Prosecution Insights
Last updated: August 14, 2026
Application No. 18/805,977

LIQUID LEAKAGE DETECTION DEVICE AND LIQUID LEAKAGE DETECTION SENSOR

Non-Final OA §102§103
Filed
Aug 15, 2024
Priority
May 10, 2024 — CN 202421015170.2
Examiner
FRANK, RODNEY T
Art Unit
Tech Center
Assignee
Shenzhen Envicool Technology Co. Ltd.
OA Round
1 (Non-Final)
73%
Grant Probability
Favorable
1-2
OA Rounds
1y 1m
Est. Remaining
76%
With Interview

Examiner Intelligence

Grants 73% — above average
73%
Career Allowance Rate
672 granted / 923 resolved
+12.8% vs TC avg
Minimal +4% lift
Without
With
+3.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
31 currently pending
Career history
943
Total Applications
across all art units

Statute-Specific Performance

§101
5.0%
-35.0% vs TC avg
§103
46.6%
+6.6% vs TC avg
§102
18.1%
-21.9% vs TC avg
§112
26.7%
-13.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 923 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)(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. Claim(s) 1, 2, 5, 10, 11, and 14 are is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Hu et al. (U.S. Patent Application Publication Number 2024/0247996; hereinafter referred to as Hu). With respect to claim 1, Hu discloses and teaches a liquid leakage detection sensor, comprising: a first liquid leakage detection portion for detecting liquid leakage at a first liquid leakage detection position of a liquid cooling device (see at least Figures 1 and 2) and a second liquid leakage detection portion for detecting liquid leakage at a second liquid leakage detection position of the liquid cooling device (see at least Figures 1 and 2), wherein the first liquid leakage detection portion and the second liquid leakage detection portion are integrally formed (see at least Figures 1 and 2). With respect to claim 2, Hu discloses the liquid leakage detection sensor according to claim 1, wherein the first liquid leakage detection portion and/or the second liquid leakage detection portion are each provided with a connection terminal that is in connection with another liquid leakage detection sensor or a liquid leakage collector (see at least Figures 1 and 2). With respect to claim 3, the liquid leakage detection sensor according to claim 2, wherein the first liquid leakage detection portion is a liquid leakage detection band for detecting liquid leakage from a supply pipeline of the liquid cooling device. With respect to claim 5, Hu discloses the liquid leakage detection sensor according to claim 4, wherein the liquid leakage detection sensor comprises a third liquid leakage detection portion, and the first liquid leakage detection portion, the second liquid leakage detection portion, and the third liquid leakage detection portion are distributed in a listed sequence and are integrally formed (see at least Figures 1 and 2). With respect to claim 10, Hu discloses a liquid leakage detection device, comprising the liquid leakage detection sensor according to claim 1 (see at least Figures 1 and 2). With respect to claim 11, Hu discloses liquid leakage detection device, comprising the liquid leakage detection sensor according to claim 2 (see at least Figures 1 and 2). With respect to claim 14, Hu discloses liquid leakage detection device, comprising the liquid leakage detection sensor according to claim 5 (see at least Figures 1 and 2). 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) 3, 4, 6 – 9, 12, 13, and 15-18 is/are rejected under 35 U.S.C. 103 as being unpatentable over Hu. With respect to claim 3, the liquid leakage detection sensor according to claim 2, wherein the first liquid leakage detection portion is a liquid leakage detection band for detecting liquid leakage from a supply pipeline of the liquid cooling device is not explicitly disclosed by Hu. However, Hu does disclose with respect to Figure 6 that the leakage detection portion can take on various forms. Therefore, it would have been obvious to one skilled in the art at the time the invention was filed to make the liquid leakage detection portion in the shape of a band in order to allow for a flat designed leakage detection that would easily fit onto the cooling plate. With respect to claim 4. The liquid leakage detection sensor according to claim 3, wherein the second liquid leakage detection portion is a liquid leakage detection sheet for detecting liquid leakage from a liquid cooling plate of the liquid cooling device is not explicitly disclosed by Hu. However, Hu does disclose with respect to Figure 6 that the leakage detection portion can take on various forms. Therefore, it would have been obvious to one skilled in the art at the time the invention was filed to make the liquid leakage detection portion in the shape of a sheet in order to allow for a flat designed leakage detection that would easily fit onto the cooling plate. With respect to claim 6, the liquid leakage detection sensor according to claim 2, wherein the first liquid leakage detection portion comprises a first detection body, a first extension portion, and a connector extension portion; the first extension portion is located at a lateral end of the first detection body, the connector extension portion is located at the lateral end of the first detection body, and the connection terminal is located at the connector extension portion and is away from the lateral end of the first detection body; and the second liquid leakage detection portion comprises a second detection body and a second extension portion, the second extension portion is located at the lateral end of the first detection body, and the second extension portion and the first extension portion are integrally formed is not explicitly disclosed by Hu. However, Hu does disclose with respect to Figure 6 that the leakage detection portion can take on various forms. Therefore, it would have been obvious to one skilled in the art at the time the invention was filed to make the liquid leakage detection portion in the configuration as claimed in order to allow for a sensor detection design that more accurately measures an entire area of the cooling device by providing as much coverage and flexibility in sensor placement as possible. With respect to claim 7, the liquid leakage detection sensor according to claim 6, wherein the first detection body and the second detection body each comprises a first liquid leakage detection wire and a second liquid leakage detection wire that are spaced apart from each other; and a lateral portion of the first liquid leakage detection wire is provided with a plurality of first detection sheets extending towards the second liquid leakage detection wire, and a lateral portion of the second liquid leakage detection wire is provided with a plurality of second detection sheets extending towards the first liquid leakage detection wire is not explicitly disclosed by Hu. However, Hu does disclose with respect to Figure 6 that the leakage detection portion can take on various forms. Therefore, it would have been obvious to one skilled in the art at the time the invention was filed to make the liquid leakage detection portion in the configuration as claimed in order to allow for a sensor detection design that more accurately measures an entire area of the cooling device by providing as much coverage and flexibility in sensor placement as possible. With respect to claim 8, the liquid leakage detection sensor according to claim 7, wherein the plurality of first detection sheets and the plurality of second detection sheets are distributed alternatively and are spaced apart from each other in sequence is not explicitly disclosed by Hu. However, Hu does disclose with respect to Figure 6 that the leakage detection portion can take on various forms. Therefore, it would have been obvious to one skilled in the art at the time the invention was filed to make the liquid leakage detection portion in the configuration as claimed in order to allow for a sensor detection design that more accurately measures an entire area of the cooling device by providing as much coverage and flexibility in sensor placement as possible. With respect to claim 9, the liquid leakage detection sensor according to claim 4, wherein the liquid leakage detection sheet is covered on a plane to be detected at the second liquid leakage detection position is not explicitly disclosed by Hu. However, Hu does disclose with respect to Figure 6 that the leakage detection portion can take on various forms. Therefore, it would have been obvious to one skilled in the art at the time the invention was filed to make the liquid leakage detection portion in the configuration as claimed in order to allow for a sensor detection design that more accurately measures an entire area of the cooling device by providing as much coverage and flexibility in sensor placement as possible. With respect to claim 12, a liquid leakage detection device, comprising the liquid leakage detection sensor according to claim 3 (see at least Figures 1, 2, and 6). With respect to claim 13, a liquid leakage detection device, comprising the liquid leakage detection sensor according to claim 4 (see at least Figures 1, 2, and 6). With respect to claim 14, a liquid leakage detection device, comprising the liquid leakage detection sensor according to claim 5 (see at least Figures 1, 2, and 6). With respect to claim 15, a liquid leakage detection device, comprising the liquid leakage detection sensor according to claim 6 (see at least Figures 1, 2, and 6). With respect to claim 16, a liquid leakage detection device, comprising the liquid leakage detection sensor according to claim 7 (see at least Figures 1, 2, and 6). With respect to claim 17, a liquid leakage detection device, comprising the liquid leakage detection sensor according to claim 3 (see at least Figures 1, 2, and 6). With respect to claim 18, a liquid leakage detection device, comprising the liquid leakage detection sensor according to claim 3 (see at least Figures 1, 2, and 6). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to RODNEY T FRANK whose telephone number is (571)272-2193. The examiner can normally be reached M-F 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, Peter Macchiarolo can be reached at (571) 272-2375. 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. /RODNEY T FRANK/Examiner, Art Unit 2855 July 9, 2026
Read full office action

Prosecution Timeline

Aug 15, 2024
Application Filed
Jul 15, 2026
Non-Final Rejection mailed — §102, §103 (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
73%
Grant Probability
76%
With Interview (+3.5%)
3y 1m (~1y 1m remaining)
Median Time to Grant
Low
PTA Risk
Based on 923 resolved cases by this examiner. Grant probability derived from career allowance rate.

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