Prosecution Insights
Last updated: April 19, 2026
Application No. 18/106,212

IMMERSION COOLING DEVICE, HEAT PIPE, AND COLD PLATE

Final Rejection §102
Filed
Feb 06, 2023
Examiner
GODENSCHWAGER, PETER F
Art Unit
1767
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Daikin Industries Ltd.
OA Round
2 (Final)
68%
Grant Probability
Favorable
3-4
OA Rounds
3y 0m
To Grant
86%
With Interview

Examiner Intelligence

Grants 68% — above average
68%
Career Allow Rate
687 granted / 1012 resolved
+2.9% vs TC avg
Strong +18% interview lift
Without
With
+18.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
30 currently pending
Career history
1042
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
44.5%
+4.5% vs TC avg
§102
21.9%
-18.1% vs TC avg
§112
21.4%
-18.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1012 resolved cases

Office Action

§102
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 . 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. 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. Claim(s) 5 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Nishiguchi et al. (English machine translation of JP 2014005419 A). Nishiguchi et al. teaches a heat pipe comprising a sealed pipe (hermetic container) connected to an evaporation section and a condensation section, wherein a working medium (refrigerant) is sealed/enclosed in the heat pipe ([0016]-[0017]). Nishiguchi et al. teaches the working medium is 1,1,2,3,3,3-hexafluoropropyl methyl ether ([0029]-[0030], [0075]-[0076], and [0101]). As Nishiguchi et al. does not require any other fluorine-based insulation refrigerant to be present, Nishiguchi et al. is deemed to read on the transitional phrase “consisting of.” Response to Arguments Applicant's arguments filed February 20, 2026 have been fully considered but they are not persuasive. Applicant argues that Nishiguchi et al. does not teach the heat pipe wherein the fluorine-based insulation refrigerant consists of 1,1,2,3,3,3-hexafluoropropyl methyl ether. However, as set forth above, as Nishiguchi et al. does not require any other fluorine-based insulation refrigerant to be present, Nishiguchi et al. is deemed to read on the transitional phrase “consisting of.” With regards to Applicant’s arguments regarding unexpected results, it is noted that evidence of secondary considerations, such as unexpected results or commercial success, is irrelevant to 35 U.S.C. 102 rejections and thus cannot overcome a rejection so based (MPEP 2131.04). Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). 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. Correspondence Any inquiry concerning this communication or earlier communications from the examiner should be directed to PETER F GODENSCHWAGER whose telephone number is (571)270-3302. The examiner can normally be reached 8:30-5:00, M-F EST. 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, Mark Eashoo can be reached at 571-272-1197. 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. /PETER F GODENSCHWAGER/Primary Examiner, Art Unit 1767 March 16, 2026
Read full office action

Prosecution Timeline

Feb 06, 2023
Application Filed
Nov 13, 2025
Non-Final Rejection — §102
Feb 20, 2026
Response Filed
Mar 16, 2026
Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
68%
Grant Probability
86%
With Interview (+18.1%)
3y 0m
Median Time to Grant
Moderate
PTA Risk
Based on 1012 resolved cases by this examiner. Grant probability derived from career allow rate.

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