Prosecution Insights
Last updated: May 28, 2026
Application No. 18/133,379

METHOD FOR ESTIMATING A MAGNETIC FIELD DEVIATION, A MAGNETIC RESONANCE DEVICE AND A COMPUTER PROGRAM PRODUCT

Non-Final OA §112
Filed
Apr 11, 2023
Priority
Apr 14, 2022 — EU 22168603.3
Examiner
NGUYEN, LAM S
Art Unit
2853
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Siemens Healthcare GmbH
OA Round
1 (Non-Final)
79%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
80%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allowance Rate
1102 granted / 1400 resolved
+10.7% vs TC avg
Minimal +1% lift
Without
With
+0.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
48 currently pending
Career history
1459
Total Applications
across all art units

Statute-Specific Performance

§101
1.1%
-38.9% vs TC avg
§103
57.8%
+17.8% vs TC avg
§102
29.3%
-10.7% vs TC avg
§112
6.6%
-33.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1400 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 . In response to the restriction requirement, Applicant elected claims 1-3, 5-12, and 17-18 for further examination. As a result, claims 4 and 13-16 are withdrawn from further prosecution. 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. Claims 1 and 17-18 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 enablement requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to enable one skilled in the art to which it pertains, or with which it is most nearly connected, to make and/or use the invention. Regarding to “a magnetic field model” for estimating the at least one value of the deviation, the Specification as filed, in paragraph [0088] (US 2023/0333190), simply states “In accordance with the explanations in sections 1-6, a magnetic field model has been developed”. The sections 1-6 in the Specification however are just describing the deviation in mathematical terms and no specific on how to develop a physical model that takes the gradient strength as an input to output the estimation of the deviation. In addition, paragraph [0080] discusses the description of the deviation of the actual gradient magnetic field from the setpoint gradient magnetic field in term of the vectorial components, the paragraph however does not detailly explain on how to develop/build a model that operates to perform the estimation of the deviation. Again, paragraph [0037] states thanks to the (new) magnetic field model, the actual gradient magnetic field may advantageously be estimated more accurately, the Specification teaching does not fully support on how to develop/build such model. As a result, one of ordinary skill in the art would not know how to develop the model to estimate the deviation as claimed. Claims 2-3, 5-12 are rejected because they depend on claim 1. CONTACT INFORMATION Any inquiry concerning this communication or earlier communications from the examiner should be directed to LAM S NGUYEN whose telephone number is (571)272-2151. 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, DOUGLAS RODRIGUEZ, can be reached on 571-431-0716. 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. /LAM S NGUYEN/ Primary Examiner, Art Unit 2853
Read full office action

Prosecution Timeline

Apr 11, 2023
Application Filed
Oct 01, 2025
Non-Final Rejection mailed — §112
Oct 28, 2025
Response Filed

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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
79%
Grant Probability
80%
With Interview (+0.8%)
2y 8m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1400 resolved cases by this examiner. Grant probability derived from career allowance rate.

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