Prosecution Insights
Last updated: May 29, 2026
Application No. 17/933,605

ELECTRONIC VAPORIZATION DEVICE AND VAPORIZER THEREOF

Non-Final OA §102§103
Filed
Sep 20, 2022
Priority
Sep 30, 2021 — CN 202122399160.6
Examiner
LE, TOBEY CHOU
Art Unit
1747
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Shenzhen Smoore Technology Limited
OA Round
3 (Non-Final)
32%
Grant Probability
At Risk
3-4
OA Rounds
0m
Est. Remaining
97%
With Interview

Examiner Intelligence

Grants only 32% of cases
32%
Career Allowance Rate
9 granted / 28 resolved
-32.9% vs TC avg
Strong +65% interview lift
Without
With
+65.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
24 currently pending
Career history
67
Total Applications
across all art units

Statute-Specific Performance

§101
1.0%
-39.0% vs TC avg
§103
84.5%
+44.5% vs TC avg
§102
5.2%
-34.8% vs TC avg
§112
0.5%
-39.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 28 resolved cases

Office Action

§102 §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 . 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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114.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 2025 November 11 has been entered. Claims 1-18 and 21-22 are pending. Specification The specification is objected to as failing to provide proper antecedent basis for the claimed subject matter. See 37 CFR 1.75(d)(1) and MPEP § 608.01(o). Correction of the following is required. Claim 21: the term “fillet” does not appear in the specification. Claim Objections Claims 3 and 7 are objected to because of the following informalities: Claims 3 and 7: “(a/the) vaporization surface” should be “the heating surface” to clearly point to the same term recited in claim 1. Appropriate correction is required. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claims 1-4, 6-16, and 18 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Chen (CN 113100485 A with reference made to machine translation). Chen fig. 3 is labeled with three instances of #234 which are hereinafter cited as top #234, middle #234, and bottom #234. Claim 1: Chen teaches a vaporizer (fig. 1 and [39], #100), comprising: a heating top cover (fig. 3-4 and [44], #21 and #23 are part of #20; [39], #20 covers a heating element #40), an outer surface of the heating top cover (21 and 23) providing an airway corner ([47-48], middle #234 and bottom #234); a heating body (fig. 1 and [39], #40 which abuts the inside of #21) having a heating surface; and a liquid return groove (fig. 3-4 and [53], walls of #216 and #218) provided on a side wall of the heating top cover (21 and 23) facing (#216 and #218 guide liquid toward and connect to #40) the heating body (40), the liquid return groove (walls of 216 and 218) extending from the heating top cover (21 and 23) to the heating body (40), the liquid return groove (walls of 216 and 218) being arranged at the airway corner (middle 234 and bottom 234), wherein a space (fig. 1, atomization volume of #40) defined at least in part by the heating surface is in communication with the airway corner (fig. 3-4, middle #234 and bottom #234) via the liquid return groove (walls of 216 and 218). “Corner” is interpreted to include the meaning of “region where lines intersect”, consistent with instant fig. 4, #220 showing a continuous, curved region where lines intersect and consistent with instant claim 8 reciting multiple liquid return grooves at the airway corner. Claim 2: Chen teaches the vaporizer according to claim 1, wherein the vaporizer (fig. 1 and [39], #100) comprises a main body (10) and the main body (10) comprises a main airway (12), wherein the heating top cover (20) is arranged in the main body (10), wherein a top cover airway (fig. 3-4, volume abutting #216 and #218 and extending through top #234) is formed between the heating top cover (21 and 23) and the main body (10 above 20), and wherein the top cover airway (volume abutting 216 and 218 and extending through top 234) is in communication with the main airway (12 above 234) through the airway corner (middle 234 and bottom 234). Claim 3: Chen teaches the vaporizer according to claim 1, wherein a groove side wall of the liquid return groove (fig. 3-4, walls of #216 and #218) close to the heating surface of the heating body (40) comprises a side wall opening (annotated fig. 3; [50-51], #2121), and wherein the side wall opening (annotated fig. 3) is configured for liquid to pass through [50-51]. While Chen fig. 3 does not label #2121, Chen discloses that each drainage hole #2121 is positioned in each drainage groove #212 [51], and that each drainage groove #212 is formed by flow-guiding surfaces #216 and #218 [53], so Chen’s draining holes #2121 are surrounded by #216 and #218. PNG media_image1.png 1012 1763 media_image1.png Greyscale Claim 4: Chen teaches the vaporizer according to claim 1, wherein at least one groove side wall of the liquid return groove (fig. 3-4, walls of #216 and #218) is provided with an inclined surface (inclined surface of 216), and wherein the inclined surface (inclined surface of 216) is configured to guide liquid to flow to the heating body [50-51]. PNG media_image1.png 1012 1763 media_image1.png Greyscale Claim 6: Chen teaches the vaporizer according to claim 1, wherein the heating top cover (fig. 3-4, #21 and #23) is provided with a liquid guide groove (groove through which horizontal arrows flow) in communication with the liquid return groove (walls of 216 and 218), and wherein the liquid guide groove (groove through which horizontal arrows flow) is configured to guide liquid to flow to the liquid return groove (walls of 216 and 218). Claim 7: Chen teaches the vaporizer according to claim 6, wherein one end of the liquid guide groove (fig. 3-4, groove through which horizontal arrows flow) is located at the airway corner (middle 234 and bottom 234), and an other end is located on a side of the heating top cover (21 and 23) close to the heating surface (heating surface of 40). Claim 8: Chen teaches the vaporizer according to claim 1, wherein a plurality of liquid return grooves (fig. 3, walls of #216 and #218) are spaced apart at the airway corner (middle 234 and bottom 234). Claim 9: Chen teaches the vaporizer according to claim 1, wherein a quantity of liquid return grooves (fig. 3, walls of #216 and #218) located in a middle portion (middle portion of 23 along left-right axis of fig. 3) of the heating top cover (23) is M (three), wherein a quantity of liquid return grooves (216 and 218) located at an edge (bottommost edge of 23) of the heating top cover (23) is N (three), and wherein M is equal to N. Claim 10: Chen teaches an electronic vaporization device ([38], atomization device), comprising: a power supply assembly (power supply component); and the vaporizer (100) of claim 1, wherein the power supply assembly is electrically connected to the heating body of the vaporizer [38]. Claim 11: Chen teaches the vaporizer according to claim 2, wherein the airway corner (fig. 3-4, middle #234 and bottom #234) is formed between the outer surface of the heating top cover (23) and the main body (fig. 1, #10). Chen fig. 3 is labeled with three instances of #234 which are hereinafter cited as top #234, middle #234, and bottom #234. Claim 12: Chen teaches a vaporizer (fig. 1 and [39], #100), comprising: a main body (10); a heating body (40) having a heating surface; and a heating top cover (fig. 3-4 and [44], #21 and #23 are part of #20; [39], #20 covers a heating element #40) providing an airway corner ([47-48], middle #234 and bottom #234), wherein a gap ([44], a gap is formed between #10 and #23) is formed between an outer surface of the heating top cover (21 and 23) and the main body (10), wherein a top cover airway (volume abutting 216 and 218 and extending through top 234) is formed between the heating top cover (21 and 23) and the main body (10), wherein at least one liquid return groove (walls of 218) is provided on a side wall of the heating top cover (21 and 23), the at least one liquid return groove (walls of 218) being located in the top cover airway (volume abutting 216 and 218 and extending through top 234), and wherein a space (fig. 1, atomization volume of #40) defined at least in part by the heating surface is in communication with the airway corner ([47-48], middle #234 and bottom #234) via the at least one liquid return groove (walls of 218). “Corner” is interpreted to include the meaning of “region where lines intersect”, consistent with instant fig. 4, #220 showing a continuous, curved region where lines intersect and consistent with instant claim 8 reciting multiple liquid return grooves at the airway corner. Claim 13: Chen teaches the vaporizer of claim 12, wherein the heating top cover (fig. 3-4, #23) comprises at least one convex bar (bar which separates instances of 218) arranged on the side wall of the heating top cover (21 and 23). Claim 14: Chen teaches the vaporizer of claim 13, wherein the at least one convex bar (fig. 3-4, bars which separate instances of #218) arranged on the side wall of the heating top cover (21 and 23) comprises a plurality of convex bars (bars which separate instances of 218) spaced apart from one another, and wherein a liquid guide groove (216) is formed between two adjacent convex bars (bars which separate instances of 218) of the plurality of convex bars (bars which separate instances of 218). Claim 15: Chen teaches the vaporizer of claim 14, wherein an end of the liquid guide groove (fig. 3-4, #216) is in communication with a liquid return groove of the at least one liquid return groove (walls of 218). Claim 16: Chen teaches the vaporizer of claim 13, wherein a protruding portion (fig. 3-4, wall of #236 which protrudes radially outwards at topmost end of 23) is arranged on a recess (236) of the heating top cover (21 and 23), and wherein a flange (inclined wall of 236) is disposed at a joint between the protruding portion (side wall of 236) and the recess (236), the flange (inclined wall of 236) having an inclined surface. “Flange” is interpreted to include the meaning of “edge” or “rim”, consistent with instant fig. 2-4, #271 showing an edge of two joined structures. PNG media_image2.png 1040 1459 media_image2.png Greyscale Claim 18: Chen teaches the vaporizer of claim 12, wherein each liquid return groove (fig. 3-4, walls of #218) of the at least one liquid return groove (walls of 218) comprises a side wall opening (opening of 218) for a liquid to flow to [53] a surface of the heating body (40). 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 5 is rejected under 35 U.S.C. 103 as being unpatentable over Chen (CN 113100485 A with reference made to machine translation) as applied to claim 4 in view of Hwang (KR 20130092252 A with reference made to machine translation). Claim 5: Chen teaches the vaporizer according to claim 4, wherein the inclined surface (fig. 3-4, inclined surface of #216) gradually approaches the heating body (40) in a direction away from a bottom wall (annotated fig. 4) of the liquid return groove (walls of 216 and 218). PNG media_image3.png 1025 1308 media_image3.png Greyscale Chen does not explicitly teach that at least a part of a structure of the heating body is accommodated in the liquid return groove. Hwang teaches a vaporizer (title) comprising a wick (fig. 7 and [44], #148) of a heating body (130) that is accommodated in a liquid guide groove ([46], liquid enters #130 through #144), such that a tightness of pressing fit around the wick adjusts an amount of liquid conveyed through the wick [57]. It would have been prima facie obvious to one of ordinary skill in the art before the effective filing date of the instant invention to add Hwang’s wick to Chen’s liquid return groove, because doing so would enable a tightness of pressing fit around the wick to adjust an amount of liquid conveyed through the wick to Chen’s heating surface. Claim 17 is rejected under 35 U.S.C. 103 as being unpatentable over Chen (CN 113100485 A with reference made to machine translation) as applied to claim 16 in view of Lei (CN 110613172 A with reference made to machine translation). Claim 17: Chen teaches the vaporizer of claim 16, wherein the at least one convex bar (fig. 3-4, bars which separate instances of #218) comprises a convex bar (bar which separates instances of 218) having an end extending to cover a portion of the side wall of the heating top cover (23). Chen does not explicitly teach that the convex bar extends to cover a portion of the protruding portion. Lei teaches a vaporizer (fig. 6-7 and [67]) comprising convex bars between which liquid return grooves (122) are formed, wherein the convex bars extend along a longitudinal direction to guide liquid towards a heating body (30), such that vaporization of liquid is made more efficient [67] and such that a user is prevented from inhaling liquid [67]. It would have been prima facie obvious to one of ordinary skill in the art before the effective filing date of the instant invention to extend Chen’s convex bar along a longitudinal direction as taught by Lei, which in Chen would extend the convex bar to cover a portion of the protruding portion to guide liquid flowing along the arrows of Chen fig. 4, because doing so would make vaporization of liquid more efficient and would prevent a user from inhaling liquid. Claims 21-22 are rejected under 35 U.S.C. 103 as being unpatentable over Chen (CN 113100485 A with reference made to machine translation) in view of Illidge (WO 2021053220 A1). Chen fig. 3 is labeled with three instances of #234 which are hereinafter cited as top #234, middle #234, and bottom #234. Claim 21: Chen teaches a vaporizer (fig. 1 and [39], #100), comprising: a heating top cover (fig. 3-4 and [44], #21 and #23 are part of #20; [39], #20 covers a heating element #40); and a heating body (40), wherein the heating top cover comprises an airway convex element ([47-48], middle #234 and bottom #234), and wherein a liquid return groove (2121) extending from the heating top cover (21 and 23) to the heating body (40) is provided at the airway convex element (middle 234 and bottom 234). While Chen fig. 3 does not label #2121, Chen discloses that each drainage hole #2121 is positioned in each drainage groove #212 [51], and that each drainage groove #212 is formed by flow-guiding surfaces #216 and #218 [53], so Chen’s draining holes #2121 are surrounded by #216 and #218. Chen does not explicitly teach that the airway convex element is filleted. Illidge teaches a vaporizer (title) comprising an airway convex element (fig. 23 and p. 20, lines 26-31, #602) that is filleted, such that the filleted element reduces jetting of airflow and increases evenness of airflow distribution (lines 26-31). It would have been prima facie obvious to one of ordinary skill in the art before the effective filing date of the instant invention to fillet Chen’s airway convex element, because doing so would reduce jetting of air flow and increase evenness of airflow distribution. Claim 22: modified Chen teaches the vaporizer of claim 21, wherein the heating body (fig. 1, #40) comprises a heating surface; and wherein a space (atomization volume of 40) defined at least in part by the heating surface is in communication with the airway convex fillet (middle 234 and bottom 234) via the liquid return groove (2121). Response to Arguments Applicant’s arguments of 2025 November 11 have been carefully considered but are not persuasive. Applicant argues (p. 9, [1]) that Chen does not teach that a space defined at least in part by a heating surface is in communication with an airway corner via a liquid return groove. However, Chen does disclose that a space (fig. 1, atomization volume of #40) defined at least in part by a heating surface (atomizing surface of 40) is in communication with an airway corner (fig. 3-4, middle #234 and bottom #234) via a liquid return groove (walls of 216 and 218). Applicant argues (p. 9, [2]) that Chen fig. 4’s horizontal arrows represent only air flow, while Chen fig. 4’s vertical arrows represent only liquid flow, such that Chen’s air does not flow across a liquid return groove (walls of 216 and 218). However, as in the above analysis on the amended claims, Chen discloses that a space (fig. 1, atomization volume of #40) defined at least in part by a heating surface (atomizing surface of 40) is in communication with an airway corner (fig. 3-4, middle #234 and bottom #234) via a liquid return groove (walls of 216 and 218), and arguments against Chen’s horizontal arrows do not break the anticipating disclosure. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Tobey C. Le whose telephone number is (703)756-5516. The examiner can normally be reached Mon-Thu 7:30-17:30 ET. 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 on 571-270-3882. 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. /TOBEY C LE/Examiner, Art Unit 1747 /Michael H. Wilson/Supervisory Patent Examiner, Art Unit 1747
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Prosecution Timeline

Show 3 earlier events
Aug 26, 2025
Final Rejection mailed — §102, §103
Oct 21, 2025
Interview Requested
Oct 30, 2025
Examiner Interview Summary
Oct 30, 2025
Applicant Interview (Telephonic)
Nov 11, 2025
Response after Non-Final Action
Nov 26, 2025
Request for Continued Examination
Nov 28, 2025
Response after Non-Final Action
May 07, 2026
Non-Final Rejection mailed — §102, §103 (current)

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Study what changed to get past this examiner. Based on 4 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
32%
Grant Probability
97%
With Interview (+65.2%)
3y 4m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 28 resolved cases by this examiner. Grant probability derived from career allowance rate.

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