Prosecution Insights
Last updated: April 19, 2026
Application No. 18/279,759

FE-NI ALLOY, IN PARTICULAR FOR TRANSPORTING AND STORING LIQUID HYDROGEN

Non-Final OA §103§112
Filed
Aug 31, 2023
Examiner
SU, XIAOWEI
Art Unit
1733
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Aperam
OA Round
1 (Non-Final)
71%
Grant Probability
Favorable
1-2
OA Rounds
3y 5m
To Grant
83%
With Interview

Examiner Intelligence

Grants 71% — above average
71%
Career Allow Rate
527 granted / 741 resolved
+6.1% vs TC avg
Moderate +12% lift
Without
With
+12.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
73 currently pending
Career history
814
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
47.0%
+7.0% vs TC avg
§102
12.9%
-27.1% vs TC avg
§112
23.7%
-16.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 741 resolved cases

Office Action

§103 §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 with traverse of Species 7 (Claims 20 and 21) in the reply filed on 01/26/2026 is acknowledged. The traversal is on the ground(s) that the identified species are not mutually exclusive: claims 4 and 5 relate to a cold strip and a method for manufacturing the same the cold strip is obtained by first manufacturing a hot strip (in accordance with claims 20-21) and then submitting it to an additional step of cold-rolling and therefore claims 4 and 5 (species 1) are also readable upon the elected species. This is not found persuasive because this case is filed under PCT Rule 13.1 and the restriction requirement is based on whether Species 1 (claims 4-5) and Species 7 (Claims 20-21) share a specifical technical feature. Since JPH1060528A teaches an alloy that meets the recited composition in claim 1 and the alloy is made by hot rolling (Abstract; [0015] to [0028]; [0033]; [0034]), Species 1 (claims 4-5) and Species 7 (Claims 20-21) lack special technical feature and the requirement is still deemed proper and is therefore made FINAL. Claims 4-10, 12-14 and 16-19 are withdrawn. Claims 1-3 and 20-21 are examined herein. 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 1-3 and 20-21 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 1 recites the limitation "the manufacturing" in the last line. There is insufficient antecedent basis for this limitation in the claim. Appropriate correction is required. 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claims 1-3 and 20-21 are rejected under 35 U.S.C. 103 as being unpatentable over JP’018 (JP 2020-190018). Regarding claims 1 and 2, JP’018 discloses ([0025] to [0037]) a Fe-Ni alloy with a composition that overlaps the recited composition and it would be obvious to one of ordinary skill in the art to select an amount of each element based on the ranges disclosed in JP’018 to make a Fe-Ni alloy that meet the recited composition in claims 1 and 2. See MPEP 2144.05 I. Element Claim 1 (mass %) JP’018 (mass %) Overlap (mass %) C 0.04-0.15 0.0-0.1 0.04-0.1 Si 0.1-0.35 0.0-1.0 0.1-0.35 Mn 0.5-1.25 0.0-1.0 0.5-1.0 Cu 0.001-0.85 0.0-0.1 0.001-0.1 Ni 36.5-38.5 35-40 36.5-38.5 Fe + impurities Balance Balance Balance Regarding claim 3, JP’018 discloses that the alloy contains 0.3 wt% or less Cr, 0.1 wt% or less Co, 0.005 wt. % or less S, 0.025 wt. % or less P, 0.5 wt.% or less Mo, 0.1 wt. % or less O, 0.1 wt. % or less Ca, 0.1 wt. % or less Mg and 0.01 wt. % or less Al ([0025] to [0037]), which overlap the recited amount of impurities in claim 3. In the case where the claimed ranges "overlap or lie inside ranges disclosed by the prior art" a prima facie case of obviousness exists. In re Wertheim, 541 F.2d 257, 191 USPQ 90 (CCPA 1976); In re Woodruff, 919 F.2d 1575, 16 USPQ2d 1934 (Fed. Cir. 1990). See MPEP 2144.05 I. Thus, claim 3 is obvious over JP’018. Regarding claims 20 and 21, JP’018 discloses a method of making the Fe-Ni alloy comprising forming a melt comprising the disclosed composition; forming the alloy into billets; hot rolling the billets to obtain a hot-rolled plate ([0045] to [0047]), which meets the limitations recited in claims 20 and 21. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Xiaowei Su whose telephone number is (571)272-3239. The examiner can normally be reached 8:00-5:00. 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 Hendricks can be reached at 5712721401. 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. /XIAOWEI SU/Primary Examiner, Art Unit 1733
Read full office action

Prosecution Timeline

Aug 31, 2023
Application Filed
Mar 05, 2026
Non-Final Rejection — §103, §112 (current)

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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
71%
Grant Probability
83%
With Interview (+12.1%)
3y 5m
Median Time to Grant
Low
PTA Risk
Based on 741 resolved cases by this examiner. Grant probability derived from career allow rate.

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