Prosecution Insights
Last updated: July 17, 2026
Application No. 19/005,896

NEODYMIUM-IRON-BORON MAGNET AND PREPARATION METHOD THEREOF

Non-Final OA §112
Filed
Dec 30, 2024
Priority
Feb 01, 2024 — CN 202410142859.X
Examiner
VETERE, ROBERT A
Art Unit
1712
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Yantai Dongxing Magnetic Materials Inc.
OA Round
1 (Non-Final)
61%
Grant Probability
Moderate
1-2
OA Rounds
2y 1m
Est. Remaining
74%
With Interview

Examiner Intelligence

Grants 61% of resolved cases
61%
Career Allowance Rate
541 granted / 886 resolved
-3.9% vs TC avg
Moderate +13% lift
Without
With
+12.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 7m
Avg Prosecution
43 currently pending
Career history
936
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
85.7%
+45.7% vs TC avg
§102
2.9%
-37.1% vs TC avg
§112
3.8%
-36.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 886 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 . Election/Restrictions Applicant’s election of Group I in the reply filed on 4/27/26 is acknowledged. Because applicant did not distinctly and specifically point out the supposed errors in the restriction requirement, the election has been treated as an election without traverse (MPEP § 818.01(a)). Claim 20 is withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim.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 4/27/26. 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 1-19 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 FeaGb. The letter G in this formula is not customary and it is not clear from this language what the scope of this compound is intended to be. Based on the specification and claim 2, G is interpreted as if it is limited to the elements recited at p. 3, lines 17-21 of the specification. Claim 1 also recites “applying an extrusion force to the stacked” metal sheets. It is not clear, however, how an extrusion process is performed. Extrusion is a process wherein a force is applied to press a material through a die to achieve a desired shape. While such a process can be performed on certain metals, it is not customarily performed on iron alloy sheets coated with rare earth metal alloys. Additionally, nothing in the specification indicates that a die is used. Prior Art Di et al. (US 2023/0070437) teaches a process of forming a neodymium iron boron magnet (Abst.), comprising the steps of: preparing blank magnet sheets, coating the sheets with a rare earth material and performing a grain boundary diffusion on the coated sheets (Abst.; ¶¶ 0057-0062). Di does not teach the claimed FeaGb sheets, the claimed RexMyBz material as the rare earth coating or applying an extrusion force to the stack. Komura et al. (US 2015/0041022) teaches a process of forming NdFeB magnets (Abst.) comprising the steps of: providing a base material, coating the base material with a rare earth alloy and diffusing the rare earth alloy into the base material (¶¶ 0014-0022, 0035, 0048). Komura fails to teach the claimed FeaGb sheets or applying an extrusion force to the stack. Bai et al. (US 2021/0050150) is also cited for teaching NdFeB magnets formed using a variety of different rare earth compounds (Abst., e.g.). None of the prior art on record, taken individually or in combination, fairly teaches or suggests all the limitations of claim 1. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Robert A Vetere whose telephone number is (571)270-1864. The examiner can normally be reached M-F 7:30-4:00 EST. 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, Michael Cleveland can be reached at (571) 270-1034. 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. /ROBERT A VETERE/ Primary Examiner, Art Unit 1712
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Prosecution Timeline

Dec 30, 2024
Application Filed
Jun 23, 2026
Non-Final Rejection mailed — §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
61%
Grant Probability
74%
With Interview (+12.8%)
3y 7m (~2y 1m remaining)
Median Time to Grant
Low
PTA Risk
Based on 886 resolved cases by this examiner. Grant probability derived from career allowance rate.

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