Prosecution Insights
Last updated: October 24, 2026
Application No. 19/110,033

TURBO REFRIGERATOR, REFRIGERATOR CONTROL DEVICE, TURBO REFRIGERATOR CONTROL METHOD, AND PROGRAM

Non-Final OA §103§112
Filed
Mar 07, 2025
Priority
Sep 12, 2022 — JP 2022-144367 +1 more
Examiner
MARTIN, ELIZABETH J
Art Unit
Tech Center
Assignee
Mitsubishi Heavy Industries Ltd.
OA Round
1 (Non-Final)
79%
Grant Probability
Favorable
1-2
OA Rounds
10m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allowance Rate
759 granted / 963 resolved
+18.8% vs TC avg
Strong +21% interview lift
Without
With
+20.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
38 currently pending
Career history
997
Total Applications
across all art units

Statute-Specific Performance

§101
1.0%
-39.0% vs TC avg
§103
50.3%
+10.3% vs TC avg
§102
19.4%
-20.6% vs TC avg
§112
27.9%
-12.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 963 resolved cases

Office Action

§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 . Information Disclosure Statement The information disclosure statement (IDS) submitted on 6/6/2025 was filed after the mailing date of the application on 3/7/2025. The submission is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. 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: “an acquisition unit”, “an opening degree determination unit”, and “an opening degree control unit” in claims 1 and 6. 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 the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claims 1-6 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Regarding claims 1 and 6, the claims recite : “an acquisition unit”, “an opening degree determination unit”, and “an opening degree control unit” in claims 1 and 6. The specification fails discloses the computer and the algorithm(s) that achieve the claimed function in sufficient detail that one of ordinary skill in the art can reasonably conclude that the inventor possessed the claim subject matter at the time of filing. It is not enough that one skilled in the art could theoretically write a program to achieve the claimed function, rather the specification itself must explain how the claimed function is achieved. The specification fails to teach those skilled in the art how to make and use the full scope of the claimed invention without undue experimentation. 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 1-6 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. Claim 5 recites “a minimum opening degree set value and a maximum opening degree set value of the opening degree of the vane set in advance”. The terms “minimum and maximum” in claim 5 are relative terms which renders the claim indefinite. The terms “minimum and maximum” is not defined by the claim, the specification does not provide a standard for ascertaining the requisite degree, and one of ordinary skill in the art would not be reasonably apprised of the scope of the invention. Thus, as used to qualify the opening degree of the vane set, these terms renders the same indeterminate and the claim (and all claims depending therefrom) indefinite with regard to the scope of protection sought thereby. Claim limitation : “an acquisition unit”, “an opening degree determination unit”, and “an opening degree control unit” in claims 1 and 6 invokes 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. However, the written description fails to disclose the corresponding structure, material, or acts for performing the entire claimed function and to clearly link the structure, material, or acts to the function. The specification fails to teach those skilled in the art how to make and use the full scope of the claimed invention. Therefore, the claim is indefinite and is rejected under 35 U.S.C. 112(b) or pre-AIA 35 U.S.C. 112, second paragraph. Applicant may: (a) Amend the claim so that the claim limitation will no longer be interpreted as a limitation under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph; (b) Amend the written description of the specification such that it expressly recites what structure, material, or acts perform the entire claimed function, without introducing any new matter (35 U.S.C. 132(a)); or (c) Amend the written description of the specification such that it clearly links the structure, material, or acts disclosed therein to the function recited in the claim, without introducing any new matter (35 U.S.C. 132(a)). If applicant is of the opinion that the written description of the specification already implicitly or inherently discloses the corresponding structure, material, or acts and clearly links them to the function so that one of ordinary skill in the art would recognize what structure, material, or acts perform the claimed function, applicant should clarify the record by either: (a) Amending the written description of the specification such that it expressly recites the corresponding structure, material, or acts for performing the claimed function and clearly links or associates the structure, material, or acts to the claimed function, without introducing any new matter (35 U.S.C. 132(a)); or (b) Stating on the record what the corresponding structure, material, or acts, which are implicitly or inherently set forth in the written description of the specification, perform the claimed function. For more information, see 37 CFR 1.75(d) and MPEP §§ 608.01(o) and 2181. Claims 2-4 are rejected based on dependency from a rejected claim. Claim Rejections - 35 USC § 103 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 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 nonobviousness. 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) 1, 6-8 is/are rejected under 35 U.S.C. 103 as being unpatentable over Arai et al (JP 2015161499) . Regarding claims 1 and 6, in view of indefiniteness, Arai teaches a centrifugal chiller (fig. 1) comprising: a turbo compressor (TC) that compresses a refrigerant gas (gas, pg. 2, paragraph 4); a vane (IGV) that is capable of adjusting flow rate of the refrigerant gas sucked by the turbo compressor (pg. 2, paragraph 4); a condenser (4) that condenses the refrigerant gas compressed by the turbo compressor by causing the refrigerant gas to release heat through heat exchange; an expansion valve (7) that expands a liquid refrigerant introduced from the condenser; an evaporator (5) that evaporates the liquid refrigerant expanded by the expansion valve by causing the liquid refrigerant to absorb heat through heat exchange; and a chiller control device (20), wherein the chiller control device includes an acquisition unit (compressor head condition, pg. 5, paragraph 4, one of ordinary skill would recognize control device 20 is receiving information about the system for controlling the IGV, abstract) that acquires at least a state amount of the refrigerant gas when starting the centrifugal chiller (pg. 5, paragraph 4), an opening degree determination unit (the IGV is opened to the opening degree corresponding to the compression head condition, pg. 5, paragraph 4, one of ordinary skill would recognize control device 20 is receiving information about the system for controlling the IGV, abstract) that determines an opening degree (the IGV is opened to the opening degree corresponding to the compression head condition, pg. 5, paragraph 4) of the vane based on the acquired state amount, and an opening degree control unit (20 perform control, pg. 4, paragraph 5, one of ordinary skill would recognize control device 20 is receiving information about the system for controlling the IGV, abstract) that controls the opening degree of the vane based on the determined opening degree (pg. 4, paragraph 5). Regarding claim 7, it is noted that although the preamble of claim 7 is directed towards a method, the structure of the combined teachings disclose all the structure being provided in the method steps, thus the method is also anticipated by the combined teachings. If a prior art device, in its normal and usual operation, would necessarily perform the method claimed, then the method claimed will be considered to be anticipated or rendered obvious by the prior art device. When the prior art device is the same as a device described in the specification for carrying out the claimed method, it can be assumed the device will inherently or obviously perform the claimed process. Thus, the method, as claimed, would necessarily result from the normal operation of the apparatus. See MPEP 2112.02. Regarding claim 8, Arai teaches all the limitations of claim 8 including a non-transitory computer-readable recording medium (20 stores the relationship, pg. 4, paragraph 4) that stores a program (pg. 4, paragraph 4) causing a computer (one of ordinary skill in the art would recognize 20 as a computer, pg. 4, paragraphs 4-5, 6). Claim(s) 2-5 is/are rejected under 35 U.S.C. 103 as being unpatentable over Arai et al (JP 2015161499) as applied to claim 1 and in view of Drake (US 20230137972). Regarding claim 2, in view of indefiniteness, Arai teaches the invention as described above but fails to explicitly teach the acquisition unit acquires at least one of a pressure and a temperature of the refrigerant gas sucked by the turbo compressor as the state amount of the refrigerant gas. However, Drake teaches the acquisition unit acquires (S) at least one of a pressure and a temperature (it is well known in the art for sensors to measure pressure and sensors of refrigerant) of the refrigerant gas sucked by the turbo compressor as the state amount of the refrigerant gas (paragraph 0026) to efficiently monitor the chiller system. Therefore, it would have been obvious to a person skilled in the art before the effective filing date to modify the centrifugal chiller of Arai to include the acquisition unit acquires at least one of a pressure and a temperature of the refrigerant gas sucked by the turbo compressor as the state amount of the refrigerant gas in view of the teachings of Drake to efficiently monitor the chiller system. Regarding claim 3, in view of indefiniteness, the combined teachings teach a pressure sensor (Pe of Arai) that detects the pressure of the refrigerant gas on an outlet side of the evaporator (fig. 1), wherein the acquisition unit acquires the pressure of the refrigerant gas detected by the pressure sensor as the state amount of the refrigerant gas (pg. 4, paragraph 5 of Arai). Regarding claim 4, in view of indefiniteness, the combined teachings teach the acquisition unit acquires an operating rotation speed of the turbo compressor during a steady operation of the centrifugal chiller (rotation speed, pg. 2, paragraph 3 of Arai, paragraph 0004 of Drake), and the opening degree determination unit calculates the opening degree of the vane based on a differential pressure between an upstream side and a downstream side of the vane in a suction direction of the refrigerant gas (fig. 2 of Arai). Regarding claim 5, in view of indefiniteness, the combined teachings teach the opening degree determination unit determines the opening degree of the vane such that the opening degree falls between a minimum opening degree set value and a maximum opening degree set value of the opening degree of the vane set in advance (pg. 4, paragraphs 1-3, fig. 2). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ELIZABETH J MARTIN whose telephone number is (571)270-3840. The examiner can normally be reached 8:30-3:00 CT pm M-F. 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. /ELIZABETH J MARTIN/Primary Examiner, Art Unit 3763
Read full office action

Prosecution Timeline

Mar 07, 2025
Application Filed
Oct 09, 2026
Non-Final Rejection mailed — §103, §112 (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
79%
Grant Probability
99%
With Interview (+20.7%)
2y 6m (~10m remaining)
Median Time to Grant
Low
PTA Risk
Based on 963 resolved cases by this examiner. Grant probability derived from career allowance rate.

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