Prosecution Insights
Last updated: July 17, 2026
Application No. 18/497,702

BATTERY CHARGING APPARATUS

Non-Final OA §DP
Filed
Oct 30, 2023
Priority
Jun 22, 2023 — RE 10-2023-0080529
Examiner
PACHECO, ALEXIS BOATENG
Art Unit
Tech Center
Assignee
Kia Corporation
OA Round
1 (Non-Final)
78%
Grant Probability
Favorable
1-2
OA Rounds
1m
Est. Remaining
91%
With Interview

Examiner Intelligence

Grants 78% — above average
78%
Career Allowance Rate
781 granted / 999 resolved
+18.2% vs TC avg
Moderate +13% lift
Without
With
+12.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
52 currently pending
Career history
1049
Total Applications
across all art units

Statute-Specific Performance

§101
1.4%
-38.6% vs TC avg
§103
79.8%
+39.8% vs TC avg
§102
10.0%
-30.0% vs TC avg
§112
0.7%
-39.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 999 resolved cases

Office Action

§DP
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 . Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1 – 18 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims of copending Application No. 20250079875 (reference application). Although the claims at issue are not identical, they are not patentably distinct from each other because claims of the instant application are covered by the reference claims. This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. Current Application 18/497,702 USPGPUB 20250079875 Claim 1: A battery charging apparatus comprising: a charging and discharging port comprising first to third charging and discharging alternating-current terminals and a neutral terminal, the battery charging apparatus being configured to transfer an external electric power to a battery through the charging and discharging port or transfer a battery electric power of the battery to an external source through the charging and discharging port; a power factor correction circuit comprising first to third inductors that correspond to the first to third charging and discharging alternating-current terminals, respectively; a first relay electrically coupled between the first charging and discharging alternating-current terminal and the first inductor; an interleave relay, one terminal of the interleave relay being electrically coupled between the first charging and discharging alternating-current terminal and the first relay, and another terminal of the interleave relay being electrically coupled between the second charging and discharging alternating-current terminal and the second inductor; and a controller configured to control a connected or disconnected state of the first relay and a connected or disconnected state of the interleave relay. Claim 1: A charging and discharging apparatus for a vehicle, the apparatus comprising: a charging/discharging port comprising a first AC terminal, a second AC terminal, a third AC terminal, and a neutral terminal, the charging/discharging port being configured to transmit external power to a battery or to transmit power of the battery to an exterior of the charging/discharging port; a power factor correction circuit comprising a plurality of inductors respectively corresponding to the first AC terminal, the second AC terminal, and the third AC terminal; an input filter unit comprising a first switch configured to selectively interconnect the first AC terminal and a first corresponding one of the inductors, a second switch configured to selectively interconnect the second AC terminal and a second corresponding one of the inductors, and a third switch configured to selectively interconnect the third AC terminal and a third corresponding one of the inductors; a surge protection circuit unit connected between the first to third AC terminals and a ground, and connected to form a current path to the ground in response to a surge being generated at one or more of the first AC terminal, the second AC terminal, or the third AC terminal; and a controller configured to sequentially turn off the second switch and the third switch in response to charging through the first to third AC terminals being ended. Claim 1: A battery charging apparatus comprising: a charging and discharging port comprising first to third charging and discharging alternating-current terminals and a neutral terminal, the battery charging apparatus being configured to transfer an external electric power to a battery through the charging and discharging port or transfer a battery electric power of the battery to an external source through the charging and discharging port; a power factor correction circuit comprising first to third inductors that correspond to the first to third charging and discharging alternating-current terminals, respectively; a first relay electrically coupled between the first charging and discharging alternating-current terminal and the first inductor; an interleave relay, one terminal of the interleave relay being electrically coupled between the first charging and discharging alternating-current terminal and the first relay, and another terminal of the interleave relay being electrically coupled between the second charging and discharging alternating-current terminal and the second inductor; and a controller configured to control a connected or disconnected state of the first relay and a connected or disconnected state of the interleave relay. Claim 2: The apparatus of claim 1, wherein the input filter unit further comprises an interleaving switch configured to selectively interconnect the first AC terminal and the second AC terminal. Allowable Subject Matter Claims 19 – 20 are allowed. The following is an examiner’s statement of reasons for allowance: Regarding claim 19, the prior art does not teach or suggest the combination of inter alia, a bidirectional battery charging apparatus, such as one used in an electrified vehicle. The system can charge a battery from outside power, or send power from the battery back out to an external device or grid. It uses a charging/discharging port with multiple AC terminals and a power factor correction circuit with inductors to manage incoming and outgoing power. A first relay and an interleave relay are used together so the electrical isolation job can be shared rather than handled by one large relay. The controller opens and closes those relays depending on whether the device is charging or discharging. In some modes, the apparatus can accept single-phase AC power; in others, it can accept three-phase AC power. The apparatus may also include a pre-charging relay and resistor to soften startup conditions. A separate discharging port can be used to output battery power independently or together with the charging/discharging port. The controller coordinates several relays so the battery can power different external outputs safely. The main idea is to reduce relay size and cost while still providing reliable isolation and flexible power flow. Specifically, the claims state: Charging/discharging port with first to third AC terminals and neutral terminal for bidirectional power flow. Power factor correction circuit with three inductors matched to the three AC terminals. First relay and interleave relay arranged so input/output current is shared between two paths. Pre-charging relay and pre-charging resistor used during startup to stabilize voltage before full connection. Optional discharging port with discharging relay for battery-to-load output through a separate path. Regarding claim 20, the claim recites similar limitations as claim 19 and is therefore allowable. As disclosed above, the prior art does not teach or suggest the combination of inter alia, a bidirectional battery charging apparatus, such as one used in an electrified vehicle. The system can charge a battery from outside power, or send power from the battery back out to an external device or grid. It uses a charging/discharging port with multiple AC terminals and a power factor correction circuit with inductors to manage incoming and outgoing power. A first relay and an interleave relay are used together so the electrical isolation job can be shared rather than handled by one large relay. The controller opens and closes those relays depending on whether the device is charging or discharging. In some modes, the apparatus can accept single-phase AC power; in others, it can accept three-phase AC power. The apparatus may also include a pre-charging relay and resistor to soften startup conditions. A separate discharging port can be used to output battery power independently or together with the charging/discharging port. The controller coordinates several relays so the battery can power different external outputs safely. The main idea is to reduce relay size and cost while still providing reliable isolation and flexible power flow. Specifically, the claims state: Charging/discharging port with first to third AC terminals and neutral terminal for bidirectional power flow. Power factor correction circuit with three inductors matched to the three AC terminals. First relay and interleave relay arranged so input/output current is shared between two paths. Pre-charging relay and pre-charging resistor used during startup to stabilize voltage before full connection. Optional discharging port with discharging relay for battery-to-load output through a separate path. 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 The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Us 20210188106 A1 Wireless Power System Asa; Erdem Et Al. Us 20200122585 A1 Reconfigurable Micro-Grid Bhat; Krishna Prasad Et Al. Us 20200290474 A1 Charging System For Electric Vehicles Cashdollar; Hayley Et Al. Us 20170001585 A1 Operating An On-Board Electrical System Fink; Holger Us 20160311328 A1 Battery Control Method Kim; Youngjae Et Al. Us 20160016479 A1 An Integrated Dual-Output Grid to vehicle Khaligh; Alireza Et Al. Us 20170320396 A1 Bidirectional Powering On-Board Charger Kim; Jee Heon Et Al. Us 20150054466 A1 Electric-Motor Vehicle Kinomura; Shigeki Us 20140225437 A1 Power Supply and feeding System Mizuno; Tomoyuki Us 20200185936 A1 Power Supply System Oishi; Eiichiro Et Al. Us 20200282853 A1 Combined BMS Charger Paryani; Anil Et Al. Us 20220009373 A1 EV Home Microgrid Power System Patel; Himanshu B. Us 9263968 B2 Bidirectional Inverter-Charger Potts; Dennis L. Et Al. Us 11383607 B1 Bi-Directional Electrical Charging Prasad; Rashmi Et Al. Us 20160176310 A1 Hybrid Vehicle Sato; Keita Et Al. Us 20210155104 A1 Bi-Directional Power Conversion Skutt; Glenn Et Al. Us 20200298722 A1 Integrated Charging System For An EV Smolenaers; Stefan Us 20220216791 A1 In-Vehicle Power Supply System Tanaka; Hideki Et Al. Us 20120206104 A1 Electric Power Supply System Tsuchiya; Shizuo Us 20200070672 A1 Electric Vehicle Battery Charger Vahedi; Hani Et Al. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ALEXIS B PACHECO whose telephone number is (571)272-5979. The examiner can normally be reached M-F 9:00 - 5:30. 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, Julian Huffman can be reached at 571-272-2147. 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. ALEXIS BOATENG PACHECO Primary Examiner Art Unit 2859 /ALEXIS B PACHECO/Primary Examiner, Art Unit 2859
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Prosecution Timeline

Oct 30, 2023
Application Filed
Jun 22, 2026
Non-Final Rejection mailed — §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12673566
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Patent 12662020
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Patent 12643433
ELECTRIFIED VEHICLE AND METHOD OF CONTROLLING BATTERY CONDITIONING THEREFOR
3y 8m to grant Granted Jun 02, 2026
Patent 12646758
BATTERY ADAPTIVE CHARGING USING BATTERY PHYSICAL PHENOMENA
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3y 9m to grant Granted May 26, 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
78%
Grant Probability
91%
With Interview (+12.6%)
2y 10m (~1m remaining)
Median Time to Grant
Low
PTA Risk
Based on 999 resolved cases by this examiner. Grant probability derived from career allowance rate.

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