Prosecution Insights
Last updated: April 19, 2026
Application No. 17/974,994

SINGLE-CRYSTALLINE STACK STRUCTURE OF TWO-DIMENSIONAL TRANSITION METAL CHALCOGENIDE AND METHOD OF FABRICATING THE SAME

Non-Final OA §103
Filed
Oct 27, 2022
Examiner
MILLER, DANIEL H
Art Unit
1783
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Research & Business Foundation Sungkyunkwan University
OA Round
1 (Non-Final)
53%
Grant Probability
Moderate
1-2
OA Rounds
4y 2m
To Grant
73%
With Interview

Examiner Intelligence

Grants 53% of resolved cases
53%
Career Allow Rate
367 granted / 687 resolved
-11.6% vs TC avg
Strong +19% interview lift
Without
With
+19.3%
Interview Lift
resolved cases with interview
Typical timeline
4y 2m
Avg Prosecution
30 currently pending
Career history
717
Total Applications
across all art units

Statute-Specific Performance

§103
66.2%
+26.2% vs TC avg
§102
14.7%
-25.3% vs TC avg
§112
11.6%
-28.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 687 resolved cases

Office Action

§103
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 . Election/Restrictions Applicant’s election without traverse of group I claims 1-17 in the reply filed on 12/30/2025 is acknowledged. Claims 18-20 are withdrawn. Claim Rejections - 35 USC § 103 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) 1-17 is/are rejected under 35 U.S.C. 103 as being unpatentable over Kang. Kang (WO 2017018834 A1) teaches nucleating chalcogen, the substrate can be grapehene or boron nitride 2D material, surface treatment oof the substrate is performed with a chalcogen precursor and a transition metal. The crystalline material of the substrate can form defects which can be used for nucleation sites for the chalcogen precursor and a transition metal (see translation and claims). It would have been obvious to one of ordinary skill in the art at the time of the invention to provide a 2d material with defects for nucleating a patterned chalcogen precursor and a transition metal for growth of a 2D thin film (see translation and claims). Regarding claims 1 2, 11, Kang teaches a growth process in a CVD chamber employing a transition metal (cyanide, arsenide) radical (see translation figure 9). Regarding claims 1-17, Kang teaches forming a 2D decalcogenide thin film from the chalcogen precursor and transition metal radical, including reacting with another metal radical, as claimed (See translation including claims and Examples). Kang is considered to show substantially identical process as that claimed by applicant (see Examples). To the extent necessary to provide it would have been obvious to one of ordinary skill in the art at the time of the invention to provide a combination of embodiments taught within the scope of the art. CITED RELEVEANT ART: US 2014/40251204 teaches graphene growth from chalcogen linked transition metal films (See abstract, [0006, 0010] and claims). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to DANIEL H MILLER whose telephone number is (571)272-1534. The examiner can normally be reached M-TH 9-6. 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, Veronica Ewald can be reached at 571-272-8519. 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. /DANIEL H MILLER/Primary Examiner, Art Unit 1783
Read full office action

Prosecution Timeline

Oct 27, 2022
Application Filed
Mar 13, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12594579
ENVIRONMENTAL BARRIER COATING AND METHOD OF REPAIRING THE SAME
2y 5m to grant Granted Apr 07, 2026
Patent 12577023
Recyclable paper packaging with high barrier to water vapor and oxygen
2y 5m to grant Granted Mar 17, 2026
Patent 12571129
TWO-DIMENSIONAL VERTICAL COMPOSITE LAMINATE INCLUDING GRAPHENE AND HEXAGONAL BORON NITRIDE AND METHOD OF FABRICATING SAME
2y 5m to grant Granted Mar 10, 2026
Patent 12540105
HIGH TEMPERATURE COATINGS
2y 5m to grant Granted Feb 03, 2026
Patent 12534639
MICHAEL ADDITION CURABLE COMPOSITION, COATING COMPOSITION CONTAINING THE SAME, AND COATED ARTICLE
2y 5m to grant Granted Jan 27, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
53%
Grant Probability
73%
With Interview (+19.3%)
4y 2m
Median Time to Grant
Low
PTA Risk
Based on 687 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month