Prosecution Insights
Last updated: April 19, 2026
Application No. 18/251,748

CHARGING PLUG HOLDER FOR DC QUICK-CHARGING CABLE

Non-Final OA §102§103
Filed
May 04, 2023
Examiner
PELTON, NATHANIEL R
Art Unit
2859
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Siemens Aktiengesellschaft
OA Round
1 (Non-Final)
75%
Grant Probability
Favorable
1-2
OA Rounds
2y 9m
To Grant
94%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allow Rate
546 granted / 729 resolved
+6.9% vs TC avg
Strong +19% interview lift
Without
With
+18.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
33 currently pending
Career history
762
Total Applications
across all art units

Statute-Specific Performance

§101
1.1%
-38.9% vs TC avg
§103
53.5%
+13.5% vs TC avg
§102
23.5%
-16.5% vs TC avg
§112
13.0%
-27.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 729 resolved cases

Office Action

§102 §103
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 . Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. Information Disclosure Statement The information disclosure statement (IDS) submitted on 05/04/2023 is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. Response to Amendment Acknowledgement is made of the preliminary amendment filed on 05/04/2023 in which claims 1-10 were canceled and claims 11-21 added. Therefore, claims 11-21 are pending for examination below. 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. Claim(s) 11-13 and 15-18 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Sakurai [US 2010/0315040]. With respect to claim 11, Sakurai discloses a charging device for DC charging of electric vehicles [Fig. 1A], the charging device comprising: a housing [51]; power electronics disposed in said housing [see fig. 2, i.e. at least converter 54]; a charging cable connected to said power electronics and leading out of said housing [52], said charging cable having a charging plug at a distal end, said charging plug having a grip portion and a contact portion [par. 0059]; and a charging plug holder disposed on said housing and is configured to hold said charging plug [see fig. 3], said charging plug holder having a first depression formed therein and sized and shaped to receive said contact portion of said charging plug in an insertion direction and to hold said charging plug in a standby state of the charging device [par. 0060]. With respect to claim 12, Sakurai further discloses wherein said grip portion of said charging plug is disposed outside of said first depression in the standby state [fig. 4A]. With respect to claim 13, Sakurai further discloses wherein said contact portion of said charging plug is held in a frictionally engaged manner by said first depression in the standby state [fig. 4B]. With respect to claim 15, Sakurai further discloses wherein said first depression extends around a center axis running in the insertion direction and is defined by a bottom surface, through which the center axis passes, and a lateral surface facing the center axis [75]. With respect to claim 16, Sakurai further discloses wherein the center axis forms an acute angle to a horizontal line and the center axis rises in a direction opposite to the insertion direction [as illustrated in figs 4a-4b]. With respect to claim 17, Sakurai further discloses wherein said first depression has an inner shape that corresponds at least approximately to an envelope body of said contact portion of said charging plug [as illustrated in figs 4a-4b]. With respect to claim 18, Sakurai further discloses wherein said charging plug holder has a second depression formed therein and surrounds an opening of said first depression, such that at least a portion of said grip portion of said charging plug in the standby state is disposed in said second depression and spaced from a wall of said charging plug holder defining said second depression [74]. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claim(s) 14 is/are rejected under 35 U.S.C. 103 as being unpatentable over Sakurai [US 2010/0315040] as applied above, and further in view of Effenberger et al. [US 2019/0047426]. With respect to claim 14, Sakurai fails to explicitly disclose wherein said first depression tapers along the insertion direction. However, Effenberger relates to an electric vehicle charging plug connection and teaches incorporating a tapering element along an insertion direction [par. 0055]. Therefore, it would have been obvious to a person having ordinary skill in the art before the filing date of the instant invention to modify Sakurai to incorporate a tapering surface as taught by Effenberger for the benefit of guiding the connection into a secure fit as stated by Effenberger. Claim(s) 19 is/are rejected under 35 U.S.C. 103 as being unpatentable over Sakurai [US 2010/0315040] as applied above, and further in view of Moseke [US 2017/0054248]. With respect to claim 19, Sakurai fails to explicitly disclose wherein said charge plug holder has a drainage channel formed therein and leading from a lowest point of said first depression into a surrounding environment of the charging device. However, Moseke relates to a plug-in connector and teaches utilizing drainage holes to lead liquid away from the contact opening [abstract]. Therefore, it would have been obvious to a person having ordinary skill in the art before the filing date of the instant invention to modify Sakurai to incorporate a drainage channel from the lowest point for the benefit of guiding the water/liquid (in which gravity pulls to the lowest point) away from the contacts thereby preventing risks of short circuiting from the circuit components. Claim(s) 19-20 is/are rejected under 35 U.S.C. 103 as being unpatentable over Sakurai [US 2010/0315040] as applied above, and further in view of Herold et al. [US 2020/0298717]. With respect to claims 20-21, Sakurai fails to disclose wherein said charging plug holder is at least partially made of a partially transparent plastic. However, such a concept is well-known in the art. For example, Herold relates to a charging socket recess and teaches being at least partially made of transparent plastic in order to illuminate the socket to facilitate connection [abstract, par. 0049-0061]. While Herold does not explicitly recite “opalescent” he does disclose the plastic is translucent. It would have been obvious to a person having ordinary skill in the art before the filing date of the instant invention to select the type of translucent plastic as being opalescent since there are only a finite number of translucent plastics to choose from and doing so would not invoke undue experimentation or present any unexpected results. Therefore, it would have been obvious to a person having ordinary skill in the art before the filing date of the instant invention to modify Sakurai to utilize a translucent plastic (specifically an opalescent plastic) for the benefit of guiding the user to the connection port by allowing the light to illuminate through the connection structure via the translucent plastic as stated by Herold. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to NATHANIEL R PELTON whose telephone number is (571)270-1761. The examiner can normally be reached M-F 9am to 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, 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. /NATHANIEL R PELTON/Primary Examiner, Art Unit 2859
Read full office action

Prosecution Timeline

May 04, 2023
Application Filed
Feb 07, 2026
Non-Final Rejection — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12603517
CHARGING CIRCUIT AND CHARGING CABLE
2y 5m to grant Granted Apr 14, 2026
Patent 12596153
VOLTAGE TRANSDUCER
2y 5m to grant Granted Apr 07, 2026
Patent 12597795
Systems and Methods for Adaptive USB Charging
2y 5m to grant Granted Apr 07, 2026
Patent 12580393
CONTROL METHOD OF BATTERY APPARATUS AND BATTERY APPARATUS, SYSTEM, AND MEDIUM
2y 5m to grant Granted Mar 17, 2026
Patent 12573860
BATTERY CHARGING/DISCHARGING CONTROL SYSTEM AND ELECTRONIC DEVICE
2y 5m to grant Granted Mar 10, 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
75%
Grant Probability
94%
With Interview (+18.7%)
2y 9m
Median Time to Grant
Low
PTA Risk
Based on 729 resolved cases by this examiner. Grant probability derived from career allow rate.

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