Prosecution Insights
Last updated: April 19, 2026
Application No. 18/489,080

DEVICE FOR DETECTING A MAGNETIC FIELD AND SYSTEM OF MAGNETIC FIELD MEASUREMENT COMPRISING SUCH A DEVICE

Non-Final OA §DP
Filed
Oct 18, 2023
Examiner
NASIR, TAQI R
Art Unit
2858
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
OA Round
3 (Non-Final)
87%
Grant Probability
Favorable
3-4
OA Rounds
2y 3m
To Grant
99%
With Interview

Examiner Intelligence

Grants 87% — above average
87%
Career Allow Rate
426 granted / 489 resolved
+19.1% vs TC avg
Moderate +13% lift
Without
With
+13.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
49 currently pending
Career history
538
Total Applications
across all art units

Statute-Specific Performance

§101
4.7%
-35.3% vs TC avg
§103
47.2%
+7.2% vs TC avg
§102
26.0%
-14.0% vs TC avg
§112
12.7%
-27.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 489 resolved cases

Office Action

§DP
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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 02/06/2026 has been entered. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the claims at issue are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); and In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on a nonstatutory double patenting ground provided the reference application or patent either is shown to be commonly owned with this application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The USPTO internet Web site contains terminal disclaimer forms which may be used. Please visit http://www.uspto.gov/forms/. The filing date of the application will determine what form should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to http://www.uspto.gov/patents/process/file/efs/guidance/eTD-info-I.jsp. Claims 1, 23 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1 of copending Application No. 19403433. Although the claims at issue are not identical, they are not patentably distinct from each other because all limitations the claims in application 18489080 are obvious by the claims in applicant SN19403433, as shown below; Conflicting claims SN 18489080 Conflicting claims US19403433 (currently amended) A device for detecting a magnetic field comprising: a first tapered acoustic waveguide having a first base and a first tapered end; a first electrically conductive wire rigidly coupled to the first tapered end; and an electroacoustic transducer rigidly coupled to the first base such that the magnetic field at the first tapered end is detected. 1. System (10) for measuring a magnetic field (Bz) comprising: - a device (20) for detecting the magnetic field (Bz), comprising a tapered acoustic waveguide (40) having a base (41) and a tapered end (42), an electrically-conductive wire (50) rigidly coupled to the tapered end (42) and an electroacoustic transducer (60) rigidly coupled to the base (41) ; and - a control and acquisition device (30) coupled to the device (20) for detecting the magnetic field (Bz) comprising a generator (33I) configured to supply a pair of current pulses (I+, I-) of opposite directions or a plurality of frequency-modulated current pulses into the electrically- conductive wire (50) and an acquisition circuit (32) configured to detect electrical signals (S) supplied by the electroacoustic transducer (60) or a generator (33V) configured to supply a pair of voltage pulses of opposite signs or a plurality of frequency-modulated voltage pulses controlling the electroacoustic transducer (60) and an acquisition circuit (32) configured to detect electrical signals (S) supplied by the electrically-conductive wire (50). 23. (previously presented) A magnetic field measurement system comprising the device for detecting a magnetic field according to claim 1, and a control and acquisition device connected to the device for detecting a magnetic field comprising a generator configured to supply at least one current pulse in the first electrically conductive wire and an acquisition chain for detecting an electrical signal supplied by the electroacoustic transducer or a generator configured to supply at least one voltage pulse controlling the electroacoustic transducer, and an acquisition chain for detecting an electrical signal supplied by the first electrically conductive wire. 1. System (10) for measuring a magnetic field (Bz) comprising: - a device (20) for detecting the magnetic field (Bz), comprising a tapered acoustic waveguide (40) having a base (41) and a tapered end (42), an electrically-conductive wire (50) rigidly coupled to the tapered end (42) and an electroacoustic transducer (60) rigidly coupled to the base (41) ; and - a control and acquisition device (30) coupled to the device (20) for detecting the magnetic field (Bz) comprising a generator (33I) configured to supply a pair of current pulses (I+, I-) of opposite directions or a plurality of frequency-modulated current pulses into the electrically- conductive wire (50) and an acquisition circuit (32) configured to detect electrical signals (S) supplied by the electroacoustic transducer (60) or a generator (33V) configured to supply a pair of voltage pulses of opposite signs or a plurality of frequency-modulated voltage pulses controlling the electroacoustic transducer (60) and an acquisition circuit (32) configured to detect electrical signals (S) supplied by the electrically-conductive wire (50). Examiner’s Note: Claims 1 and 23 stand rejected under Double Patenting rejection as outlined above. Applicant amended independent claim 1 by adding the limitations and overcome rejection. In combination with other limitations of the claims. The cited prior arts fail to teach “A device for detecting a magnetic field comprising: a first tapered acoustic waveguide having a first base and a first tapered end; a first electrically conductive wire rigidly coupled to the first tapered end; and an electroacoustic transducer rigidly coupled to the first base such that the magnetic field at the first tapered end is detected as required by claims 1. Claims 2 - 27 depends on claim 1 also overcome the rejection based on the dependency. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Any inquiry concerning this communication or earlier communications from the examiner should be directed to TAQI R NASIR whose telephone number is (571)270-1425. The examiner can normally be reached 9AM-5PM EST M-F. 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, Lee Rodak can be reached at (571) 270-5628. 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. /TAQI R NASIR/Examiner, Art Unit 2858 /LEE E RODAK/Supervisory Patent Examiner, Art Unit 2858
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Prosecution Timeline

Oct 18, 2023
Application Filed
Oct 31, 2023
Response after Non-Final Action
May 29, 2025
Non-Final Rejection — §DP
Sep 02, 2025
Response Filed
Nov 03, 2025
Final Rejection — §DP
Feb 06, 2026
Request for Continued Examination
Feb 15, 2026
Response after Non-Final Action
Mar 02, 2026
Non-Final Rejection — §DP (current)

Precedent Cases

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Magnetic Field Detector
2y 5m to grant Granted Mar 24, 2026
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2y 5m to grant Granted Mar 10, 2026
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MAGNETIC DETECTION DEVICE
2y 5m to grant Granted Mar 03, 2026
Patent 12560567
MEMS GAS SENSOR AND MANUFACTURING METHOD THEREOF
2y 5m to grant Granted Feb 24, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
87%
Grant Probability
99%
With Interview (+13.4%)
2y 3m
Median Time to Grant
High
PTA Risk
Based on 489 resolved cases by this examiner. Grant probability derived from career allow rate.

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