Prosecution Insights
Last updated: October 02, 2026
Application No. 18/038,846

METHOD FOR GENERATING AUXILIARY SUPPORT FOR 3D PRINTING OUTPUT STABILITY

Final Rejection §112
Filed
May 25, 2023
Priority
Nov 25, 2020 — RE 10-2020-0159839 +1 more
Examiner
THROWER, LARRY W
Art Unit
1754
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Korea Electronics Technology Institute
OA Round
2 (Final)
66%
Grant Probability
Favorable
3-4
OA Rounds
2m
Est. Remaining
78%
With Interview

Examiner Intelligence

Grants 66% — above average
66%
Career Allowance Rate
641 granted / 973 resolved
+0.9% vs TC avg
Moderate +13% lift
Without
With
+12.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 7m
Avg Prosecution
63 currently pending
Career history
1030
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
44.1%
+4.1% vs TC avg
§102
26.5%
-13.5% vs TC avg
§112
24.9%
-15.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 973 resolved cases

Office Action

§112
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 . The amendment filed May 14, 2026 has been entered. 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 1-7 and 9 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 1 recites the limitation "calculating a separation force of each area.” There is insufficient antecedent basis for this limitation in the claim. Claim 1 does not recite dividing anything into areas or otherwise introduce any “area.” Areas are first introduced in dependent claim 2. Thus, it is unclear what “each area” refers to and consequently unclear for which regions a separation force must be calculated. It is noted that this limitation had antecedent basis when it appeared in canceled claim 8, through claim 8’s dependency on claims 7, 6, 5 and 2. Claim 1 recites the limitation "an area having a highest distribution (Fs)” and “an area having a lowest distribution (Fw)." There is insufficient antecedent basis for these limitations in the claim. No distribution of any quantity is recited in claim 1. A “distribution of the widths of each area” is first recited in claim 2. Claim 1 recites “calculating a separation force of each area” and thereafter “a result of determining a separation force of an area having a highest distribution (Fs) and a result of determining a separation force of an area having a lowest distribution (Fw).” It is unclear whether “determining a separation force” refers to the previously recited “calculating a separation force of each area” or to a separate determination that is not recited. Claim 1 recites “determining a position in which a difference value between Fw and Fs is less than or equal to a predetermined threshold value.” It is unclear whether “a position” refers to “a position of an assistant support” recited earlier in the same step, or to a second position. Claim 2 recites “wherein the calculating comprises.” Claim 1 as amended recites more than one calculating step, so it is unclear which calculating step claim 2 further defines. Claim 6 recites “calculating a separation force between a cured area and a liquid material in each area in a process of lifting a cured 2D layer” as a step performed “in response to being determined that the assistant support is generated.” Claim 1, as amended, from which claim 6 depends (through claims 5 and 2) already requires “calculating a separation force of each area.” It is unclear whether the separation force of claim 6 is the same separation force as that recited in claim 1 or a different separation force. Claim 7 recites “wherein the calculating the separation force comprises. . .” It is unclear which calculating the separation force is being referred to; the calculating the separation force recited in claim 6, or the calculating the separation force recited in claim 1. Claim 9 recites “a separation force” and then “the separation force between . . .” Claim 1 as amended recites “a separation force of each area.” It is unclear whether the separation force recited in claim 9 is referring to the separation force calculated in claim 1 or a different separation force. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to LARRY THROWER whose telephone number is (571)270-5517. The examiner can normally be reached 9am-5pm MT 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, Susan Leong can be reached at 571-270-1487. 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. /LARRY W THROWER/Primary Examiner, Art Unit 1754
Read full office action

Prosecution Timeline

May 25, 2023
Application Filed
May 20, 2025
Non-Final Rejection mailed — §112
Aug 15, 2025
Response after Non-Final Action
Aug 15, 2025
Response Filed
Dec 10, 2025
Response after Non-Final Action
Dec 10, 2025
Response Filed
May 14, 2026
Response Filed
Sep 09, 2026
Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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METHOD FOR PRODUCING DIP-MOLDED ARTICLE
4y 1m to grant Granted Sep 22, 2026
Patent 12741410
GAS SHIELD GENERATOR FOR A BLOW/FILL/SEAL MACHINE
2y 9m to grant Granted Sep 22, 2026
Patent 12740584
EXTRUDER DEVICE WITH AT LEAST TWO SCREWS AND A COMMON COMPARTMENT
2y 0m to grant Granted Sep 22, 2026
Patent 12715949
CURABLE COMPOSITION FOR STEREOLITHOGRAPHY, EVAPORATIVE PATTERN, AND METHOD FOR PRODUCING THREE-DIMENSIONAL ARTICLE
6y 0m to grant Granted Aug 25, 2026
Patent 12696958
THREE-DIMENSIONAL PRINTING UTILIZING A CAPTIVE ELEMENT
5y 6m to grant Granted Aug 04, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
66%
Grant Probability
78%
With Interview (+12.6%)
3y 7m (~2m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 973 resolved cases by this examiner. Grant probability derived from career allowance rate.

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