Prosecution Insights
Last updated: May 29, 2026
Application No. 18/103,164

USE OF COMPOSITION AS REFRIGERANT IN DEVICE, DEVICE, AND REFRIGERATION CYCLE APPARATUS

Non-Final OA §103
Filed
Jan 30, 2023
Priority
Jul 31, 2020 — JP 2020-131014 +1 more
Examiner
GODENSCHWAGER, PETER F
Art Unit
1767
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Daikin Industries Ltd.
OA Round
2 (Non-Final)
68%
Grant Probability
Favorable
2-3
OA Rounds
0m
Est. Remaining
86%
With Interview

Examiner Intelligence

Grants 68% — above average
68%
Career Allowance Rate
691 granted / 1019 resolved
+2.8% vs TC avg
Strong +18% interview lift
Without
With
+17.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 12m
Avg Prosecution
25 currently pending
Career history
1044
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
62.3%
+22.3% vs TC avg
§102
10.1%
-29.9% vs TC avg
§112
12.9%
-27.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1019 resolved cases

Office Action

§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 . 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 § 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. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claim(s) 4-5 is/are rejected under 35 U.S.C. 103 as being unpatentable over Iidia et al. (US Pub. No. 2014/0216027) in view of Satake et al. (English machine translation of JP 2010267912A). Iidia et al. teaches a heat storage device comprising a refrigerant circuit with a refrigerant pipe cooled by circulating refrigerant in a cooling device (refrigeration cycle apparatus) (Fig. 8 and [0187]). Iidia et al. teaches the device comprising a heat collection part that absorbs heat (heat absorber) comprising an alloy with a eutectic temperature of about 800-1000 °C ([0145-[0146], Tables 5-6, and [0162]). Iidia et al. does not teach with sufficient specificity the claimed range of 1000 °C or greater. However, in the case where the claimed ranges “overlap or lie inside ranges disclosed by the prior art” a prima facie case of obviousness exists (see MPEP 2144.05). Iidia et al. is silent as to the heat capacity of the heat absorber. However, Satake et al. teaches a heat storage device having a heat capacity of 50 J/K or more ([0035]). Iidia et al. and Satake et al. are analogous art because they are concerned with the same field of endeavor, namely heat storage devices. At the time of the invention a person of ordinary skill in the art would have found it obvious to modify the device of Iidia et al. to have the heat capacity of Satake et al. and would have been motivated to do so mitigate the temperature rise thus having the capability of storing additional heat without raising the temperature above a desired temperature. Response to Arguments Applicant's arguments filed December 10, 2025 have been fully considered but they are not persuasive. Applicant’s arguments regarding unexpected results are not persuasive because the data cited by Applicant (Table 1 of the original specification) is not commensurate in scope with the claimed invention (MPEP 716.02(d)). The data cited utilizes one single refrigerant and a single heat absorbing material with one shape (mesh). 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 12, 2026
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Prosecution Timeline

Jan 30, 2023
Application Filed
Sep 15, 2025
Non-Final Rejection mailed — §103
Dec 10, 2025
Response Filed
Mar 16, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12637863
CONSTRUCTION MATERIAL
4y 1m to grant Granted May 26, 2026
Patent 12637602
REFRIGERANT COMPOSITIONS AND USE THEREOF
3y 10m to grant Granted May 26, 2026
Patent 12640293
MnZn-BASED FERRITE AND METHOD FOR PRODUCING SAME
3y 1m to grant Granted May 26, 2026
Patent 12629554
DRY CHEMICAL FIRE SUPPRESSANT FOR A BATTERY PACK
3y 5m to grant Granted May 19, 2026
Patent 12626916
ALUMINUM-COATED PRECURSOR, PREPARATION METHOD THEREFOR, AND USE THEREOF
3y 10m to grant Granted May 12, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

2-3
Expected OA Rounds
68%
Grant Probability
86%
With Interview (+17.9%)
2y 12m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1019 resolved cases by this examiner. Grant probability derived from career allowance rate.

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