Prosecution Insights
Last updated: May 29, 2026
Application No. 17/784,728

HIGH-STRENGTH HOT-ROLLED STEEL SHEET HAVING EXCELLENT YIELD RATIO, AND METHOD FOR MANUFACTURING SAME

Non-Final OA §112
Filed
Jun 13, 2022
Priority
Dec 20, 2019 — RE 10-2019-0172004 +1 more
Examiner
MCGUTHRY BANKS, TIMA MICHELE
Art Unit
1733
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Posco
OA Round
4 (Non-Final)
82%
Grant Probability
Favorable
4-5
OA Rounds
0m
Est. Remaining
84%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allowance Rate
949 granted / 1163 resolved
+16.6% vs TC avg
Minimal +2% lift
Without
With
+2.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
41 currently pending
Career history
1226
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
52.7%
+12.7% vs TC avg
§102
6.2%
-33.8% vs TC avg
§112
33.4%
-6.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1163 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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114.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 02/02/2026 has been entered. Election/Restrictions Claims 7-9 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim.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 12/13/2024. Status of Claims Claim 1 is currently amended, Claims 2 and 5 and canceled, Claims 3, 4, and 6 are as previously presented, and Claims 7-9 are withdrawn. Claim Objections Claim 1 is objected to because of the following informalities: in line 5, “0,005 to 0,2% of Ti” should be “0.005 to 0.2% of Ti.” Appropriate correction is required. Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL - The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claim 1, 3, 4, and 6 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Claim 1 recites “95 vol% of martensite formed by continuous hot rolling and subsequent coiling without quenching and tempering” in lines 6 and 7. The negative limitation of “without quenching and tempering” has no support in the specification as originally filed. The only recitation of quenching in the specification is in [0055], which is “Immediately after the hot rolling, the hot-rolled steel sheet is quenched.” There is no recitation of tempering in the specification. Claims dependent on any of the rejected claims are likewise rejected under this statute. Response to Arguments The response filed 02/02/2026 was sufficient to overcome the rejection over KR 101546134 as the range of Cr is outside of the claimed range. Allowable Subject Matter The claims as currently presented are free from rejections under prior art but are not in condition for indication of allowable subject matter due to the rejections under 35 U.S.C. 112(a). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Hirashima et al (US 11,846,003 B2) teaches a hot rolled steel sheet and coiled with further cold rolling and annealing (Claim 5) with 0.01-1.0% Cr (column 3, line 18). The yield strength is greater than 1227 MPa and tensile strengths as recited (TABLEs 5-7). Martensite is 90% or more (Claim 1). CN 105734412 A (CN ‘412) teaches a hot rolled steel plate. Table 4 teaches a yield strength and yield ratio less than 1227 MPa and 0.75, respectively, as recited in Claim 1. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Tima M. McGuthry-Banks whose telephone number is (571)272-2744. The examiner can normally be reached Monday through Friday, 7:30 am to 4:00 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, Keith D. Hendricks can be reached at (571) 272-1401. 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. Tima M. McGuthry-Banks Primary Examiner Art Unit 1733 /TIMA M. MCGUTHRY-BANKS/Primary Examiner, Art Unit 1733
Read full office action

Prosecution Timeline

Show 2 earlier events
Apr 30, 2025
Response Filed
May 19, 2025
Final Rejection mailed — §112
Jul 18, 2025
Response after Non-Final Action
Jul 31, 2025
Final Rejection mailed — §112
Oct 31, 2025
Response after Non-Final Action
Feb 02, 2026
Request for Continued Examination
Feb 04, 2026
Response after Non-Final Action
Feb 27, 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

4-5
Expected OA Rounds
82%
Grant Probability
84%
With Interview (+2.0%)
2y 4m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 1163 resolved cases by this examiner. Grant probability derived from career allowance rate.

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