Prosecution Insights
Last updated: July 17, 2026
Application No. 18/559,560

VAPORIZER AND ELECTRONIC VAPORIZATION DEVICE

Non-Final OA §103
Filed
Nov 07, 2023
Priority
May 07, 2021 — CN 202110525184.3 +2 more
Examiner
NGUYEN, PHU HOANG
Art Unit
1747
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Shenzhen First Union Technology Co., Ltd.
OA Round
2 (Non-Final)
66%
Grant Probability
Favorable
2-3
OA Rounds
1y 2m
Est. Remaining
84%
With Interview

Examiner Intelligence

Grants 66% — above average
66%
Career Allowance Rate
460 granted / 701 resolved
+0.6% vs TC avg
Strong +19% interview lift
Without
With
+18.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 10m
Avg Prosecution
52 currently pending
Career history
759
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
71.7%
+31.7% vs TC avg
§102
3.6%
-36.4% vs TC avg
§112
4.3%
-35.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 701 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 is/are rejected under 35 U.S.C. 103 as being unpatentable over Cai et al. (US CN-110558613-A). Cai et al. discloses an aerosol generating device (page 1, technical field) comprising a housing (#5 fig 1; page 8, line14). The device contains a liquid storage compartment with a first compartment storing liquid (#2, fig 3, page 7, line3) and a second compartment contains a fluid permeable heating element (page 11, last paragraph) configured to heat and vaporize the liquid substance to generate an aerosol (#3 fig 3, page 7, line 7 and page 11 last paragraph). The first compartment has a liquid outlet connected to a liquid channel to provide a flow path from the first to the second compartment (page 2, lines11-17). The device further comprises a sealing member (sealing body and driving member, page 2, lines 20-26) having a driving arm with a first position that seals the liquid outlet of the first compartment and a second position that opens the liquid outlet allowing liquid to travel to the heater. The sealing member also comprises an electrical switch which opens and closes the electrical circuit to the heater so the heater can heat and vaporize the liquid when the sealing member is in the second position (page 3, lines7-9, page 5, lines 15-19). The electrical switch and sealing body of Cai et al. moves in the axial direction instead of the longitudinal direction as claimed (page 2, lines 18-19). However, it would be obvious to one of ordinary skill in the art at the time of filing the present invention to modify the switch of Cai et al. which moves axially to a switch that moves longitudinally. Switches are well known in the art including the key-press utilized by Cai et al. (page 3, line10) moving in the axial direction and a sliding switch moving in the longitudinal direction. These would merely be obvious equivalent switches used for the same purpose with predictable results. Claim(s) 17-20 is/are rejected under 35 U.S.C. 103 as being unpatentable over Cai et al. (US CN-110558613-A) in view of Silvesstrini et al. (US 20180242642). Regarding claim 17, Cai does not expressly discloses the selectively moving of the electrical contact. Silvesstrini discloses an electrical contact, configured to selectively move from a first position to a second position in a longitudinal direction of the housing, wherein the electrical contact is electrically disconnected from the fluid-permeable heating element when at the first position, and is electrically connected to the fluid-permeable heating element when at the second position [0096]. Therefore, it would have been obvious to one of ordinary skill in the art at the time the invention was made to have the selectively moving of the electrical contact as taught by Silvesstrini. Regarding claim 18, Silvesstrini discloses a liquid guide element, located in the second compartment, to absorb the liquid substrate, wherein: the fluid-permeable heating element is in contact with the liquid guide element, to heat and vaporize at least a part of the liquid substrate in the liquid guide element to generate an aerosol [0089]; and an electrical contact, configured to supply power to the fluid-permeable heating element by the electrical contact [0096]. It would have been obvious to one of ordinary skill in the art to rearrangement of parts so that at least a part of the electrical contact extends in the second compartment in a longitudinal direction of the housing and avoids the liquid guide element. Regarding claim 19, Silvesstrini discloses an electrical contact, configured to supply power to the fluid-permeable heating element by the electrical contact [0096]. It would have been obvious to one of ordinary skill in the art to rearrangement of parts such that at least a part of the electrical contact extends in the second compartment in a longitudinal direction of the housing (see In reJapikse, 181 F.2d 1019, 86 USPQ 70 (CCPA 1950). Regarding claim 20, in addition to the features discussed above for claim 1, Silvesstrini further discloses an electronic vaporization device comprises a power supply for supplying power to the vaporizer [0067]. Claim Objections Claims 3-16 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. 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

Nov 07, 2023
Application Filed
Jan 20, 2026
Non-Final Rejection mailed — §103
Mar 05, 2026
Response Filed
May 05, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12677868
SMOKING ARTICLE
1y 10m to grant Granted Jul 14, 2026
Patent 12660845
APPARATUS AND METHOD FOR FILLING SMOKING CONES
3y 1m to grant Granted Jun 23, 2026
Patent 12653969
LEAK-RESISTANT VAPORIZER DEVICE
2y 0m to grant Granted Jun 16, 2026
Patent 12648590
HARM-REDUCING CIGARETTE FILTER, PREPARATION METHOND AND APPLICATION THEREOF
2y 9m to grant Granted Jun 09, 2026
Patent 12642294
AEROSOL GENERATING ARTICLE COMPRISING COMBUSTIBLE HEAT SOURCE
3y 8m to grant Granted Jun 02, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

2-3
Expected OA Rounds
66%
Grant Probability
84%
With Interview (+18.9%)
3y 10m (~1y 2m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 701 resolved cases by this examiner. Grant probability derived from career allowance rate.

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