Prosecution Insights
Last updated: October 01, 2026
Application No. 19/049,013

REFRIGERATION APPARATUS

Non-Final OA §102§103§112
Filed
Feb 10, 2025
Priority
Sep 30, 2022 — JP 2022-157408 +1 more
Examiner
BRADFORD, JONATHAN
Art Unit
Tech Center
Assignee
Daikin Industries Ltd.
OA Round
1 (Non-Final)
76%
Grant Probability
Favorable
1-2
OA Rounds
1y 1m
Est. Remaining
97%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allowance Rate
905 granted / 1190 resolved
+16.1% vs TC avg
Strong +21% interview lift
Without
With
+21.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
38 currently pending
Career history
1204
Total Applications
across all art units

Statute-Specific Performance

§101
1.7%
-38.3% vs TC avg
§103
48.8%
+8.8% vs TC avg
§102
19.3%
-20.7% vs TC avg
§112
25.9%
-14.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1190 resolved cases

Office Action

§102 §103 §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 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: (A) the claim limitation uses the term “means” or “step” or a term used as a substitute for “means” that is a generic placeholder (also called a nonce term or a non-structural term having no specific structural meaning) for performing the claimed function; (B) the term “means” or “step” or the generic placeholder is modified by functional language, typically, but not always linked by the transition word “for” (e.g., “means for”) or another linking word or phrase, such as “configured to” or “so that”; and (C) the term “means” or “step” or the generic placeholder is not modified by sufficient structure, material, or acts for performing the claimed function. Use of the word “means” (or “step”) in a claim with functional language creates a rebuttable presumption that the claim limitation is to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites sufficient structure, material, or acts to entirely perform the recited function. Absence of the word “means” (or “step”) in a claim creates a rebuttable presumption that the claim limitation is not to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is not interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites function without reciting sufficient structure, material or acts to entirely perform the recited function. 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. This application includes one or more claim limitations that do not use the word “means,” but are nonetheless being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, because the claim limitation(s) uses a generic placeholder that is coupled with functional language without reciting sufficient structure to perform the recited function and the generic placeholder is not preceded by a structural modifier. Such claim limitation(s) is/are: “a pressure regulating mechanism” and “a control device configured to control”. Because this/these claim limitation(s) is/are being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, it/they is/are being interpreted to cover the corresponding structure described in the specification as performing the claimed function, and equivalents thereof. If applicant does not intend to have this/these limitation(s) interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, applicant may: (1) amend the claim limitation(s) to avoid it/them being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph (e.g., by reciting sufficient structure to perform the claimed function); or (2) present a sufficient showing that the claim limitation(s) recite(s) sufficient structure to perform the claimed function so as to avoid it/them being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. 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 1-20 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. Regarding claim 1, the claim recites control to “avoid frosting” of a second utilization side heat exchanger during an operating condition wherein a first utilization-side heat exchanger is “possibly frosted”. The limitations are indefinite as it is unclear what specifically would constitute an avoidance of frosting, or what would qualify as “possibly” frosted. For examination purposes the claim is presumed to mean that the claimed expansion and pressure regulating mechanisms are controlled such that conditions at the second exchanger prevent frost from forming during an operation wherein it is possible for frost to form at the first exchanger. Regarding claims 2-20, the claims are rejected due to dependence from claim 1. 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. Claims 1-3 and 10-11 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Sugitani (JP 2021-42910, see English translation included with IDS filed 2/10/2025). As to claim 1, Sugitani teaches refrigeration apparatus comprising: a refrigeration circuit including: a compressor 20; a heat source side heat exchanger 21; a first channel 30 with a first expansion mechanism 22 and a first utilization side heat exchanger 23; and a second channel 32 in parallel with the first channel 30 and including a second expansion mechanism 24, a second utilization side heat exchanger 25, and a pressure regulating mechanism 26; and a control device 40 configured to control the second expansion mechanism 24 and the pressure regulating mechanism 26 to prevent frosting of exchanger 25 during conditions wherein exchanger 21 functions as a radiator, exchangers 23 and 25 function as evaporators, and it is possible for frost to form at the first exchanger 23 (paragraph 38; also note that control device 40 controls operation of valves 31, 33, and 35 to control flow to valves 24 and 26 and thus is considered to control the operation of those valves based on the provided flow). As to claim 2, the claim merely recites intended use. The second utilization exchanger 25 cools a vehicle cabin, and thus is capable of adjusting a temperature of a battery. As to claims 3 and 11, the first utilization exchanger 23 cools air in a storage 111. As to claim 10, the first expansion mechanism 22 is a thermal expansion valve (paragraph 33). 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. Claims 4-9 and 12-20 are rejected under 35 U.S.C. 103 as being unpatentable over Sugitani as applied above. As to claims 4-6 and 12-13, Sugitani does not explicitly teach a defrost control as claimed. However, Official Notice is taken that a hot gas defrost with a hot gas bypass channel (the claimed first operation recited in claims 5-6) is a common and typical feature of a refrigerant circuit that would have been obvious to use in conjunction with the circuit of Sugitani for the purpose of providing reliable system operations. As to claim 7, Sugitani teaches a check valve 27, and any further check valves would be a simple matter of design choice to further ensure undesirable backflow of refrigerant does not occur. As to claims 8-9 and 14-20, the modified apparatus performs a defrost control and therefore the opening degrees of the expansion mechanism and pressure regulating mechanisms are necessarily configured to be controlled/reduced during the defrost operation. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to JONATHAN BRADFORD whose telephone number is (571)270-5199. The examiner can normally be reached Monday-Friday 8:00 - 4:00 ET. 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, Jerry-Daryl Fletcher can be reached at (571)270-5054. 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. /JONATHAN BRADFORD/ Primary Examiner, Art Unit 3763
Read full office action

Prosecution Timeline

Feb 10, 2025
Application Filed
Sep 15, 2026
Non-Final Rejection mailed — §102, §103, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12746797
VALVE SET INTEGRATED MODULE, THERMAL MANAGEMENT SYSTEM, AND VEHICLE
3y 0m to grant Granted Sep 29, 2026
Patent 12742580
FEED TANK EQUIPPED WITH PACKING STRUCTURE OF FLOAT SENSOR AND ICE MAKER INCLUDING THE SAME
2y 2m to grant Granted Sep 22, 2026
Patent 12728695
HEAT EXCHANGER
2y 9m to grant Granted Sep 08, 2026
Patent 12729872
AIR-CONDITIONING CONTROL SYSTEM
2y 6m to grant Granted Sep 08, 2026
Patent 12729895
REFRIGERATION SYSTEM WITH HEAT RECOVERY
2y 2m to grant Granted Sep 08, 2026
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
76%
Grant Probability
97%
With Interview (+21.3%)
2y 8m (~1y 1m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1190 resolved cases by this examiner. Grant probability derived from career allowance rate.

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