Prosecution Insights
Last updated: July 17, 2026
Application No. 18/859,527

TRANSITION-METAL CHALCOGENIDE WAFER, PREPARATION METHOD THEREFOR, AND DEVICE THEREOF

Non-Final OA §112
Filed
Oct 23, 2024
Priority
Jun 09, 2023 — CN 202310687180.4 +1 more
Examiner
ROLLAND, ALEX A
Art Unit
1759
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Peking University
OA Round
1 (Non-Final)
47%
Grant Probability
Moderate
1-2
OA Rounds
2y 0m
Est. Remaining
74%
With Interview

Examiner Intelligence

Grants 47% of resolved cases
47%
Career Allowance Rate
283 granted / 599 resolved
-17.8% vs TC avg
Strong +27% interview lift
Without
With
+26.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
26 currently pending
Career history
642
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
92.2%
+52.2% vs TC avg
§102
3.4%
-36.6% vs TC avg
§112
3.6%
-36.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 599 resolved cases

Office Action

§112
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 . Election/Restrictions Applicant’s election without traverse of Group II is acknowledged. Claims 1-4, 16 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 3/17/26. 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 5-15, 21-23 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 5: In the description of the support assembly, it is not clear how a slot assembly can be arranged in a through hole. Additional clarity with respect to the structure and arrangement of the support assembly would correct the problem. Claims 7, 15: “the growth base” lacks antecedent basis. Claims 10, 14: It is not clear which substrate “the substrate” refers to. Claim 22: It is not clear how through holes can be snapped therein with the slot assembly. Additional clarity with respect to the structure and arrangement of the through holes would correct the problem. Claims 7-12, 14: All these claims contain improper Markush groups including “comprising” language. The remaining claims are merely rejected for depending from a rejected claim. Allowable Subject Matter Claims 5-15, 21-23 contain allowable subject matter assuming the above 112 rejections are overcome in a manner that does not broaden the claims. The following is a statement of reasons for the indication of allowable subject matter: Asari (US 2011/0309562 A1) and Liu (CN 113511681 A) are considered the closest prior art with Asari generally teaching a slot assembly for stacking wafers and batch-wise CVD and with Liu teaching the formation of transition metal chalcogenides without a dedicated growth substrate. In either case, the prior art does not teach a plurality of growth modules where each growth module comprises a growth substrate, platy substrate with a transition metal precursor, and a supply source of chalcogenide elements. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ALEX A ROLLAND whose telephone number is (571)270-5355. The examiner can normally be reached M-F 10-6:30. 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, Curtis Mayes can be reached at 5712721234. 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. /ALEX A ROLLAND/Primary Examiner, Art Unit 1759
Read full office action

Prosecution Timeline

Oct 23, 2024
Application Filed
May 05, 2026
Non-Final Rejection mailed — §112 (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
47%
Grant Probability
74%
With Interview (+26.8%)
3y 9m (~2y 0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 599 resolved cases by this examiner. Grant probability derived from career allowance rate.

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