Prosecution Insights
Last updated: May 29, 2026
Application No. 18/267,092

Thermal Managing System for Battery Pack

Non-Final OA §112
Filed
Jun 13, 2023
Priority
May 10, 2023 — nonprovisional of PCTCN2023093152
Examiner
DOVE, TRACY MAE
Art Unit
1725
Tech Center
1700 — Chemical & Materials Engineering
Assignee
T-Global Technology Co. Ltd.
OA Round
1 (Non-Final)
69%
Grant Probability
Favorable
1-2
OA Rounds
8m
Est. Remaining
80%
With Interview

Examiner Intelligence

Grants 69% — above average
69%
Career Allowance Rate
485 granted / 700 resolved
+4.3% vs TC avg
Moderate +10% lift
Without
With
+10.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 8m
Avg Prosecution
42 currently pending
Career history
753
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
57.8%
+17.8% vs TC avg
§102
25.9%
-14.1% vs TC avg
§112
13.7%
-26.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 700 resolved cases

Office Action

§112
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 Interpretation Claim 1 recites “a latent heat” at line 12. Latent heat is defined as the energy absorbed or released by a substance during a phase change without changing the temperature of the substance (such as melting or condensation). Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 1-10 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 1 recites ‘the evaporating surface is thermally connected to a corresponding area of the heat conducting shell”, which is indefinite. It is unclear what encompasses “a corresponding area” and how the evaporating surface thermally connects to the heat conducting shell. Claim 1 recites “wherein when the phase change material is melting, conducting dominates heat transferring rather then circulating”, which is indefinite. It is unclear what Applicant is intending to claim. The claim does not recite how “conducting” and “circulating” structurally relate to the claimed thermal managing system and/or what elements comprise the conducting or circulating limitations. Claim 8 recites “in one way” at lines 6 and 11, which may indicate a direction or a particular first way different from a second way. Examiner suggests “in an outwardly direction” if the limitation is intended to indicate a direction. See also claims 9 and 10 that each recite “in one way”. Claim 10 recites the limitation "the gap" in line 19. There is insufficient antecedent basis for this limitation in the claim. The claim previously recites “a first gap” and “a second gap”. Claim 10 recites the limitation "the third phase change material" in line 29. There is insufficient antecedent basis for this limitation in the claim. Claim 10 recites “wherein when a third phase change occurs, the third phase change material comprises a third latent heat”, which is confusing and unclear as these lines of the claim are referring to the “second phase change material module”. The claim does not require a third phase change material module. Furthermore, it is unclear where the second phase change material module is structurally located in the claimed thermal managing system. Examiner suggests language such as “disposed in the second gap”. Allowable Subject Matter To the extent the claims are understood in view of the 35 USC 112 rejections above, the claims appear to be directed toward allowable subject matter. Examiner notes that any substantial claim amendments made to overcome the indefinite rejections above may result in any indication of allowable subject matter being withdrawn. A search of the prior art was completed to the extent the pending claims were understood by the Examiner. Claims 1-10 would be allowable if rewritten or amended to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action. Claims 1-8 are directed toward a thermal managing system for a battery pack comprising: a battery pack comprising a heat conducting shell; a vapor chamber module, comprising a evaporating surface and a condensing surface, wherein the evaporating surface is thermally connected to a corresponding area of the heat conducting shell, and a two-phase flow heat transfer between the evaporating surface and the condensing surface occurs in a direction one-way outwardly from the evaporating surface to the condensing surface; a phase change material module, comprising a container and a phase change material, wherein the container is thermally connected to the condensing surface and contains the phase change material, wherein when a phase change occurs, the phase change material comprises a latent heat, wherein the phase change material is capable of being heated by the two-phase flow heat transfer, wherein when the phase change material is melting, conducting dominates heat transferring rather than circulating. Claims 9-10 are directed toward a thermal managing system for a battery pack comprising: a battery pack; a first vapor chamber module comprising a first evaporating surface and a first condensing surface, wherein the first evaporating surface is thermally connected to the battery pack, and a first two-phase flow heat transfer between the first evaporating surface and the first condensing surface occurs in one way from the first evaporating surface to the first condensing surface; a second vapor chamber module comprising a second evaporating surface and a second condensing surface, disposed in parallel to the first vapor chamber module to form a gap, wherein a second two-phase flow heat transfer between the second evaporating surface and the second condensing surface occurs in one way from the second evaporating surface to the second condensing surface; a first phase change material module, disposed in the gap, comprising a first container and a first phase change material, wherein the first container is thermally connected to the first condensing surface and the second evaporating surface respectively, and contains the first phase change material, wherein when a first phase change occurs, the first phase change material comprises a first latent heat; a second phase change material module, comprising a second container and a second phase change material, wherein the second container is thermally connected to the second condensing surface, and contains the second phase change material, wherein when a second phase change occurs, the second phase change material comprises a second latent heat; wherein the first phase change material comprises a first melting point, the second phase change material comprises a second melting point, and the first melting point is higher than the second melting point. The prior art, to the extent the claims are understood in view of the 35 USC 112 rejections above, does not appear to teach or suggest the claimed invention. Wang et al. (CN106252787) teaches a method based on phase-change material and air-coupled cooling battery thermal management system, comprising: a single cells (202), phase change composite plate (203), a radiator (204) and a battery box (205); the single battery (202) and the phase change composite plate (203), a radiator (204) form a radiating unit; the single battery (202) left and right symmetrically a composite board (203) and the radiator (204) of the phase; N radiating elements arranged transversely, and is contained in the cavity of the battery box (205), N is a natural number, the phase change composite plate (203) comprises a supporting plate body and a thermally conductive filler (abstract). However, as can be seen by at least Figure 1 of Wang, the phase change composite plate is between the battery 202 and the radiator 204. The presently claimed invention requires the vapor chamber module be between the battery pack and the phase change material module. Any inquiry concerning this communication or earlier communications from the examiner should be directed to TRACY DOVE whose telephone number is (571)272-1285. The examiner can normally be reached M-F 9:00-3:00. 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, Nicole Buie-Hatcher can be reached at 571-270-3879. 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. /TRACY M DOVE/ Primary Examiner, Art Unit 1725
Read full office action

Prosecution Timeline

Jun 13, 2023
Application Filed
Feb 19, 2026
Non-Final Rejection mailed — §112 (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
69%
Grant Probability
80%
With Interview (+10.2%)
3y 8m (~8m remaining)
Median Time to Grant
Low
PTA Risk
Based on 700 resolved cases by this examiner. Grant probability derived from career allowance rate.

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