Prosecution Insights
Last updated: May 04, 2026
Application No. 18/179,949

QUANTUM DOT, METHOD OF PREPARING THE SAME, AND INK COMPOSITION, LIGHT-EMITTING DEVICE, OPTICAL MEMBER, AND APPARATUS INCLUDING THE QUANTUM DOT

Non-Final OA §102
Filed
Mar 07, 2023
Priority
Mar 25, 2022 — RE 10-2022-0037405
Examiner
NASSIRI MOTLAGH, ANITA
Art Unit
1734
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Samsung Display Co., Ltd.
OA Round
1 (Non-Final)
54%
Grant Probability
Moderate
1-2
OA Rounds
0m
Est. Remaining
80%
With Interview

Examiner Intelligence

Grants 54% of resolved cases
54%
Career Allowance Rate
336 granted / 616 resolved
-10.5% vs TC avg
Strong +26% interview lift
Without
With
+25.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
29 currently pending
Career history
645
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
58.1%
+18.1% vs TC avg
§102
12.0%
-28.0% vs TC avg
§112
25.2%
-14.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 616 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 . This action is in response to Applicant’s response to election/restriction filed 12/23/2025. Applicant’s election without traverse of Group I, claims 1-7 in the reply filed on 12/23/2025 is acknowledged. Claims 8-20 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to nonelected inventions, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 12/23/2025. Claims 1-20 are pending. Claims 1-7 are being examined. Claims 8-20 are withdrawn from further consideration as being drawn to non-elected inventions. 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. Claims 1-7 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Michalska et al. (Michalska et al., “Microfluidic Processing of Ligand-Engineered NiO Nanoparticles for Low-Temperature Hole-Transporting Layers in Perovskite Solar Cells”, Sol. RRL 2021, 5, 2100342). Considering claim 1, Michalska teaches a quantum dot (NiO NPs) comprising a nanoparticle (NiO) and at least one ligand (oleic acid (OA), 4-hydroxybenzoic acid or trimethyloxonium tetraborate) on a surface of the nanoparticle (Michalska, abstract and Figure 1 on page 3). Michalska teaches the quantum dot has a first emission spectrum, the first emission spectrum does not comprise any emission peak in a range of about 400 nm to about 800 nm and the first emission spectrum is from a measurement from a solution (toluene/DMF/IPA) containing the quantum dot (Michalska, Figure 2(c) and top of first column on page 5). Considering claim 2, Michalska teaches the nanoparticle comprises a metal oxide by teaching NiO (Michalska, abstract). Considering claims 3-6, Michalska teaches the at least one ligand comprises a main chain and a functional group, the main chain is hydrophobic and the functional group (COOH) comprises a site chemically bonded to the nanoparticle wherein the main chain comprises a C2-C60 alkenyl group and the functional group comprises one or more unshared electron pairs by teaching ligand engineering of NiO with oleic acid (OA) (Michalska, Figure 1 and section 2.1 on pages 3-4). Considering claim 7, the claims are directed to a composition comprising a nanoparticle and at least one ligand on a surface of the nanoparticle wherein the first emission spectrum does not comprise any emission peak in the range of about 400 nm to about 800 nm. Michalska teaches the claimed composition; thus, it would be expected that the surface of the nanoparticle of Michalska would also not have any defect site. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ANITA NASSIRI-MOTLAGH whose telephone number is (571)270-7588. The examiner can normally be reached M-F 6:30-3:00. 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, Jonathan Johnson can be reached at 571-272-1177. 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. /ANITA NASSIRI-MOTLAGH/Primary Examiner, Art Unit 1734
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Prosecution Timeline

Mar 07, 2023
Application Filed
Jan 28, 2026
Non-Final Rejection — §102
Apr 14, 2026
Interview Requested
Apr 22, 2026
Applicant Interview (Telephonic)
Apr 22, 2026
Examiner Interview Summary

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
54%
Grant Probability
80%
With Interview (+25.9%)
3y 1m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 616 resolved cases by this examiner. Grant probability derived from career allowance rate.

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