Prosecution Insights
Last updated: October 02, 2026
Application No. 18/731,575

HEAT TREATMENT SYSTEM

Non-Final OA §102
Filed
Jun 03, 2024
Priority
Nov 10, 2023 — JP 2023-192487
Examiner
WILSON, GREGORY A
Art Unit
Tech Center
Assignee
Ngk Insulators Ltd.
OA Round
1 (Non-Final)
82%
Grant Probability
Favorable
1-2
OA Rounds
5m
Est. Remaining
89%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allowance Rate
990 granted / 1210 resolved
+21.8% vs TC avg
Moderate +7% lift
Without
With
+6.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
33 currently pending
Career history
1224
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
35.9%
-4.1% vs TC avg
§102
39.3%
-0.7% vs TC avg
§112
22.0%
-18.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1210 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 . Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. 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) 1-5 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Lu (CN 205537102). Lu discloses a heat treatment system including a heat treatment furnace (2) having an entrance, an exit, and an internal space in which a plurality of saggars are conveyed from the entrance to the exit (SEE Figure 1); a return line (1-4) located outside the heat treatment furnace and configured to convey the plurality of saggars from the exit to the entrance and a processor (3-1) located on the return line and configured to process the plurality of saggars on the return line wherein the return line includes a first processing line onto which a saggar is conveyed, a second processing line located in parallel with the first processing line and onto which a saggar is conveyed (SEE Annotated Figure 1), an entrance line (1-3) connected to the first processing line (1-6) and the second processing line and located upstream of the first processing line and the second processing line on the return line and an exit line (1-4) connected to the first processing line and the second processing line and located downstream of the first processing line and the second processing line on the return line and the processor includes a first processing device configured to process the saggar on the first processing line and a second processing device configured to process the saggar on the second processing line (SEE Annotated Figure 1 for clarification). PNG media_image1.png 531 899 media_image1.png Greyscale In re claim 2, Lu discloses that the first processing line is substantially parallel to the second processing line (SEE Annotated Figure 1). In re claim 3, Lu discloses that the first processing line is perpendicular to each of the entrance line (the location which the 1-6 branches from section 1-3) and the exit line (1-4) and the second processing line is substantially perpendicular to each of the entrance line and the exit line (See the perpendicular portion of 1-2 and the exit line 1-4). In re claim 4, Lu discloses that the length of the first processing line is substantially equal to the length of the second processing line (SEE Annotated Figure 1 for clarification). In re claim 5, Lu discloses that each of the first processing device and the second processing device (SEE Annotated Figure 1) is selected from a group consisting of a recovery device configured to reverse the saggar and recover a material in the saggar, a cleaning device configured to clean the saggar, a filling device configured to fill the saggar with a material, and a surface smoothing device configured to smooth a surface of the material in the saggar (SEE Figure 3, Lu discloses an automatic feeding unit having two housings fixed above the linear return line and the rotary return line, respectively, with a dust collection device provided on top of each housing, the side of the housing is provided with a feed inlet through which a conveyor belt passes, inside the housing, along the travel direction of material, a feeding device, a material scraping device and a punching device which are sequentially arranged). Any inquiry concerning this communication or earlier communications from the examiner should be directed to GREGORY A WILSON whose telephone number is (571)272-4882. The examiner can normally be reached M-F; 7:00am-4:30pm. 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, Helena Kosanovic can be reached at 571-272-9059. 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. /GREGORY A WILSON/Primary Examiner, Art Unit 3762 June 11, 2026
Read full office action

Prosecution Timeline

Jun 03, 2024
Application Filed
Jun 16, 2026
Non-Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12747869
STORAGE WATER HEATER EQUIPPED WITH AT LEAST ONE AUXILIARY HEATER AND A CIRCULATOR
2y 10m to grant Granted Sep 29, 2026
Patent 12742596
HEAT TREATMENT SYSTEM
3y 0m to grant Granted Sep 22, 2026
Patent 12736215
INDUCED DRAFTING IN PROCESS HEATERS
2y 9m to grant Granted Sep 15, 2026
Patent 12729056
Steam Heating System For Container
3y 4m to grant Granted Sep 08, 2026
Patent 12729878
HEAT EXCHANGER AND HOT WATER APPARATUS INCLUDING HEAT EXCHANGER
2y 10m 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
82%
Grant Probability
89%
With Interview (+6.9%)
2y 9m (~5m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1210 resolved cases by this examiner. Grant probability derived from career allowance rate.

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