Prosecution Insights
Last updated: April 17, 2026
Application No. 18/582,427

Energy efficient, safe, customizable stovetop system

Non-Final OA §112
Filed
Feb 20, 2024
Examiner
JONES, LOGAN P
Art Unit
3762
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
unknown
OA Round
3 (Non-Final)
42%
Grant Probability
Moderate
3-4
OA Rounds
3y 6m
To Grant
72%
With Interview

Examiner Intelligence

Grants 42% of resolved cases
42%
Career Allow Rate
215 granted / 511 resolved
-27.9% vs TC avg
Strong +30% interview lift
Without
With
+30.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 6m
Avg Prosecution
66 currently pending
Career history
577
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
57.0%
+17.0% vs TC avg
§102
19.4%
-20.6% vs TC avg
§112
20.0%
-20.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 511 resolved cases

Office Action

§112
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 . DETAILED ACTION 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. Claims 13 and 16 are 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 13 recites “wherein the spiral passage is bounded laterally by the windings and above by the bottom surface of the cooking vessel” which does not further limit “a plurality of spaced-apart windings extending outwardly from a central region and configured to receive flame beneath a cooking vessel placed above the structure, the vessel cooperating with the spiral passage to form a bounded flame path.” Claim 16 recites “wherein the repositionable inlet is securable at multiple points along the spiral passage to adapt to vessels of different sizes” which does not further limit “a repositionable inlet of an exhaust system configured to be inserted into the spiral passage at a location selected based on the size or contour of the cooking vessel.” 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. Allowable Subject Matter Claims 11, 12, 14, 15, and 17 are allowed. The following is an examiner’s statement of reasons for allowance: None of the prior art of record teaches or suggests a stovetop heating system with all of the limitations of independent claims 11 or 12. Claim 11 recites the limitation “a repositionable inlet of an exhaust system configured to be inserted into the spiral passage at a location selected based on the size or contour of the cooking vessel, the exhaust system being arranged to withdraw hot gases from the spiral passage and discharge them at a location away from the stovetop.” The closest prior art of record to claim 11 is the previously cited Jang and Zeng. Zeng teaches an inlet of an exhaust system configured to be inserted into the spiral passage, but does not teach that the inlet is repositionable. No art was found such that further modification of Jang and Zeng would have made the claims obvious. Therefore, these limitations, when combined with every other limitation of the claim, distinguish the claim from the prior art. Claim 12 recites the limitation “a repositionable inlet of an exhaust system configured to be inserted into the spiral passage at a location selected based on the size or contour of the cooking vessel, the exhaust system being arranged to withdraw hot gases from the spiral passage and discharge them at a location away from the stovetop” and is allowable by the same or substantially the same rationale as articulated with regards to claim 11, above. The other claims are allowable at least because they depend from allowable independent claims. Any comments considered necessary by applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance.” Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to LOGAN P JONES whose telephone number is (303)297-4309. The examiner can normally be reached Mon-Fri 8:30-5:00 EST. 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 Hoang can be reached at (571) 272-6460. 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. /LOGAN P JONES/Examiner, Art Unit 3762
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Prosecution Timeline

Feb 20, 2024
Application Filed
Aug 26, 2024
Non-Final Rejection — §112
Jan 29, 2025
Response Filed
Jun 04, 2025
Final Rejection — §112
Aug 11, 2025
Response after Non-Final Action
Dec 09, 2025
Request for Continued Examination
Dec 21, 2025
Response after Non-Final Action
Jan 23, 2026
Non-Final Rejection — §112 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
42%
Grant Probability
72%
With Interview (+30.4%)
3y 6m
Median Time to Grant
High
PTA Risk
Based on 511 resolved cases by this examiner. Grant probability derived from career allow rate.

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