Prosecution Insights
Last updated: April 19, 2026
Application No. 18/642,092

APPLIED MAGNETIC FIELD SYNTHESIS AND PROCESSING OF IRON NITRIDE MAGNETIC MATERIALS

Final Rejection §112
Filed
Apr 22, 2024
Examiner
CAZAN, LIVIUS RADU
Art Unit
3729
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Regents Of The University Of Minnesota
OA Round
4 (Final)
62%
Grant Probability
Moderate
5-6
OA Rounds
3y 7m
To Grant
88%
With Interview

Examiner Intelligence

Grants 62% of resolved cases
62%
Career Allow Rate
587 granted / 940 resolved
-7.6% vs TC avg
Strong +25% interview lift
Without
With
+25.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 7m
Avg Prosecution
48 currently pending
Career history
988
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
42.7%
+2.7% vs TC avg
§102
28.0%
-12.0% vs TC avg
§112
23.7%
-16.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 940 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 . Response to Arguments Applicant’s arguments with respect to claim(s) 1, 3, 4 and 6-24 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. 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, 4 and 6-24 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. In claim 1, line 2m it is unclear what is meant by “wherein the workpiece if cast”. In claim 1, lines 4 and 5, it is unclear what is meant by “a plurality of iron-nitride based phase domain”, since this limitation appears to simultaneously refer to plural and singular elements. In claim 1, line 8, it is unclear whether “the anisotropically-shaped iron-based grains comprises” was intended to read “the anisotropically-shaped iron-based grains comprise” or “the anisotropically-shaped iron-based grain comprises”, particularly given the dependent claims (see below). In claim 1, 10, the limitation “the anisotropic grain” lacks proper antecedent basis. In claim 6, the limitation “the at least one anisotropically-shaped iron-based grain” lacks proper antecedent basis. In claim 7, the limitation “the at least one anisotropically-shaped iron-based grain” lacks proper antecedent basis. 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 nonprovisional extension fee (37 CFR 1.17(a)) 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 mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to LIVIUS R CAZAN whose telephone number is (571)272-8032. The examiner can normally be reached Monday - Friday noon-8:30 pm ET. 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, Thomas Hong can be reached at 571-272-0993. 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. /LIVIUS R. CAZAN/Primary Examiner, Art Unit 3729
Read full office action

Prosecution Timeline

Apr 22, 2024
Application Filed
Feb 22, 2025
Non-Final Rejection — §112
May 16, 2025
Response Filed
Sep 02, 2025
Final Rejection — §112
Sep 22, 2025
Response after Non-Final Action
Oct 28, 2025
Non-Final Rejection — §112
Nov 10, 2025
Response Filed
Mar 20, 2026
Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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Patent 12506458
PACKAGING MODULE AND PACKAGING METHOD OF BAW RESONATOR
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Patent 12500494
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2y 5m to grant Granted Dec 16, 2025
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

5-6
Expected OA Rounds
62%
Grant Probability
88%
With Interview (+25.4%)
3y 7m
Median Time to Grant
High
PTA Risk
Based on 940 resolved cases by this examiner. Grant probability derived from career allow rate.

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