Prosecution Insights
Last updated: October 02, 2026
Application No. 18/043,036

780 MPA-GRADE ULTRA-HIGH REAMING STEEL HAVING HIGH SURFACE QUALITY AND HIGH PERFORMANCE STABILITY, AND MANUFACTURING METHOD THEREFOR

Non-Final OA §112
Filed
Feb 26, 2023
Priority
Aug 31, 2020 — CN 202010896424.6 +1 more
Examiner
KESSLER, CHRISTOPHER S
Art Unit
1759
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Baoshan Iron & Steel Co., Ltd.
OA Round
3 (Non-Final)
60%
Grant Probability
Moderate
3-4
OA Rounds
3m
Est. Remaining
74%
With Interview

Examiner Intelligence

Grants 60% of resolved cases
60%
Career Allowance Rate
491 granted / 817 resolved
-4.9% vs TC avg
Moderate +14% lift
Without
With
+14.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 10m
Avg Prosecution
41 currently pending
Career history
861
Total Applications
across all art units

Statute-Specific Performance

§101
1.0%
-39.0% vs TC avg
§103
46.5%
+6.5% vs TC avg
§102
14.3%
-25.7% vs TC avg
§112
29.5%
-10.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 817 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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 16 June 2026 has been entered. Status of Claims Responsive to the amendment filed 16 June 2026 claims 1, 16, and 17 are amended. Claims 12-16 and 18 were previously withdrawn as directed to a non-elected invention, but are now rejoined. Claims 1, 3-8, 11-16 and 18 are currently under examination. Status of Previous Rejections Responsive to the amendment filed 16 June 2026 the rejections based on Pipard are withdrawn. New grounds of rejection are presented. Election/Restrictions Claim 1 is directed to an allowable product. Pursuant to the procedures set forth in MPEP § 821.04(B), claims 12-16 and 18, directed to the process of making or using an allowable product, previously withdrawn from consideration as a result of a restriction requirement, are hereby rejoined and fully examined for patentability under 37 CFR 1.104. Because all claims previously withdrawn from consideration under 37 CFR 1.142 have been rejoined, the restriction requirement as set forth in the Office action mailed on 4 June 2025 is hereby withdrawn. In view of the withdrawal of the restriction requirement as to the rejoined inventions, applicant(s) are advised that if any claim presented in a divisional application is anticipated by, or includes all the limitations of, a claim that is allowable in the present application, such claim may be subject to provisional statutory and/or nonstatutory double patenting rejections over the claims of the instant application. Once the restriction requirement is withdrawn, the provisions of 35 U.S.C. 121 are no longer applicable. See In re Ziegler, 443 F.2d 1211, 1215, 170 USPQ 129, 131-32 (CCPA 1971). See also MPEP § 804.01. 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. Claim 18 is 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 18 requires that the steel consists of carbon, silicon, sulfur, nitrogen, manganese, aluminum, titanium, and molybdenum. This composition is not recognized by the skilled artisan to be a steel. If applicant intended to include iron, this limitation cannot be read in from the specification, and the transitional language “consisting of” has well-established legal meaning to exclude any elements that a re not enumerated. The point of infringement of claim 18 cannot be determined and the claim is indefinite. The following is a quotation of 35 U.S.C. 112(d): (d) REFERENCE IN DEPENDENT FORMS.—Subject to subsection (e), a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. The following is a quotation of pre-AIA 35 U.S.C. 112, fourth paragraph: Subject to the following paragraph [i.e., the fifth paragraph of pre-AIA 35 U.S.C. 112], a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. Claim 18 is rejected under 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, 4th paragraph, as being of improper dependent form for failing to further limit the subject matter of the claim upon which it depends, or for failing to include all the limitations of the claim upon which it depends. Applicant may cancel the claim(s), amend the claim(s) to place the claim(s) in proper dependent form, rewrite the claim(s) in independent form, or present a sufficient showing that the dependent claim(s) complies with the statutory requirements. Claim 18 requires that the steel consists of carbon, silicon, sulfur, nitrogen, manganese, aluminum, titanium, and molybdenum. This composition appears to exclude the element iron which was enumerated previously. If applicant intended to include iron, this limitation cannot be read in from the specification, and the transitional language “consists of” has well-established legal meaning to exclude any elements that are not enumerated. The scope of claim 18 is considered to be outside of the scope of the parent claim, and therefore fails to further limit. Allowable Subject Matter Claims 1, 3-8, and 11-16 are allowed. Applicant argues in the Remarks of 16 June 2026 that the prior art Pipard requires the element Cr, and as such the composition is not anticipated by Pipard. In response, the rejections over PIpard are withdrawn. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to CHRISTOPHER S KESSLER whose telephone number is (571)272-6510. The examiner can normally be reached 9-5:30. 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, Curt Mayes can be reached at 571-272-1234. 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. CHRISTOPHER S. KESSLER Primary Examiner Art Unit 1734 /CHRISTOPHER S KESSLER/Examiner, Art Unit 1759
Read full office action

Prosecution Timeline

Show 1 earlier event
Feb 26, 2023
Response after Non-Final Action
Oct 03, 2025
Non-Final Rejection mailed — §112
Jan 04, 2026
Response Filed
Apr 22, 2026
Final Rejection mailed — §112
Jun 16, 2026
Response after Non-Final Action
Jul 13, 2026
Request for Continued Examination
Jul 14, 2026
Response after Non-Final Action
Sep 23, 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

3-4
Expected OA Rounds
60%
Grant Probability
74%
With Interview (+14.4%)
3y 10m (~3m remaining)
Median Time to Grant
High
PTA Risk
Based on 817 resolved cases by this examiner. Grant probability derived from career allowance rate.

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