Prosecution Insights
Last updated: May 29, 2026
Application No. 18/280,453

POWDER ADDITIVE MANUFACTURING APPARATUS AND MOLDING METHOD

Non-Final OA §102
Filed
Sep 05, 2023
Priority
Apr 22, 2021 — JP 2021-072291 +1 more
Examiner
MORALES, RICARDO D
Art Unit
1738
Tech Center
1700 — Chemical & Materials Engineering
Assignee
The Japan Steel Works, Ltd.
OA Round
1 (Non-Final)
81%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
98%
With Interview

Examiner Intelligence

Grants 81% — above average
81%
Career Allowance Rate
358 granted / 440 resolved
+16.4% vs TC avg
Strong +17% interview lift
Without
With
+16.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
24 currently pending
Career history
473
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
88.0%
+48.0% vs TC avg
§102
4.9%
-35.1% vs TC avg
§112
5.1%
-34.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 440 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 . 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. Claim(s) 1-6 and 17-20 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Uckelmann et al. (US20130108726A1). Regarding Claims 1 and 6, Ucklemann teaches a powder additive manufacturing apparatus comprising: a plurality of molding stages (substrate plate stacks 112a-c, [0196] each including a main surface over which powder can be placed, the powder being an object to be processed; (Fig 2) a stage conveyance mechanism (conveying belt 120) configured to convey the plurality of molding stages in a process proceeding direction 131 in a processing area including a plurality of processing sections in which the plurality of molding stages is arranged along the process proceeding direction; (See Figure 2) and a plurality of elevation control mechanisms configured to control heights of the plurality of molding stages, respectively, in the processing area (See Figure 2); and the stages are connected in such a way that the platform can be changed in a vertical direction PNG media_image1.png 665 678 media_image1.png Greyscale Regarding Claims 2-3 and 5, the conveyance mechanism comprises a conveyance part formed in a loop and configured to circulate and convey the molding stages (interlocked with the belt) in the loop where a drive unit is considered to be present configured to drive the conveyance part and the part circulates along a vertical plane (See Figure 2) Regarding Claim 4, in Fig 11, the conveyance part is taught to be higher upstream and lower downstream. Regarding Claim 17-18, the plate stacks have several coating devices (plurality of recoaters) configured to spread powder across the molding stages[0235] where the recoaters are parallel to each other (See 630a-c of Figure 7) where the recoaters move in a reciprocal (up and down) to different height layers in a direction perpendicular to the direction of process processing [0235] Regarding Claims 19-20, the method steps are taught by the prior art of: Conveying the plate stacks, lowering each molding stage, spreading and coating powder, applying laser to cure each laser and repeating a number of times until the objects are built [0216-0220] (see previous rejections for additional limitations) Allowable Subject Matter Claims 7-16 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. The following is a statement of reasons for the indication of allowable subject matter: The closest prior art is Ucklemann et al. as used above, however the prior art does not teach or suggest a joint part configured to fold as required by claim 7; or the horizontal guide limitations of claim 8; or the side plate and partition plate limitations of claim 12. Any inquiry concerning this communication or earlier communications from the examiner should be directed to RICARDO D MORALES whose telephone number is (571)272-6691. The examiner can normally be reached Monday-Thursday 9 am- 4 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, Sally Merkling can be reached at 5712726297. 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. /RICARDO D MORALES/Primary Examiner, Art Unit 1738
Read full office action

Prosecution Timeline

Sep 05, 2023
Application Filed
Mar 06, 2026
Non-Final Rejection mailed — §102 (current)

Precedent Cases

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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
81%
Grant Probability
98%
With Interview (+16.7%)
2y 8m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 440 resolved cases by this examiner. Grant probability derived from career allowance rate.

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