Prosecution Insights
Last updated: April 19, 2026
Application No. 18/314,049

POWER SUPPLY DEVICE FOR WARM-KEEPING AND HEATING OF CONTAINER

Non-Final OA §102§103
Filed
May 08, 2023
Examiner
WIBLIN, MATTHEW
Art Unit
3745
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Shenzhen Dingcheng Litian Technology Co. Ltd.
OA Round
1 (Non-Final)
74%
Grant Probability
Favorable
1-2
OA Rounds
2y 7m
To Grant
98%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allow Rate
466 granted / 632 resolved
+3.7% vs TC avg
Strong +24% interview lift
Without
With
+24.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
27 currently pending
Career history
659
Total Applications
across all art units

Statute-Specific Performance

§101
1.1%
-38.9% vs TC avg
§103
39.5%
-0.5% vs TC avg
§102
26.1%
-13.9% vs TC avg
§112
30.6%
-9.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 632 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 . 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. -(a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claims 1-4 are rejected under 35 U.S.C. 102(a)(1), 102(a)(2) as being anticipated by ZHENG, Liu-ke CN 210581983 U, hereinafter Zheng. Regarding claim 1, Zheng discloses (Fig. 1-2) a power supply device for warm-keeping and heating of a container, comprising a bottom case (2) and a heating device (9/3); wherein the heating device comprises a battery (9) and a heating plate (3), the battery being arranged in the bottom case, and the battery supplying power to the heating plate located on an upper end of the bottom case through a wire [0041]. Regarding claim 2, Zheng discloses (Fig. 1-2) an upper end of an inner cavity of the bottom case is provided with a sealing support (“top of the cup body base 2” [0048]) and a sealing ring (10), and the sealing ring mounted on an outer wall of the sealing support is configured to seal a gap between the bottom case and the sealing support [0048]. Regarding claim 3, Zheng discloses (Fig. 1-2) further comprising a heat insulation pad (4), wherein the heat insulation pad is arranged between the heating plate and the sealing support (depicted as located between). Regarding claim 4, Zheng discloses (Fig. 1-2) a mounting support (6) is arranged in the bottom case, and the battery is mounted and fixed in the bottom case through the mounting bracket (the battery is located as arranged on (6/7) and encased by (6/7) thereby interfacing with (2) through (6/7)). 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 of this title, 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 5 is rejected under 35 U.S.C. 103 as being unpatentable over Zheng. Regarding claim 5, Zheng discloses the claimed invention substantially as claimed, as set forth above for Claim 4. Zheng further discloses (Fig. 1-2) further comprising a main board (7) arranged in the bottom case, and a power button (18) and a plurality of indicator lights (11), wherein the power button is electrically connected to the main board through a conductive ring (this term appears to be a translational error and has been interpreted as an electrical connection, [0043] indicates that (18) is electrically connected to (16 or 17)). Zheng fails to explicitly state that the power button and a plurality of indicator lights are arranged on a bottom surface of the bottom case. Since applicant has not disclosed that having a power button and indicator lights arranged on a bottom surface of the bottom case solves any stated problem or is for any particular purpose, and it appears that a power button and indicator lights being arranged on another surface of the bottom case, of Zheng would perform equally well with the power button and indicator lights being arranged on a bottom surface of the bottom case as claimed by applicant, it would have been an obvious matter of design choice to further modify the power button and indicator lights being arranged on another surface of the bottom case of Zheng by utilizing the power button and indicator lights being arranged on a bottom surface of the bottom case as claimed for the purpose of controlling the power supply of the heating plate. Claim 6 is rejected under 35 U.S.C. 103 as being unpatentable over Zheng in view of Partovi; Afshin US 20120235636 A1, hereinafter Partovi. The references is/are considered analogous art to the claimed invention because the references is/are reasonably pertinent to the problem faced by the inventor (wireless charging). MPEP2141.01(a) I. Regarding claim 6, Zheng discloses the claimed invention substantially as claimed, as set forth above for Claim 4. Zheng further discloses (Fig. 1-2) further comprising a wireless charging device (8) for charging the battery [0045]. Zheng fails to explicitly state that the power supply device further comprises a magnet cooperating with the wireless charging device is arranged in the bottom case. Partovi discloses (Fig. 1) a power supply device (“receiver”) comprising a battery (“battery” [0091]) and a wireless charging device (100) for charging the battery [0060] and a magnet “magnet” cooperating with the wireless charging device [0123], for the purpose of aiding in alignment of the wireless charging device [0123]. It would have been obvious to one of ordinary skill in the art, at the time the invention was filed, to modify Zheng, by providing a magnet cooperating with the wireless charging device, as taught by Partovi, for the purpose of aiding in alignment of the wireless charging device. Relevant Art The following is a listing of relevant art: US 20230233018 A1, US 20220104645 A1, US 10772464 B1 and US 20150245723 A1 discloses a container heating device. Contact Information Any inquiry concerning this communication or earlier communications from the examiner should be directed to MATTHEW WIBLIN whose telephone number is (571)272-9836. The examiner can normally be reached on Monday-Friday 8:00 am - 4:00 pm. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, NATHANIEL WIEHE can be reached on 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 an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /MATTHEW WIBLIN/ Examiner, Art Unit 3745
Read full office action

Prosecution Timeline

May 08, 2023
Application Filed
Dec 11, 2025
Non-Final Rejection — §102, §103 (current)

Precedent Cases

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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
98%
With Interview (+24.4%)
2y 7m
Median Time to Grant
Low
PTA Risk
Based on 632 resolved cases by this examiner. Grant probability derived from career allow rate.

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