Prosecution Insights
Last updated: July 17, 2026
Application No. 18/867,812

MAGNETIC PARTICULATE IMAGING DEVICE

Non-Final OA §112
Filed
Nov 21, 2024
Priority
May 30, 2022 — JP 2022-087523 +1 more
Examiner
HOQUE, FARHANA AKHTER
Art Unit
2858
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Mitsubishi Electric Corporation
OA Round
1 (Non-Final)
86%
Grant Probability
Favorable
1-2
OA Rounds
9m
Est. Remaining
97%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allowance Rate
751 granted / 874 resolved
+17.9% vs TC avg
Moderate +11% lift
Without
With
+11.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
24 currently pending
Career history
892
Total Applications
across all art units

Statute-Specific Performance

§101
2.0%
-38.0% vs TC avg
§103
70.1%
+30.1% vs TC avg
§102
24.0%
-16.0% vs TC avg
§112
1.9%
-38.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 874 resolved cases

Office Action

§112
CTNF 18/867,812 CTNF 86084 DETAILED ACTION Notice of Pre-AIA or AIA Status 07-03-aia AIA 15-10-aia The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA. Claim Rejections - 35 USC § 112 Claim 1 is rejected under 35 U.S.C 112(b) as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor regards as the invention. Claim 1 recites, in pertinent part, “wherein at least one of a radial thickness of a hollow cylinder of the winding frame and a thickness of a flange of the winding frame is greater than or equal to a first skin thickness and less than or equal to a second skin thickness.” It is unclear whether: Only the radial thickness of the hollow cylinder must satisfy the recited thickness range. Only the thickness of the flange must satisfy the recited thickness range. Both the radial thickness of the hollow cylinder and the thickness of the flange must satisfy the recited thickness range. Further, claim 1 recites: “a first skin thickness” and “a second skin thickness”. It is unclear whether whether the first and second thicknesses correspond to: The hollow cylinder The flange The winding frame as a whole A skin depth associated with an electromagnetic field, or Another structure of physical parameter Claims 2-9 are rejected under 35 U.S.C. 112 because they depend from claim 1, which is rejected under 35 U.S.C. 112. Claims 1-9 are rejected under 35 U.S.C 112 for the reasons set forth above. The prior art of record fails to disclose or render obvious the claimed subject matter. Accordingly, upon overcoming the outstanding 35 U.S.C. 112 rejection, the application would be in condition for allowance. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to FARHANA AKHTER HOQUE whose telephone number is (571)270-7543. The examiner can normally be reached Monday-Friday, 7:30am-4:00pm. 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, Eman A Alkafawi can be reached at 571-272-4448. 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. /FARHANA A HOQUE/Primary Examiner, Art Unit 2858 Application/Control Number: 18/867,812 Page 2 Art Unit: 2858 Application/Control Number: 18/867,812 Page 3 Art Unit: 2858 Application/Control Number: 18/867,812 Page 4 Art Unit: 2858
Read full office action

Prosecution Timeline

Nov 21, 2024
Application Filed
Jun 16, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12681046
PROBE PASSING METHOD AND PROBE
2y 0m to grant Granted Jul 14, 2026
Patent 12680976
DEVICE FOR MEASURING ELECTRICAL CONDUCTIVITY IN LIQUID MEDIA
1y 11m to grant Granted Jul 14, 2026
Patent 12674837
METHOD AND APPARATUS FOR TESTING ELECTRONIC DEVICES
1y 11m to grant Granted Jul 07, 2026
Patent 12669533
DETECTION DEVICE AND OPERATION METHOD THEREOF
3y 0m to grant Granted Jun 30, 2026
Patent 12669470
METHOD AND SYSTEM FOR MEASURING RELATIVE CONCENTRATIONS OF MATERIALS IN A MIXTURE BY MEASURING (AC) DYNAMIC MAGNETIC SUSCEPTIBILITY
2y 0m to grant Granted Jun 30, 2026
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
86%
Grant Probability
97%
With Interview (+11.2%)
2y 5m (~9m remaining)
Median Time to Grant
Low
PTA Risk
Based on 874 resolved cases by this examiner. Grant probability derived from career allowance rate.

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