Prosecution Insights
Last updated: May 29, 2026
Application No. 18/259,586

ELECTROMAGNETIC HEATING DEVICE, NOISE SUPPRESSION METHOD, HEATING CONTROL SYSTEM, AND STORAGE MEDIUM

Non-Final OA §102
Filed
Jun 28, 2023
Priority
Dec 29, 2020 — CN 202011587915.9 +1 more
Examiner
NGUYEN, PHUONG T
Art Unit
3761
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co., Ltd.
OA Round
1 (Non-Final)
74%
Grant Probability
Favorable
1-2
OA Rounds
3m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allowance Rate
599 granted / 812 resolved
+3.8% vs TC avg
Strong +37% interview lift
Without
With
+36.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
43 currently pending
Career history
848
Total Applications
across all art units

Statute-Specific Performance

§101
1.5%
-38.5% vs TC avg
§103
73.9%
+33.9% vs TC avg
§102
10.0%
-30.0% vs TC avg
§112
2.2%
-37.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 812 resolved cases

Office Action

§102
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 . Response for Election/Restrictions Applicant's election without traverse of Group I (claims 1-6) in the reply filed on 06/28/2023 is acknowledged. Non-elected Group II (claim 7) and Group III (claims 8-17) are withdrawn from consideration. The requirement is still deemed proper and is therefore made FINAL. Information Disclosure Statement The information disclosure statement (IDS) submitted on 08/01/2024, 08/02/2024, 12/30/2024, and 04/30/2025. The submission is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. Specification The title of the invention is not descriptive. A new title is required that is clearly indicative of the invention to which the claims are directed. In this case, the present title is too long. See MPEP 606.01. Claim Objections Claim 6 is objected to because of the following informalities: In claim 6: the limitation: “an electromagnetic heating device” as cited in line 2, should be changed to --the electromagnetic heating device--. 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. Claims 1-6 are rejected under 35 U.S.C. 102(a1) as being anticipated by Cho et al. (US 20100237065 A1). Regarding claim 1, Cho discloses An electromagnetic noise suppression method for an electromagnetic heating device (heating device 1, fig.1), comprising: in response to determining that any two adjacent heating modules (first induction coil 11a, second induction coil 11b, fig.1) of the electromagnetic heating device (heating device 1) operate successively, obtaining a start operating frequency of a last-started heating module of the two adjacent heating modules (first induction coil 11a, second induction coil 11b) [Par.0019 cited: “…operating the control panel 12, a corresponding adjusting signal K.sub.1 is transmitted to the controlling unit 14 …”]; and adjusting an operating frequency of a first-started heating module of the two adjacent heating modules (first induction coil 11a, second induction coil 11b) based on the start operating frequency of the last-started heating module [Par.0021 cited: “…After the adjusting signal K.sub.1 is received, the controlling unit 14 issues a control signal K.sub.2 to the power supply unit 13 by computation.…”], to allow the two adjacent heating modules (first induction coil 11a, second induction coil 11b) to operate synchronously at a same operating frequency when the last-started heating module starts operating [Par.0021 cited: “…first frequency f.sub.1 of the first power signal W.sub.1 and the second frequency f.sub.2 of the second power signal W.sub.2 are determined …”]. PNG media_image1.png 432 576 media_image1.png Greyscale Regarding claim 2, Cho discloses said adjusting the operating frequency of the first-started heating module of the two adjacent heating modules (first induction coil 11a, second induction coil 11b, fig.1) based on the start operating frequency of the last-started heating module comprises: in response to controlling the operating frequency of the first-started heating module to be reduced to the start operating frequency of the last-started heating module [Par.0021 cited: “…After the adjusting signal K.sub.1 is received, the controlling unit 14 issues a control signal K.sub.2 to the power supply unit 13 by computation.…”], controlling the last-started heating module to start operating synchronously at an operating frequency equivalent to that of the first-started heating module [Par.0021 cited: “…first frequency f.sub.1 of the first power signal W.sub.1 and the second frequency f.sub.2 of the second power signal W.sub.2 are determined …”]. Regarding claim 3, Cho discloses said adjusting the operating frequency of the first-started heating module of the two adjacent heating modules (first induction coil 11a, second induction coil 11b, fig.1) based on the start operating frequency of the last-started heating module comprises: controlling the first-started heating module to stop operating (stopped by controlling unit 14, fig.1), and controlling, after a predetermined time period based on the start operating frequency of the last-started heating module [Par.0042 cited: “…the first time interval T.sub.a1, the second time interval T.sub.a2, the heat quantity P.sub.11, P.sub.21 and P.sub.22 are determined by the controlling unit 14…”], the first-started heating module and the last-started heating module to start operating synchronously [Par.0021 cited: “…first frequency f.sub.1 of the first power signal W.sub.1 and the second frequency f.sub.2 of the second power signal W.sub.2 are determined …”]. Regarding claim 4, Cho discloses operating frequency change trends of the two adjacent heating modules (first induction coil 11a, second induction coil 11b, fig.1) are kept consistent after the two adjacent heating modules (first induction coil 11a, second induction coil 11b) operate synchronously at the same operating frequency [Par.0021 cited: “…first frequency f.sub.1 of the first power signal W.sub.1 and the second frequency f.sub.2 of the second power signal W.sub.2 are determined …”]. Regarding claim 5, Cho discloses during a synchronous operation of the two adjacent heating modules (first induction coil 11a, second induction coil 11b, fig.1), duty ratios of Pulse Width Modulation (PWM) signals of the two adjacent heating modules (first induction coil 11a, second induction coil 11b, fig.1) are independently adjustable from 0% to 50% [Abstract cited: “…Electrical energy is transmitted to the first induction coil and the second induction coil and the frequency difference between the first power and the second power is greater than 15 kHz or smaller than 1 kHz during a first time interval under control of the controlling unit…”]. Regarding claim 6, Cho discloses A computer-readable storage medium (control panel 12, fig.1), having an electromagnetic noise suppression program for an electromagnetic heating device (heating device 1, fig.1) stored thereon, wherein the electromagnetic noise suppression program for the electromagnetic heating device (heating device 1), when executed by a processor (digital signal processor (DSP), Par.0019), implements the electromagnetic noise suppression method for the electromagnetic heating device (heating device 1). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Boys et al. (US 5450305) is a relevant prior art in field of an electromagnetic, as shown in fig.10, with resonant power supplies comprising an induction heater, but this prior art cannot perform the method steps of obtaining a start operating frequency of a last-started heating module of the two adjacent heating modules; and adjusting an operating frequency of a first-started heating module of the two adjacent heating modules… Any inquiry concerning this communication or earlier communications from the examiner should be directed to PHUONG T NGUYEN whose telephone number is (571)270-1834. The examiner can normally be reached 9.00am-5.00pm. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Steven Crabb can be reached on 571-270-5095. 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. /PHUONG T NGUYEN/Primary Examiner, Art Unit 3761 05/03/2026
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Prosecution Timeline

Jun 28, 2023
Application Filed
May 07, 2026
Non-Final Rejection mailed — §102 (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

1-2
Expected OA Rounds
74%
Grant Probability
99%
With Interview (+36.7%)
3y 3m (~3m remaining)
Median Time to Grant
Low
PTA Risk
Based on 812 resolved cases by this examiner. Grant probability derived from career allowance rate.

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