Prosecution Insights
Last updated: August 16, 2026
Application No. 18/548,952

STEEL MATERIAL

Non-Final OA §103
Filed
Sep 05, 2023
Priority
Mar 24, 2021 — nonprovisional of PCTJP2021012350
Examiner
YANG, JIE
Art Unit
1734
Tech Center
1700 — Chemical & Materials Engineering
Assignee
NIPPON STEEL Corporation
OA Round
2 (Non-Final)
62%
Grant Probability
Moderate
2-3
OA Rounds
6m
Est. Remaining
82%
With Interview

Examiner Intelligence

Grants 62% of resolved cases
62%
Career Allowance Rate
777 granted / 1249 resolved
-2.8% vs TC avg
Strong +19% interview lift
Without
With
+19.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
59 currently pending
Career history
1306
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
54.1%
+14.1% vs TC avg
§102
12.5%
-27.5% vs TC avg
§112
16.1%
-23.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1249 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 . DETAILED ACTION Claim 2 has been amended; Claims 1-2 remain for Examination, wherein claim 1 is an independent claim. Information Disclosure Statement IDS filed on 12/09/2025 has been recorded. Previous Claim Objections/Rejections Previous rejection of claim 2 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joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention has been withdrawn in view of the Applicant’s “Arguments/Remarks with amendment” filed on 3/6/2026. Previous rejection of claims 1-2 on the ground of nonstatutory obviousness type double patenting as being unpatentable over Claims 1-4 of copending application No. 17/754748 (US 11,952,650 B2) has been withdrawn in view of the Applicant’s “Arguments/Remarks with amendment” filed on 3/6/2026. Previous rejection of claims 1-2 on the ground of nonstatutory obviousness type double patenting as being unpatentable over Claims 1-2 of copending application No. 17/754566 (US 12,181,012 B2) has been withdrawn in view of the Applicant’s “Arguments/Remarks with amendment” filed on 3/6/2026. Previous rejection of claims 1-2 on the ground of nonstatutory obviousness type double patenting as being unpatentable over Claims 5-12 of copending application No. 17/904444 (US-PG-pub 2023/0085279A1) has been withdrawn in view of the Applicant’s “Arguments/Remarks with amendment” filed on 3/6/2026. 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) 1-2 is/are rejected under 35 U.S.C. 103 as being unpatentable over Ibakaki et al (US-PG-pub 2003/0024610 A1, listed in IDS filed on 6/5/2025, thereafter PG’610) in view of Masuda et al (JP 2017179524 A1, with on-line translation, thereafter JP’524). JP’231 in view of PG’790 is applied to the instant claims 1-3 and 9 for the same reason as stated in the previous office action dated 9/19/2025. Regarding the amended features in claim 2, the example #A in table 1 of PG’610 including 0.23 mass% Ni, which reads on the claimed limitation as recited in the instant claim. Notes: Oura et al (US-Pg-pub 2018/0216214 A1) is cited as a reference only. Response to Arguments Applicant’s arguments to the art rejection to Claims 1-2 have been considered but they moot in view of the new ground rejection as stated above. The Applicant’s arguments are summarized as following: 1, the cited prior art(s) indicates different dimensions of number density of V-based precipitates compare to the claimed limitation in the instant claim 1. 2, JP’524 teaches about 300 pieces/mm3, which is 10 times below the claimed density. 3, the surface Rz is directly related to the claimed density of V-based precipitates. In response, Regarding the Applicant arguments 1-2, Firstly, as pointed out in the rejection for the instant claims in the previous office action dated 12/10/2025, JP’524 specify the precipitates including maximum diameter of V-based carbonitride of 20 nm or less and number density of V-based carbonitride with longer diameter of 20 nm or less of 30/μm2 or more in order to obtain outstanding fatigue-resistant properties (Abstract, claims, par.[0008], [00190]-[0027] of JP’524), which overlaps the claimed density of V-based precipitates since JP;524 indicates the precipitates is in the steel wire material and not limit only one analysis layer of the alloy (Abstract, claims, par.[0008], [00190]-[0027] of JP’524). Secondly, overlapping in density of V-based precipitates creates a prima facie case of obviousness. MPEP 2144 05 I. Regarding the argument 3, it is noted that the argued surface Rz is not included in the instant claims and the figure on page 8/11 of the Applicant’s “Arguments/Remarks with amendment” filed on 3/6/2026 is not in the instant application. Proper “132 Declaration” with comparison data with the prior art(s) is suggested to show the criticality of the claimed density of V-based precipitates. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any extension fee pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to JIE YANG whose telephone number is (571)270-1884. The examiner can normally be reached on IFP. 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 J Johnson can be reached on 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 an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /JIE YANG/Primary Examiner, Art Unit 1734
Read full office action

Prosecution Timeline

Sep 05, 2023
Application Filed
Dec 10, 2025
Non-Final Rejection mailed — §103
Mar 06, 2026
Response Filed
Apr 07, 2026
Final Rejection mailed — §103
Jul 06, 2026
Response after Non-Final Action

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12703895
IMPROVEMENTS IN AND RELATING TO PROCESSING METHODS AND PROCESSING APPARATUS
7y 2m to grant Granted Aug 11, 2026
Patent 12692581
TIRE CORD STEEL WITH HIGH STRENGTH AND LOW WIRE BREAKAGE RATE, AND ROLLING METHOD AND USE THEREOF
2y 10m to grant Granted Jul 28, 2026
Patent 12692561
Blast Furnace - Converter Steel Production Method Based on Carbon Cycling
2y 4m to grant Granted Jul 28, 2026
Patent 12686901
METHOD FOR PRODUCING MARTENSITIC STAINLESS STEEL STRIP, AND MARTENSITIC STAINLESS STEEL STRIP
3y 12m to grant Granted Jul 21, 2026
Patent 12662723
HIGH STRENGTH, COMBUSTION-RESISTANT, TUBE-EXTRUDABLE AIRCRAFT-GRADE MAGNESIUM ALLOY
2y 3m to grant Granted Jun 23, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

2-3
Expected OA Rounds
62%
Grant Probability
82%
With Interview (+19.4%)
3y 5m (~6m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1249 resolved cases by this examiner. Grant probability derived from career allowance 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