Prosecution Insights
Last updated: July 17, 2026
Application No. 18/871,165

STRUCTURE

Non-Final OA §102§103
Filed
Dec 03, 2024
Priority
Jun 08, 2022 — JP 2022-092816 +1 more
Examiner
TANENBAUM, TZVI SAMUEL
Art Unit
Tech Center
Assignee
Nature Architects Inc.
OA Round
1 (Non-Final)
68%
Grant Probability
Favorable
1-2
OA Rounds
1y 1m
Est. Remaining
78%
With Interview

Examiner Intelligence

Grants 68% — above average
68%
Career Allowance Rate
529 granted / 779 resolved
+7.9% vs TC avg
Moderate +10% lift
Without
With
+9.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
24 currently pending
Career history
801
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
68.5%
+28.5% vs TC avg
§102
5.6%
-34.4% vs TC avg
§112
24.3%
-15.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 779 resolved cases

Office Action

§102 §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 . Specification The title of the invention is not descriptive. A new title is required that is clearly indicative of the invention to which the claims are directed. 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)(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) 1-3, 6-7 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Slaughter (US 20080149299). Regarding claim 1, Referring to Fig. 11, 13, Slaughter teaches a structure for heat exchange (see abstract), the structure comprising: a partition wall structure (see par. 29) that forms a first flow channel space (not labeled, see par. 29) and a second flow channel space (not labeled, see par. 29) with the first flow channel space and the second flow channel space separated from each other (see par. 29), the first flow channel space being a space in which a plurality of first flow channels extending spirally in a certain direction are formed in communication with each other (e.g. as the channels are formed of helicoid surfaces, see par. 6, 29), the second flow channel space being a space in which a plurality of second flow channels extending spirally in the certain direction are formed in communication with each other (see par. 29), wherein two adjacent first flow channels among the plurality of first flow channels are formed such that, when viewed along the direction in which the plurality of first flow channels extend, one first flow channel of the two adjacent first flow channels turns in a first direction, and the other first flow channel of the two adjacent first flow channels turns in a second direction opposite to the first direction (see pars. 29, 39), and two adjacent second flow channels among the plurality of second flow channels are formed such that, when viewed along the direction in which the plurality of second flow channels extend, one second flow channel of the two adjacent second flow channels turns in the first direction, and the other second flow channel of the two adjacent second flow channels turns in the second direction opposite to the first direction (see pars. 29, 39). Regarding claim 2, Slaughter teaches wherein the partition wall structure has a first flow channel element 40 and a second flow channel element 42 alternately disposed, the first flow channel element being formed based on a first helicoid curved surface that forms the first flow channel (see pars. 6, 29) and the second flow channel that turn in the first direction, the second flow channel element being formed based on a second helicoid curved surface that forms the first flow channel and the second flow channel that turn in the second direction (see pars. 6, 29). Regarding claim 3, Slaughter teaches wherein the partition wall structure is formed such that a ratio of a volume occupied by the first flow channel to a volume occupied by the second flow channel in a unit volume is uniform (see Fig. 13). Regarding claim 6, Slaughter teaches wherein the partition wall structure is formed such that the plurality of first flow channels and the plurality of second flow channels extend in a linear shape or in a curved shape (see pars. 6, 29). Regarding claim 7, Slaughter teaches a heat exchanger, comprising the structure according to claim 1. 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) 4-5 is/are rejected under 35 U.S.C. 103 as being unpatentable over Slaughter. Regarding claim 4, Slaughter does not teach wherein the partition wall structure is formed such that a ratio of a volume occupied by the first flow channel to a volume occupied by the second flow channel in a unit volume varies. However, it has been held that claims directed to (the size of) a specific element were held unpatentable over prior art elements because limitations relating to the size of the elements were not sufficient to patentably distinguish over the prior art. Similarly, it has been held that, where the only difference between the prior art and the claims was a recitation of relative dimensions of the claimed device and a device having the claimed relative dimensions would not perform differently than the prior art device, the claimed device was not patentably distinct from the prior art device (see MPEP 2144.04 IV A). Regarding claim 5, The subject matter of claim 5 is directed towards essentially the same subject matter as claim 4 and has been addressed in the rejection of claim 4. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Manzo teaches a heat exchanger with a helicoid curved surface. Any inquiry concerning this communication or earlier communications from the examiner should be directed to STEVE S TANENBAUM whose telephone number is (313)446-6522. The examiner can normally be reached M-F 11 AM - 7 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, Frantz Jules can be reached at (571) 272-6681. 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. /Steve S TANENBAUM/Examiner, Art Unit 3763
Read full office action

Prosecution Timeline

Dec 03, 2024
Application Filed
Jun 15, 2026
Non-Final Rejection mailed — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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PACKAGED TERMINAL AIR CONDITIONER (PTAC) WITH AN INTEGRATED ENERGY RECOVERY VENTILATOR (ERV) OR HEAT RECOVERY VENTILATOR (HRV)
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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
68%
Grant Probability
78%
With Interview (+9.8%)
2y 8m (~1y 1m remaining)
Median Time to Grant
Low
PTA Risk
Based on 779 resolved cases by this examiner. Grant probability derived from career allowance rate.

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