Prosecution Insights
Last updated: April 19, 2026
Application No. 18/300,893

COOKTOP APPLIANCE AND METHODS OF BURNER LEVEL RESPONSE

Non-Final OA §102§112
Filed
Apr 14, 2023
Examiner
QUANDT, MICHAEL M
Art Unit
3745
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Haier US Appliance Solutions Inc.
OA Round
1 (Non-Final)
63%
Grant Probability
Moderate
1-2
OA Rounds
3y 1m
To Grant
83%
With Interview

Examiner Intelligence

Grants 63% of resolved cases
63%
Career Allow Rate
305 granted / 486 resolved
-7.2% vs TC avg
Strong +20% interview lift
Without
With
+19.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
41 currently pending
Career history
527
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
31.6%
-8.4% vs TC avg
§102
30.5%
-9.5% vs TC avg
§112
34.8%
-5.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 486 resolved cases

Office Action

§102 §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 . Claim Objections Claims 8 and 17 are objected to because of the following informalities: i. Claims 8 and 17 each end with a comma instead of a period (MPEP 608.01(m)). Appropriate correction is required. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 6 and 15 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 6 recites the limitation "the common burner" in line 2. There is insufficient antecedent basis for this limitation in the claim. Claim 15 recites the limitation "the common burner" in line 2. There is insufficient antecedent basis for this limitation in the claim. 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. Claims 1, 2, 6, 8, 10, 11, 15, and 17 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Yun (US 2018/0242406). Regarding Claim 1, A cooktop appliance, comprising: a cooktop plate (102, ex. Fig. 2, [0056]) defining an upper cooking surface; a capacitance grid (ex. [0073-0081, 0165--0172]) mounted to the cooktop plate; a plurality of burners (with M1-M4 , ex. [0057-0058], see also Figs. 2, 4, ex. [0075-0077]), each burner of the plurality of burners comprising an electric heating element (L, ex. [0058, 0072, 0076], Figs. 2, 4) mounted below the cooktop plate; and a controller (110) operatively coupled to the capacitance grid and the plurality of burners (ex. [0113, 0116, 0136-0143, 0196-0200] Figs. 4, 6, 11-13, 24-25), the controller being configured to direct a cooking operation comprising receiving a plurality of capacitance signals from the capacitance grid (ex. [0235, 0259]) ,detecting a capacitance delta based on the plurality of capacitance signals (ex. [0240-0247]), identifying a burner level of an engaged burner of the plurality of burners based on the detected capacitance delta (ex. [0158-160]), and directing a responsive action on the cooktop appliance based on the identified burner level (ex. [0158-160, 0108, 0114, 0180-0181, 0240-0245]). Regarding Claim 2, The cooktop appliance of claim 1, wherein the plurality of capacitance signals are received from a plurality of points (ex. Fig. 4) corresponding to the engaged burner. Regarding Claim 6, The cooktop appliance of claim 2, wherein each point of the plurality of points is disposed along a predetermined outline surrounding the common burner (ex. Fig. 2, [0057]). Regarding Claim 8, The cooktop appliance of claim 1, wherein identifying the burner level comprises determining an active burner based on the capacitance delta (ex. [0171-0182]), Regarding Claim 10, A method of operating a cooktop appliance comprising a cooktop plate (102, ex. Fig. 2, [0056]) defining an upper cooking surface, a capacitance grid (ex. [0073-0081, 0165--0172]) mounted to the cooktop plate, a plurality of burners (with M1-M4 , ex. [0057-0058], see also Figs. 2, 4, ex. [0075-0077]), each burner of the plurality of burners comprising an electric heating element (L, ex. [0058, 0072, 0076], Figs. 2, 4) mounted below the cooktop plate, the method comprising: receiving a plurality of capacitance signals from the capacitance grid (ex. [0235, 0259]); detecting a capacitance delta based on the plurality of capacitance signals (ex. [0240-0247]); identifying a burner level of an engaged burner of the plurality of burners based on the detected capacitance delta (ex. [0158-160]); and directing a responsive action on the cooktop appliance based on the identified burner level (ex. [0158-160, 0108, 0114, 0180-0181, 0240-0245]). Regarding Claim 11, The method of claim 10, wherein the plurality of capacitance signals are received from a plurality of points (ex. Fig. 4) corresponding to the engaged burner. Regarding Claim 15, The method of claim 11, wherein each point of the plurality of points is disposed along a predetermined outline surrounding the common burner (ex. Fig. 2, [0057]). Regarding Claim 17, The method of claim 10, wherein identifying the burner level comprises determining an active burner based on the capacitance delta (ex. [0171-0182]), Allowable Subject Matter Claims 3-5, 7, 9, 12-14, 16, and 18 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 The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Those items on the 892 each teach elements of the instant invention related to cooktops. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MICHAEL QUANDT whose telephone number is (571)272-1247. The examiner can normally be reached Monday-Thursday 10am-5pm. 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, NATHANIEL WIEHE can be reached at (571)272-8648. 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. MICHAEL QUANDT Examiner Art Unit 3745 /MICHAEL QUANDT/Examiner, Art Unit 3745
Read full office action

Prosecution Timeline

Apr 14, 2023
Application Filed
Jan 23, 2026
Non-Final Rejection — §102, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12590596
WORKING MACHINE AND CONTROL METHOD THEREFOR
2y 5m to grant Granted Mar 31, 2026
Patent 12577964
PNEUMATIC STEPPER MOTOR AND DEVICE COMPRISING AT LEAST ONE SUCH PNEUMATIC STEPPER MOTOR
2y 5m to grant Granted Mar 17, 2026
Patent 12565759
HYDRAULIC SYSTEM FOR WORKING MACHINE
2y 5m to grant Granted Mar 03, 2026
Patent 12565760
Work Machine
2y 5m to grant Granted Mar 03, 2026
Patent 12565902
FLUID CIRCUIT
2y 5m to grant Granted Mar 03, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
63%
Grant Probability
83%
With Interview (+19.8%)
3y 1m
Median Time to Grant
Low
PTA Risk
Based on 486 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month