Prosecution Insights
Last updated: April 19, 2026
Application No. 18/285,615

HEATER ASSEMBLY FOR AEROSOL-GENERATING DEVICE AND AEROSOL-GENERATING DEVICE INCLUDING THE SAME

Non-Final OA §103
Filed
Oct 04, 2023
Examiner
NGUYEN, PHU HOANG
Art Unit
1747
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Kt&G Corporation
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

§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 § 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) 1-4, 10-15 is/are rejected under 35 U.S.C. 103 as being unpatentable over Li et al. (U.S Pub. No. 20180325179) and Xu et al. (CN 112203533). Claim 1, Li discloses a heater assembly for an aerosol-generating device, the heater assembly comprising: a heater (14, fig. 2) configured to heat an aerosol-generating article; a body arranged to surround the aerosol-generating article; a first cover coupled to a side of the body and comprising a first hole for receiving the aerosol-generating article (by reference sign 12, fig. 2); and a second cover coupled to another side of the body and comprising a second hole for receiving a power line for supplying power to the heater (bottom of fig. 2 and [0025]), wherein an accommodating space (chamber [0011-0012 and 0025] for accommodating the aerosol-generating article is formed by the first cover, the body, and the second cover. Li does not expressly discloses a material configured to reflect the heat generated from the heater to the accommodating space is deposited on an inner surface of at least one of the body, the first cover, and the second cover. Xu discloses a material configured to reflect the heat generated from the heater to the accommodating space is deposited on an inner surface of a body (Abstract and by reference sign 140, fig. 1). Regarding claim 2, Xu discloses a cover insulation member extending in a length direction of the heater and arranged between the heater and the body (Abstract, 150, fig.1); therefore it would have been obvious to one of ordinary skill in the art at the time the invention was made to have the first cover of Li comprises a cover insulation member extending in a length direction of the heater and arranged between the heater and the body as taught by Xu to provide insulation. Regarding claim 3, Xu the cover insulation member partially surrounds the heater (Abstract and fig. 1). Regarding claim 4, Li the first cover comprises: a first cover body comprising an insertion hole into which the aerosol-generating article is to be inserted; and a first protruding member protruding from the first cover body and including a coupling hole for receiving a coupling member for coupling the first cover to the aerosol-generating device (by reference sign 12, fig. 2). Regarding claim 10, Li discloses a lower sealing coupled to the second cover, wherein the second cover comprises an inner surface facing the second hole, and the lower sealing comprises a first sealing that fills the second hole by contacting the inner surface of the second cover [0013 and 0034]. Claim 11, Li discloses the sealing element preventing solid tobacco material or tobacco liquid from infiltrating [0034]; therefore it would have been obvious to one of ordinary skill in the art at the time the invention was made to have the first sealing is inserted into the second hole by an interference fit manner. Regarding claim 12, Li discloses a first sealing body inserted into the second hole; a first penetration groove formed in the first sealing body such that a portion of the heater penetrates through the first penetration groove; and a second penetration groove formed in the first sealing body apart from the first penetration groove such that a portion of the sensor penetrates through the second penetration groove (see fig. 2 and [0025]. Regarding claim 13, Li discloses the second cover further comprises an outer surface opposite to the inner surface, and the lower sealing further comprises a second sealing arranged at an outer surface of the second cover [0013 and 0034]. Regarding claim 14, Li discloses a supporter arranged in the heater and supporting the heater (see fig. 2 and [0025]. Regarding claim 15, the combination of Li and Xu taken together as a whole discloses an aerosol-generating device comprising: a heater assembly (as discussed above for claim 1), a battery (Xu discloses lithium ion battery) configured to supply power to the heater assembly; and a controller configured to control operations of the heater assembly ([0032 and fig. 3 of Li). Claim(s) 6-9 is/are rejected under 35 U.S.C. 103 as being unpatentable over Li et al. (U.S Pub. No. 20180325179) and Xu et al. (CN 112203533) as applied to claim 1 above and further in view of Fursa (WO 2020249661). Claim 5, Fernando discloses a heater assembly comprises a detector (corresponding to the claimed antenna) arranged inside the body and surround at least a portion of the heater, capable of detecting the presence of aerosol-generating device in an accommodating space (Abstract and claim 2). Therefore, it would have been obvious to one of ordinary skill in the art at the time the invention was made to make the heater assembly of Li comprising an antenna arranged inside the body to surround at least a portion of the heater and configured to recognize whether the aerosol-generating device is accommodated in the accommodating space as taught by Fursa. Regarding claim 6, Fursa discloses the antenna comprises an antenna body extending in a length direction of the heater and surrounding at least a portion of the heater, and the combination of Li, Xu and Fursa taken together as a whole discloses the first cover comprises a cover insulation member extending in the length direction and arranged at a position corresponding to the antenna body. Regarding claim 7, Li discloses the assembly further comprising a sensor arranged inside the body and configured to sense a temperature of the heater [0025], it would have been obvious to one of ordinary skill in the art to arrange the sensor so that it can penetrate through the antenna to monitor the temperature of the heater. Regarding claim 8, Fursa discloses the sensor can be shielded from other parts (see document); therefore it would have been obvious to one of ordinary skill in the art at the time the invention was made to further have a shielding portion arranged between the antenna and the body to surround at least a portion of the antenna. Regarding claim 9, Li discloses a sensor arranged inside the body and configured to sense a temperature of the heater [0025]; it would have been obvious to one of ordinary skill in the art to arrange the sensor so that it can penetrate through a portion of the shielding portion to monitor the temperature of the heater. 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 04, 2023
Application Filed
Jan 03, 2026
Non-Final Rejection — §103 (current)

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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