Office Action Predictor
Last updated: April 15, 2026
Application No. 18/299,021

CHARGING DEVICE AND VEHICLE

Non-Final OA §102
Filed
Apr 11, 2023
Examiner
GRANT, ROBERT J
Art Unit
2859
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Byd Company Limited
OA Round
1 (Non-Final)
76%
Grant Probability
Favorable
1-2
OA Rounds
2y 11m
To Grant
99%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allow Rate
587 granted / 771 resolved
+8.1% vs TC avg
Strong +33% interview lift
Without
With
+32.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
30 currently pending
Career history
801
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
60.6%
+20.6% vs TC avg
§102
31.5%
-8.5% vs TC avg
§112
5.6%
-34.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 771 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 . 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, 9-11, and 18 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Jang et al. (USPUB 2018/0334044). As to Claim 1, Jang discloses a charging device, comprising: a power factor correction (PFC) circuit, configured to perform PFC on an input alternating current (AC) and output a direct current (DC) signal after the PFC, wherein the PFC circuit comprises at least three-phase bridge arm (Figure 6); a first DC conversion circuit, wherein an input terminal of the first DC conversion module is connected to an output terminal of the PFC circuit; and an output terminal of the first DC conversion module is connected to a power battery and configured to convert the DC signal after the PFC to a first DC signal (Figure 7, Elements 36-38); a second DC conversion module, wherein an input terminal of the second DC conversion module is connected to the output terminal of the first DC conversion module and the power battery; and an output terminal of the second DC conversion module is connected to a storage battery and configured to convert the first DC signal to a second DC signal (Figure 6, Elements 30, 70, 210, 90); a switch module, wherein a first terminal of the switch module is connected to an input terminal of the PFC circuit; a second terminal of the switch module is connected to an alternating-current input terminal and configured to turn on the three-phase bridge arm of the PFC circuit during three-phase charging or turn on one of the three-phase bridge arm of the PFC circuit during one-way charging (Figure 8, Element 30 and 90); and a control module, respectively connected to control terminals of the PFC circuit, the first DC conversion module, the second DC conversion module, and the switch module and configured to control the charging device to perform single-phase charging or three-phase charging (Figure 6, Element 300). As to Claim 2, Jang discloses the charging device according to claim 1, wherein the second DC conversion module comprises: a boost circuit, wherein an input terminal of the boost circuit is connected to the power battery and configured to boost the first DC signal and output the boosted DC signal; a first half-bridge Inductor-Inductor-Capacitor (LLC) circuit, wherein an input terminal of the first half-bridge LLC circuit is connected to an output terminal of the boost circuit; and an output terminal of the first half-bridge LLC circuit is connected to the storage battery; and a second half-bridge LLC circuit, wherein an input terminal of the second half-bridge LLC circuit is connected to the output terminal of the boost circuit (Figure 8, Element 90); an output terminal of the second half-bridge LLC circuit is connected to the storage battery; a control terminal of the boost circuit, a control terminal of the first half-bridge LLC circuit, and a control terminal of the second half-bridge LLC circuit are all connected to the control module; and the control module is configured to alternately control the first half-bridge LLC circuit and the second half-bridge LLC circuit at a preset phase angle, to convert the boosted DC signal to the second DC signal (Figure 6, Element 300). As to Claim 9, Jang discloses the charging device according to claim 1, wherein the charging device further comprises: a filtering module, wherein an input terminal of the filtering module is connected to the alternating-current input terminal; and an output terminal of the filtering module is connected to the second terminal of the switch module to filter the input AC signal (Figure 7, Element 32). As to Claim 10, Jang discloses a vehicle, comprising: a charging device; and a power battery and a storage battery, wherein the charging device is respectively connected to the power battery and the storage battery to charge the power battery and the storage battery, wherein the charging device comprises: a power factor correction (PFC) circuit, configured to perform PFC on an input alternating current (AC) and output a direct current (DC) signal after the PFC, wherein the PFC circuit comprises at least three-phase bridge arm (Figure 6); a first DC conversion module, wherein an input terminal of the first DC conversion module is connected to an output terminal of the PFC circuit; and an output terminal of the first DC conversion module is connected to the power battery and configured to convert the DC signal after the PFC to a first DC signal (Figure 7, Elements 36-38); a second DC conversion module, wherein an input terminal of the second DC conversion module is connected to the output terminal of the first DC conversion module and the power battery; and an output terminal of the second DC conversion module is connected to the storage battery and configured to convert the first DC signal to a second DC signal (Figure 6, Elements 30, 70, 210, 90); a switch module, wherein a first terminal of the switch module is connected to an input terminal of the PFC circuit; a second terminal of the switch module is connected to an alternating-current input terminal and configured to turn on the three-phase bridge arm of the PFC circuit during three-phase charging or turn on one of the three-phase bridge arm of the PFC circuit during one-way charging (Figure 8, Elements 30 and 90); and a control module, respectively connected to control terminals of the PFC circuit, the first DC conversion module, the second DC conversion module, and the switch module and configured to control the charging device to perform single-phase charging or three-phase charging (Figure 6, Element 300). As to Claim 11, Jang discloses the vehicle according to claim 10, wherein the second DC conversion module comprises: a boost circuit, wherein an input terminal of the boost circuit is connected to the power battery and configured to boost the first DC signal and output the boosted DC signal; a first half-bridge Inductor-Inductor-Capacitor (LLC) circuit, wherein an input terminal of the first half-bridge LLC circuit is connected to an output terminal of the boost circuit; and an output terminal of the first half-bridge LLC circuit is connected to the storage battery; and a second half-bridge LLC circuit, wherein an input terminal of the second half-bridge LLC circuit is connected to the output terminal of the boost circuit; an output terminal of the second half-bridge LLC circuit is connected to the storage battery (Figure 8, Element 90); a control terminal of the boost circuit, a control terminal of the first half-bridge LLC circuit, and a control terminal of the second half-bridge LLC circuit are all connected to the control module; and the control module is configured to alternately control the first half-bridge LLC circuit and the second half-bridge LLC circuit at a preset phase angle, to convert the boosted DC signal to the second DC signal (Figure 6, Element 300). As to Claim 18, Jang discloses the vehicle according to claim 10, wherein the charging device further comprises: a filtering module, wherein an input terminal of the filtering module is connected to the alternating-current input terminal; and an output terminal of the filtering module is connected to the second terminal of the switch module to filter the input AC signal (Figure 7, Element 32). Allowable Subject Matter Claims 3-8, and 12-17 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 ROBERT J GRANT whose telephone number is (571)270-5820. The examiner can normally be reached Monday - Friday 9am - 5:30pm. 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, Drew Dunn can be reached at (571)272-2312. 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. /ROBERT GRANT/Primary Examiner, Art Unit 2859
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Prosecution Timeline

Apr 11, 2023
Application Filed
Jan 24, 2026
Non-Final Rejection — §102
Apr 02, 2026
Response Filed

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12603512
WEARABLE CHARGER ASSEMBLY
2y 5m to grant Granted Apr 14, 2026
Patent 12596154
BATTERY SYSTEM AND METHOD FOR CONTROLLING A BATTERY SYSTEM
2y 5m to grant Granted Apr 07, 2026
Patent 12592573
HYBRID GENERATOR WITH DETACHABLE POWER UNIT AND PANEL INTEGRATION
2y 5m to grant Granted Mar 31, 2026
Patent 12573863
MULTI-LEVEL MITIGATION SYSTEM AND METHOD FOR MANAGING AN EMERGENCY BATTERY CONDITION BASED ON SEVERITY
2y 5m to grant Granted Mar 10, 2026
Patent 12556017
ADVANCED BATTERY CHARGING ON MODULAR LEVELS OF ENERGY STORAGE SYSTEMS
2y 5m to grant Granted Feb 17, 2026
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
76%
Grant Probability
99%
With Interview (+32.7%)
2y 11m
Median Time to Grant
Low
PTA Risk
Based on 771 resolved cases by this examiner. Grant probability derived from career allow rate.

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