Prosecution Insights
Last updated: October 04, 2026
Application No. 18/814,071

APPARATUS AND METHODS FOR COOLING A CPU USING A LIQUID BATH

Non-Final OA §251
Filed
Aug 23, 2024
Priority
Sep 14, 2012 — provisional 61/701,409 +4 more
Examiner
HOTALING, JOHN M
Art Unit
3992
Tech Center
3900
Assignee
Systemex-Energies International Inc.
OA Round
1 (Non-Final)
67%
Grant Probability
Favorable
1-2
OA Rounds
1y 3m
Est. Remaining
76%
With Interview

Examiner Intelligence

Grants 67% — above average
67%
Career Allowance Rate
57 granted / 85 resolved
+7.1% vs TC avg
Moderate +9% lift
Without
With
+8.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
7 currently pending
Career history
88
Total Applications
across all art units

Statute-Specific Performance

§101
6.9%
-33.1% vs TC avg
§103
25.7%
-14.3% vs TC avg
§102
4.2%
-35.8% vs TC avg
§112
30.1%
-9.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 85 resolved cases

Office Action

§251
NON-FINAL OFFICE ACTION This Office Action is a Non-Fianl office action of Reissue continuation of U.S. Application No. 17/541,072 now abandon which is a reissue of 16/414,610 now abandon which is also a reissue of 14/428,269 now U.S. Patent No. 9,655,279 issued on May 16, 2017 to Pelletier et al. (the ‘279 patent). The status of the claims amended on 5/21/2021 is as follows; Claims 20-33 are new and pending. Claims 1-19 are cancelled. Claims 20-33 are rejected. Reissue Oath/ Declaration 35 U.S.C. §251 rejection The reissue oath/declaration filed with this application is defective because it fails to identify at least one claim with respect to the error which is relied upon to support the reissue application. See 37 CFR 1.175 and MPEP § 1414. The Broadening reissue application is directed to an overlooked aspect namely the reissue application is directed to systems with a cooling system and a CPU surface with specific features. Claims 20-33 are rejected as being based upon a defective reissue Declaration under 35 U.S.C. 251. See 37 CFR 1.175. The nature of the defect is set forth above. Receipt of an appropriate supplemental oath/declaration will overcome this rejection. An example of acceptable language to be used in the supplemental oath/declaration is as follows: “The reissue application is a broadening reissue application and is directed to an overlooked aspect. For example, claim 1 of the issued patent are directed to systems with a specific coolant. In contrast, the independent claim 20 pending in this reissue application is directed to systems with a cooling system and a CPU surface with specific features..” See MPEP § 1414.01. Claim Interpretation The following is a quotation of 35 U.S.C. 112(f): (f) Element in Claim for a Combination. – An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. The following is a quotation of pre-AIA 35 U.S.C. 112, sixth paragraph: An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. The claims in this application are given their broadest reasonable interpretation using the plain meaning of the claim language in light of the specification as it would be understood by one of ordinary skill in the art. The broadest reasonable interpretation of a claim element (also commonly referred to as a claim limitation) is limited by the description in the specification when 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is invoked. As explained in MPEP § 2181, subsection I, claim limitations that meet the following three-prong test will be interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph: Claim 20 “the porous network configured to facilitate bubble formation and bubble release when the porous network is immersed in liquid coolant.” Functional Phrase #1 FP#1 Claim limitations in this application that use the word “means” (or “step”) are being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. Conversely, claim limitations in this application that do not use the word “means” (or “step”) are not being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. In this case the “the porous network” is the nonce term that acts as “a means for”. The corresponding structure required for performing the claimed function is described as follows: in the 279’ patent column 9 lines 10-31 “the porous network” is configured to facilitate or “it is possible to provide the CPU surface with a treatment or configuration facilitating bubble formation and bubble release. An example of such surface configuration is to create a porous layer that will increase the surface area of the CPU/coolant interface. The porosity and the thickness of the porous layer may vary. For instance, the pores are open pores to allow bubbles to escape. In addition, it is generally preferred to dimension the pores such that the average pore size is larger than the average bubble size. In this fashion, bubbles are less likely to become trapped in the porous network. Bubble formation may induce an isolation layer due to the fact that the heat transfer from the surface of the electronic module 18 is less through gas than through liquid. The bubble starts small and increases in size until the point where the force of differential density is larger than the force of adhesion of the bubble surface to the CPU surface. Hence the bubble should be carried away as fast as possible once created. Another feature of the porous layer is to increase the heat transfer coefficient, thereby increasing the heat flux at the CPU/coolant interface.” Any inquiry concerning this communication or earlier communications from the examiner should be directed to JOHN M HOTALING II whose telephone number is (571)272-4437. The examiner can normally be reached 730-4 Monday - Friday. 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, Andrew J. Fischer can be reached at 571 272 6779. 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. /JOHN M HOTALING II/Reexamination Specialist, Art Unit 3992 Conferees: /Cameron Saadat/Patent Reexam Specialist, Art Unit 3992 /ANDREW J. FISCHER/Supervisory Patent Examiner, Art Unit 3992
Read full office action

Prosecution Timeline

Aug 23, 2024
Application Filed
Aug 23, 2024
Response after Non-Final Action
Aug 19, 2026
Non-Final Rejection mailed — §251 (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
67%
Grant Probability
76%
With Interview (+8.8%)
3y 4m (~1y 3m remaining)
Median Time to Grant
Low
PTA Risk
Based on 85 resolved cases by this examiner. Grant probability derived from career allowance rate.

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