Prosecution Insights
Last updated: April 19, 2026
Application No. 18/517,852

SUBSTRATE TREATING APPARATUS AND METHOD OF TREATING SUBSTRATE USING THE SAME

Non-Final OA §103
Filed
Nov 22, 2023
Examiner
MANDALA, MICHELLE
Art Unit
2893
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Samsung Display Co., Ltd.
OA Round
1 (Non-Final)
91%
Grant Probability
Favorable
1-2
OA Rounds
2y 4m
To Grant
99%
With Interview

Examiner Intelligence

Grants 91% — above average
91%
Career Allow Rate
898 granted / 987 resolved
+23.0% vs TC avg
Moderate +8% lift
Without
With
+7.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
21 currently pending
Career history
1008
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
48.4%
+8.4% vs TC avg
§102
34.2%
-5.8% vs TC avg
§112
10.3%
-29.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 987 resolved cases

Office Action

§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 . 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. Claim(s) 1, 10, 13 and 15 are rejected under 35 U.S.C. 103 as being unpatentable over Chung et al. (2008/0038020) in view of Lin et al. (8,636,907). Re claims 1 and 10, Chung et al. a chamber (7) defining a chamber cavity; a substrate carrier (6) movable in a first direction inside the chamber cavity (Fig. 2) with magnets (4). Chung et al. does not disclose a filter disposed inside the chamber cavity (42), defining an opening through which the substrate carrier (in this case a contaminated stream) passes, and including a magnet filter disposed in the opening and being rotatable. Lin et al. disclose a filter disposed inside the chamber cavity, defining an opening through which the substrate carrier passes, and including a magnet filter (13) disposed in the opening and being rotatable (Fig. 1). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combine Chung et al. and Lin et al. to enable the magnetic filter to be added to Chung et al.’s apparatus as taught by Lin et al. in order to remove magnetic and non-magnetic contaminants. Re claim 13, the combination of Chung and Lin discloses wherein passing the substrate carrier (6 in Chung), includes the magnet filter collecting metal foreign substances (disclosed in Lin) disposed on the substrate carrier. Re claim 15, Lin et al. disclose wherein the magnet filter includes a first magnet (9) forming an outer surface. Allowable Subject Matter Claims 2-9, 11, 12, 14 and 16-20 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: Pending the correction of issues outlined in the rejection above, the following is a statement of reasons for the indication of allowable subject matter: the prior art does not disclose or fairly suggest the following in combination the remaining limitations recited in each claim: wherein the magnet filter extends in a second direction intersecting the first direction, and has a polygonal column shape including n side surfaces, wherein where n is a natural number greater than or equal to three, as recited in claim 2; wherein the magnet filter is rotatable by 360/n° around an axis that is directed parallel to the second direction, wherein where n is a natural number equal to or greater than three, as recited in claim 3; wherein the filter includes a gear disposed at a first end and a second end of the magnet filter, as recited in claim 4; wherein the magnet filter includes a first magnet forming an outer surface, as recited in claim 5; wherein the first magnet includes a south pole and a north pole alternately arranged, as recited in claim 6; wherein the substrate carrier includes a second magnet disposed on one surface located adjacent to the magnet filter, as recited in claim 7; wherein the second magnet includes a south pole and a north pole alternately arranged, as recited in claim 8; wherein the magnet filter is rotated by a magnetic force between the first magnet and the second magnet; as recited in claim 9; wherein the magnet filter extends in one direction, and has a polygonal column shape including n side surfaces, wherein n is a natural number greater than or equal three, as recited in claim 11; wherein the magnet filter is rotatable by 360/n° around an axis that is directed parallel to the one direction, as recited in claim 12; wherein rotating a magnet filter includes maintaining the chamber cavity in a vacuum state, as recited in claim 14; wherein the substrate carrier includes a second magnet disposed on one surface located adjacent to the magnet filter, as recited in claim 16; wherein each of the first magnet and the second magnet includes a south pole and a north pole alternately arranged, as recited in claim 17; wherein rotating a magnet filter includes, rotating the magnet filter by a magnetic force located between the first magnet and the second magnet, as recited in claim 18; wherein rotating a magnet filter includes, maintaining an atmospheric pressure state within the chamber cavity, as recited in claim 19; wherein the filter includes a gear disposed at a first end and a second end of the magnet filter, as recited in claim 20. Citation of Pertinent Prior Art The following prior art made of record and not relied upon is considered pertinent to applicant's disclosure: US 2020/0129895 A1, US 2016/0221000 A1 disclose a similar configuration for a substrate treating apparatus. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MICHELLE MANDALA whose telephone number is (571)272-1858. The examiner can normally be reached 8:00-5:00 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, Sue Purvis can be reached at 571-272-1236. 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. /MICHELLE MANDALA/Primary Examiner, Art Unit 2893 February 18, 2026
Read full office action

Prosecution Timeline

Nov 22, 2023
Application Filed
Feb 18, 2026
Non-Final Rejection — §103 (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
91%
Grant Probability
99%
With Interview (+7.9%)
2y 4m
Median Time to Grant
Low
PTA Risk
Based on 987 resolved cases by this examiner. Grant probability derived from career allow rate.

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