggested by Hepworth, because the filter serves to filter the vapor or aerosol before it reaches the user (Hepworth, page 22, lines 15-18). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to YANA B KRINKER whose telephone number is (571)270-7662. The examiner can normally be reached Monday, Wednesday, Thursday and Friday. 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, Philip Louie can be reached at 571-270-1241. 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. YANA B. KRINKER Examiner Art Unit 1755 /YANA B KRINKER/Examiner, Art Unit 1755 /PHILIP Y LOUIE/Supervisory Patent Examiner, Art Unit 1755
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Prosecution Timeline

Jan 21, 2020
Application Filed
Mar 22, 2022
Non-Final Rejection — §103, §112
May 27, 2022
Response Filed
Aug 22, 2022
Final Rejection — §103, §112
Nov 04, 2022
Response after Non-Final Action
Apr 18, 2023
Response after Non-Final Action
Feb 05, 2024
Request for Continued Examination
Feb 21, 2024
Response after Non-Final Action
Feb 22, 2024
Non-Final Rejection — §103, §112
May 28, 2024
Response after Non-Final Action
May 28, 2024
Response Filed
Jun 10, 2024
Response Filed
Aug 21, 2024
Final Rejection — §103, §112
Oct 28, 2024
Response after Non-Final Action
Dec 19, 2024
Request for Continued Examination
Dec 20, 2024
Response after Non-Final Action
Mar 12, 2025
Non-Final Rejection — §103, §112
Jun 16, 2025
Response Filed
Sep 29, 2025
Final Rejection — §103, §112
Dec 22, 2025
Response after Non-Final Action
Jan 22, 2026
Request for Continued Examination
Jan 27, 2026
Response after Non-Final Action
Feb 19, 2026
Non-Final Rejection — §103, §112 (current)

Precedent Cases

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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
58%
Grant Probability
91%
With Interview (+33.0%)
4y 3m
Median Time to Grant
High
PTA Risk
Based on 429 resolved cases by this examiner. Grant probability derived from career allow rate.

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