Prosecution Insights
Last updated: October 22, 2026
Application No. 18/563,416

VAPORIZER FOR AEROSOL GENERATING DEVICE AND AEROSOL GENERATING DEVICE INCLUDING THE SAME

Final Rejection §103
Filed
Nov 22, 2023
Priority
Aug 09, 2022 — RE 10-2022-0099424 +2 more
Examiner
KHLOK, BONITA
Art Unit
3761
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
KT&G Corporation
OA Round
2 (Final)
49%
Grant Probability
Moderate
3-4
OA Rounds
1y 1m
Est. Remaining
96%
With Interview

Examiner Intelligence

Grants 49% of resolved cases
49%
Career Allowance Rate
105 granted / 215 resolved
-21.2% vs TC avg
Strong +47% interview lift
Without
With
+47.2%
Interview Lift
resolved cases with interview
Typical timeline
4y 0m
Avg Prosecution
36 currently pending
Career history
260
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
52.7%
+12.7% vs TC avg
§102
17.2%
-22.8% vs TC avg
§112
27.7%
-12.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 215 resolved cases

Office Action

§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 . The status of the 09/16/2026 claims, is as follows: Claims 1, and 8-9 have been amended; and Claims 1-10 are pending. 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. The factual inquiries set forth in Graham v. John Deere Co., 383 U.S. 1, 148 USPQ 459 (1966), that are applied 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. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claims 1-2, and 5-10 are rejected under 35 U.S.C. 103 as being unpatentable over Kim (US 20210127742) in view of Angell (US 20210378306) Regarding Claim 1, Kim discloses a vaporizer (vaporizer 130) comprising: a storage (liquid storage 1300; fig. 1) configured to store an aerosol generating material (liquid composition) (para. 0039); and a heating chamber (para. 0040; annotated fig. 1) configured to heat the aerosol generating material, wherein the heating chamber includes: a wick (liquid delivery element 135; fig. 1) extending in a longitudinal direction and configured to absorb the aerosol generating material (liquid composition) (para. 0039); a coil (heating element 136; fig. 1) wound around the wick and configured to heat the aerosol generating material absorbed into the wick (para. 0054); and an accommodation portion (annotated fig. 1) including a top surface (all of enlarged annotated fig. 1 that extends from the horizontal bottom surface) and an accommodation groove (enlarged annotated fig. 1) formed in the top surface (according to attached Webster, https://www.merriam-webster.com/dictionary/groove, “groove” is interpreted to mean a depression. The annotated fig. 1 is the groove because it is the depression formed in the top surface of the accommodation portion and is configured to accommodate the liquid delivery element 135 as can be seen in figs. 1-2), the accommodation groove being configured to accommodate the wick (liquid delivery element 135) (para. 0045 and 0058; figs. 1-2. It is noted that the groove as annotated is configured to accommodate the liquid delivery element 135), PNG media_image1.png 240 538 media_image1.png Greyscale wherein the accommodation groove (annotated enlarged fig. 1) formed in the top surface of the accommodation portion has a length and a width that are greater than or equal to a length and a diameter of the wick, respectively, such that the wick is fixed inside the accommodation groove (para. 0045 and 0058; annotated enlarged annotated fig. 1 and also fig. 2). PNG media_image2.png 678 586 media_image2.png Greyscale PNG media_image3.png 678 609 media_image3.png Greyscale PNG media_image4.png 552 949 media_image4.png Greyscale PNG media_image5.png 505 1006 media_image5.png Greyscale Kim does not disclose the vaporizer, wherein a diameter of wire of the coil is 0.15 mm to 0.2 mm, the number of turns of the coil is 6 times to 9 times, and an ohmic loss in the coil is less than 8 watts (W). However, Angell discloses the diameter of wire of the coil is 0.15 mm to 0.2 mm (0.188 mm) (para. 0073; fig. 2), and the number of turns of the coil is 6 times to 9 times (more than 7 complete turns of wire around the wick) (para. 0078). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the diameter of the wire of the coil of Kim to be 0.15 mm to 0.2 mm as taught by Angell, because it is conventionally known to utilize the wire of the coil having the diameter as indicated to achieve desired heating output in the aerosol generating device. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the number of turns of the coil around the wick to be 6 times to 9 times as taught by Angell, because it is conventionally known to wound the coil around wick as many as 6 to 9 turns to achieve desired heating output to sufficiently generate aerosol in the aerosol generating device according to desired application. Regarding the limitation “an ohmic loss in the coil is less than 8 watts (W)”, Kim discloses heating element 136/coil has some degrees of ohmic loss because of its inherent properties of resistive heating element. It have been obvious to one having ordinary skill in the art at the time the invention was made to modify the ohmic loss in the coil to be less than 8 watts, since it has been held that where the general conditions of a claim are disclosed in the prior art, discovering the optimum or workable ranges involves only routine skill in the art. The motivation is to configure the heating coil to generate sufficient heat to heat the aerosol generating material to generate the aerosol within the aerosol generating device. Regarding Claim 2, the modification does not disclose an electrical resistance of the coil is 1.1 ohm to 1.25 ohm. However, Angell further discloses an electrical resistance of the coil (coil) is 1.1 ohm to 1.25 ohm (1.2 ohms) (para. 0091). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the electrical resistance of the coil of Kim to be 1.1 ohm to 1.25 ohm as taught by Angell, because it is conventionally known to utilize the coil having the electrical resistance between 1.1 ohm to 1.25 ohm to ensure the heating coil generates sufficient heat to heat the aerosol generating material to generate the aerosol within the aerosol generating device. Regarding Claim 5, the modification does not disclose a winding interval of the coil wound around the wick is 0.46 mm to 0.55 mm. However, Angell further discloses a winding interval of the coil (pitch of the coil) wound around the wick is 0.46 mm to 0.55 mm (more than around 0.5 mm) (para. 0077). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the winding interval of the coil of Kim wound around the wick to be 0.46 mm to 0.55 mm as taught by Angell, because it is conventionally known to utilize the coil having the winding interval of the coil wound around the wick as indicated to achieve desired heating output by the heating coil to generate sufficient aerosol according to desired application. Regarding Claim 6, the modification does not disclose the coil is wound around the wick to have a length of coil of 3 mm to 3.8 mm in a longitudinal direction of the wick. However, Angell further discloses the coil (coil) is wound around the wick (wick) to have a length of coil of 3 mm to 3.8 mm (more than around 3.5 mm) in a longitudinal direction of the wick (para. 0078-0079). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the coil wound around the wick of Kim to have the length of coil of 3 mm to 3.8 mm in a longitudinal direction of the wick as taught by Angell, because it is conventionally known to utilize the coil wound around the wick to have the length as indicated to achieve desired heating output by the heating coil to generate sufficient aerosol according to desired application. Regarding Claim 7, Kim does the wick (liquid delivery element 135) is formed of silica (silica) (para. 0019). Regarding Claim 8, the modification does not disclose the accommodation groove having a length of 10 mm to 13 mm and a width of 2.4 mm to 3.0 mm. However, it would have been obvious to one having ordinary skill in the art at the time the invention was made to modify the accommodation groove of Kim to have the length of 10 mm to 13 mm and the width of 2.4 mm to 3.0 mm, since it has been held that where the general conditions of a claim are disclosed in the prior art, discovering the optimum or workable ranges involves only routine skill in the art. The motivation is to ensure the accommodation groove is large enough to support the wick having the suitable size according to desired application. Regarding Claim 9, Kim discloses an aerosol generating device (aerosol generation device 100; fig. 6) comprising: the vaporizer (vaporizer 130; fig. 6) (para. 0091); a battery (battery 110) configured to supply power to the vaporizer (para. 0096); and a controller (controller 120) configured to control the power supplied to the vaporizer from the battery (para. 0097). PNG media_image6.png 242 462 media_image6.png Greyscale Regarding Claim 10, Kim discloses the aerosol generating device (aerosol generation device 100; fig. 6), further comprising: a housing (cigarette 200; fig. 6) including a space (space within the cigarette to accommodate an aerosol-generating material) in which an aerosol generating article (aerosol-generating material) is accommodated (para. 0118); and a heater (heater 140) configured to heat the aerosol generating article accommodated in the housing (para. 0099). Claims 3-4 are rejected under 35 U.S.C. 103 as being unpatentable over the modification of Kim (US 20210127742) and Angell (US 20210378306) as applied to claim 1, further in view of Tasselli (US 20240008536) Regarding Claim 3, the modification does not disclose the wick has a length of 8.3 mm to 9.7 mm. However, Tasselli discloses the wick (wick) has a length of 8.3 mm to 9.7 mm (at least 5 mm) (para. 0024). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the wick of Kim to have the length of 8.3 mm to 9.7 mm as taught by Tasselli, because it is conventionally known to have the wick having the indicated length in the aerosol generating device to ensure the aerosol generating material is conveyed along the length of the wick from one end of the wick to the other end of the wick. Regarding Claim 4, the modification does not disclose an uncompressed diameter of the wick is 2.4 mm to 2.6 mm, and a compression diameter of the wick is 1.85 mm to 2.15 mm. However, Tasselli discloses an uncompressed diameter of the wick (wick) is 2.4 mm to 2.6 mm (0.5 mm to 10 mm) (para. 0024). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the wick of Kim to have the diameter of 2.4 mm to 2.6 mm as taught by Tasselli, because it is conventionally known to have the wick having the indicated diameter in aerosol generating device according to desired application. Regarding the limitation “a compression diameter of the wick is 1.85 mm to 2.15 mm”, Tasselli discloses the wick having the diameter 0.5 mm to 10 mm i.e. 2.5 mm. Upon a small amount of force being applied to the wick, the wick is compressed to a slightly smaller diameter i.e. 2.0 mm, which is within the claimed range 1.85 mm to 2.15 mm. Response to Amendment With respect to notification of 112f: since amendments made to the claims, therefore the 112f notification are withdrawn. With respect to claim objections: since amendment made to claim 9, therefore the claim objections are withdrawn. Response to Arguments Applicant's arguments filed on 09/16/2026 have been fully considered but they are respectfully considered moot in view of new ground of rejections. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any extension fee pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to BONITA KHLOK whose telephone number is (571)270-7313. The examiner can normally be reached on M-F: 9:00am-6pm. 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, IBRAHIME ABRAHAM can be reached on (571) 270-5569. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /BONITA KHLOK/ Examiner, Art Unit 3761 /IBRAHIME A ABRAHAM/ Supervisory Patent Examiner, Art Unit 3761
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Prosecution Timeline

Nov 22, 2023
Application Filed
Jun 16, 2026
Non-Final Rejection mailed — §103
Sep 09, 2026
Applicant Interview (Telephonic)
Sep 09, 2026
Examiner Interview Summary
Sep 16, 2026
Response Filed
Oct 16, 2026
Final Rejection mailed — §103 (current)

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Prosecution Projections

3-4
Expected OA Rounds
49%
Grant Probability
96%
With Interview (+47.2%)
4y 0m (~1y 1m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 215 resolved cases by this examiner. Grant probability derived from career allowance rate.

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