Prosecution Insights
Last updated: July 17, 2026
Application No. 18/744,546

DOUBLE-SIDED COOLING LIQUID COOLING HEAD

Final Rejection §102§103
Filed
Jun 14, 2024
Priority
Apr 26, 2024 — CN 2024105220887
Examiner
BHATTACHAN, BIGYAN NMN
Art Unit
3763
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Apaltek Co. Ltd.
OA Round
2 (Final)
Grant Probability
Favorable
3-4
OA Rounds

Examiner Intelligence

Grants only 0% of cases
0%
Career Allowance Rate
0 granted / 0 resolved
-70.0% vs TC avg
Minimal +0% lift
Without
With
+0.0%
Interview Lift
resolved cases with interview
Typical timeline
Avg Prosecution
15 currently pending
Career history
11
Total Applications
across all art units

Statute-Specific Performance

§103
95.4%
+55.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 0 resolved cases

Office Action

§102 §103
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 . Information Disclosure Statement The information disclosure statement (IDS) submitted on 14 June, 2024 is being considered by the examiner. Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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 and 2-8 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by De Sousa (US 2022/0015271 A1- published 13 January, 2022). As to claim 1, DE SOUSA discloses a double-sided cooling liquid cooling head (20), comprising: A frame (See Annotated Figure below), comprising a pair of side strips and a pair of connecting strips (See Annotated Figure below), the side strips parallel and opposite to each other (See Annotated Figure below), the connecting strips respectively connected to two ends of each of the side strips (See Annotated Figure below), the side strips and the connecting strips jointly forming an accommodating space (See Annotated Figure below which shows the side strips and connecting strips connecting to form a frame forming an accommodating space 13), one of the connecting strips comprising an inlet (11), the other connecting strip comprising an outlet (12), a baffle (21, defined as a device used to restrain the flow of a fluid or gas in a particular direction), fixed in the frame to separate the accommodating space (13) to a first space (30) and a second space (32), wherein the inlet communicated to the first space and the second space (See Annotated Figure below), the outlet communicated to the first space and the second space (See Annotated Figure below); a first cover (22), comprising a first fin group (23), the first cover corresponding to the first space and fixed on a side of a frame (See Annotated Figure below), the first fin group located in the first space and abutted (paragraph 37, pg.10, lines 17-19) against the baffle; and a second cover (33), comprising a second fin group (23), the second cover corresponding to the second space and fixed on another side of the frame (See Annotated Figure below), the second fin group located in the second space and abutted (paragraph 37, pg.10, lines 17-19) against the baffle. As to claim 2, DE SOUSA discloses wherein the baffle is connected to the side strips and the connecting strips (See Annotated Figure below, paragraph 37). As to claim 3, DE SOUSA discloses wherein a location of the baffle is corresponding to a center of the inlet (See Annotated Figure below, paragraph 35). As to claim 4, DE SOUSA discloses wherein a location of the baffle is corresponding to a center of the outlet (See Annotated Figure below, paragraph 35). As to claim 5, DE SOUSA discloses wherein the first fin group (22 and 23) comprises a plurality of first heat dissipation channels (23), the second fin group (33 and 23) comprises a plurality of second heat dissipation channels (23), two ends of each of the first heat dissipation channels respectively faces to each of the connecting strips (See Annotated Figure below), two ends of each of the second heat dissipation channels respectively faces to each of the connecting strips (See Annotated Figure below which shows that the two ends of each of the heat dissipation channels faces to each of the connecting strips). As to claim 6, DE SOUSA discloses wherein the baffle comprises a liquid-entry notch (45) and a liquid-exit notch (46), the liquid-entry notch is communicated to the inlet (11), the first space (30), and the second space (33), the liquid-exit notch is communicated to the outlet (12), the first space, and the second space (See Annotated Figure below which shows that the baffle comprises a liquid-entry notch that is communicated to the inlet, the first space, the second space and the liquid-exit notch is communicated to the outlet). As to claim 7, DE SOUSA discloses wherein the first cover comprises a first flat (22) attached to the frame, the first fin group is convex on the first flat (See Annotated Figure below which shows that the first cover comprises a first flat attached to the frame and the first fin group is convex on the first flat). As to claim 8, DE SOUSA discloses wherein the second cover comprises a second flat (33) attached to the frame, the second fin group is convex on the second flat (33) (See Annotated Figure below which shows that the second cover comprises a second flat attached to the frame and the second fin group is convex on the second flat). [AltContent: textbox (First Space)] [AltContent: arrow][AltContent: textbox (Connecting Strips of a frame comprising Inlet and Outlet)][AltContent: textbox (Side Strips of a frame Parallel and Opposite to each other)][AltContent: arrow][AltContent: arrow][AltContent: textbox (Second Fin Group )][AltContent: textbox (Second Flat)][AltContent: arrow][AltContent: arrow][AltContent: arrow][AltContent: textbox (Second Cover )][AltContent: textbox (First Fin Group )][AltContent: textbox (First Cover )][AltContent: arrow][AltContent: textbox (First Flat )][AltContent: arrow][AltContent: arrow][AltContent: textbox (Inlet)][AltContent: textbox (Outlet)][AltContent: arrow][AltContent: arrow][AltContent: textbox (Baffle with liquid Entry Notch and Liquid Exit Notch)][AltContent: arrow][AltContent: arrow][AltContent: arrow][AltContent: arrow] PNG media_image1.png 463 582 media_image1.png Greyscale 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or non-obviousness. Claim(s) 9-10 is/are rejected under 35 U.S.C. 103 as being unpatentable over De Sousa (US 2022/0015271 A1- published 13 January, 2022), in view of Zhou (US 9980415 B2- published 22 May, 2018). Concerning claim 9, DE SOUSA discloses all of the elements (Claims 1-8) of the current invention as stated above. De SOUSA does not disclose the first cover comprising a first-heat conduction block, wherein, the first-head conduction block is convex on the first cover along a direction away from the first fin group. ZHOU teaches the first cover comprising a first heat-conduction plate (See Annotated Figure below), wherein, the first head-conduction plate is the first cover along a direction away from the first fin group (col.11, pg.27, lines 60-66). [AltContent: arrow][AltContent: textbox (Heat-Conduction Plates)][AltContent: textbox (Heat Generating Devices)][AltContent: arrow][AltContent: arrow][AltContent: arrow][AltContent: arrow][AltContent: arrow][AltContent: arrow][AltContent: arrow] PNG media_image2.png 576 727 media_image2.png Greyscale PNG media_image3.png 440 880 media_image3.png Greyscale While ZHOU, as stated above, does not provide the convex shape of the first heat-conduction block on the first cover along a direction away from the first fin group, one having ordinary skill within the art would have found a convex shape of the first heat-conduction block entirely obvious, as it has been held the shape of an object is a matter of choice which one having ordinary skill in the art would have found obvious absent persuasive evidence that the particular configuration of the claimed shape is significant. See MPEP §2144.04 – IV (b). As described, by looking at the specification of the present invention, it does not mention why the first heat-conduction block is novel or has criticality to claim patentability, the difference between a heat-conduction plate and heat conduction block is limited only by the shape of its geometry, as the function of heat-conduction block or a plate is to absorb heat from a heat source. Therefore, it would have been obvious to one having ordinary skill within the art, prior to the date the invention was effectively filed, to modify DE SOUSA with the teachings of ZHOU to incorporate first heat-conduction block so as to dissipate heat from two heat sources at the same time. Concerning claim 10, DE SOUSA discloses all of the elements (Claims 1-8) of the current invention as stated above De SOUSA does not disclose the second cover comprising a second heat-conduction block, wherein, the second head-conduction block is convex on the second cover along a direction away from the second fin group. ZHOU teaches the second cover comprising a second heat-conduction plate, wherein, the second head-conduction plate is the second cover along a direction away from the second fin group. While ZHOU, as stated above, does not provide the convex shape of the second heat-conduction block on the second cover along a direction away from the second fin group, one having ordinary skill within the art would have found a convex shape of the second heat-conduction block entirely obvious, as it has been held the shape of an object is a matter of choice which one having ordinary skill in the art would have found obvious absent persuasive evidence that the particular configuration of the claimed shape is significant. See MPEP §2144.04 – IV (b). As described, by looking at the specification of the present invention, it does not mention why the second heat-conduction block is novel or has criticality to claim patentability, the difference between a heat-conduction plate and heat conduction block is limited only by the shape of its geometry, as the function of heat-conduction block or a plate is to absorb heat from a heat source. Therefore, it would have been obvious to one having ordinary skill within the art, prior to the date the invention was effectively filed, to modify DE SOUSA with the teachings of ZHOU to incorporate second heat-conduction block so as to dissipate heat from two heat sources at the same time. Response to Arguments Applicant's arguments filed 23 March, 2026 have been fully considered but they are not persuasive. Applicant argues on page 5 that De Sousa does not disclose one of the connecting strips comprising an inlet penetrating thereof, the other connecting strip comprising an outlet penetrating thereof. In response, it can be seen when comparing (Annotated figure De Sousa) to figure 1 of XIAO, the inlet necessarily penetrates the connecting strip that allows the inlet to communicate with the chamber, and an outlet necessarily penetrates the connecting strip that allows the outlet to communicate with the chamber. Applicant also states in the paragraph in page 5 that a baffle, fixed in the frame to separate the accommodating space to a first space and a second space, opposite sides of the baffle fully connected to the side strips, However, it can be seen in (Annotated figure De Sousa), that the opposite sides of the baffle are fully connected to the side strips. Examiner’s interpretation is based on BRI in light of the specification, in view of the baffle (13) of the present invention including gaps between the connecting strips (11/12) and the baffle (shown clearly in figure 1,4 and 5). The instant application does not appear to support a “full connection” that would require there to be absolutely no gaps between the connecting strip and the baffle. For the reasons explained in the examiner’s response to arguments, the examiner asserts the position of rejection for claim 1. Furthermore, being that claims 2-9 depend on claim 1, the examiner asserts the position of rejection for claims 2- 10 as well. Conclusion THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to BIGYAN BHATTACHAN whose telephone number is (571)272-8767. The examiner can normally be reached Monday - Friday 7:30 AM - 5 PM. 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, Len Tran can be reached at (571) 272-1184. 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. /BIGYAN BHATTACHAN/ Examiner, Art Unit 3763 /LEN TRAN/Supervisory Patent Examiner, Art Unit 3763
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Prosecution Timeline

Jun 14, 2024
Application Filed
Dec 31, 2025
Non-Final Rejection mailed — §102, §103
Mar 23, 2026
Response Filed
Apr 28, 2026
Final Rejection mailed — §102, §103
Jun 18, 2026
Interview Requested
Jul 06, 2026
Applicant Interview (Telephonic)
Jul 06, 2026
Examiner Interview Summary

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Prosecution Projections

3-4
Expected OA Rounds
Grant Probability
Moderate
PTA Risk
Based on 0 resolved cases by this examiner. Grant probability derived from career allowance rate.

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