Prosecution Insights
Last updated: April 19, 2026
Application No. 18/997,141

METHOD FOR SYNCHRONIZING MOVEMENT CONTROL AND LOCATION RECOGNITION FOR MICRO-ROBOT BY USING BED-INTEGRATED ELECTROMAGNETIC FIELD APPARATUS

Non-Final OA §112
Filed
Jan 20, 2025
Examiner
LI, JOHN DENNY
Art Unit
3798
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Korea Institute Of Medical Microrobotics
OA Round
1 (Non-Final)
64%
Grant Probability
Moderate
1-2
OA Rounds
3y 6m
To Grant
99%
With Interview

Examiner Intelligence

Grants 64% of resolved cases
64%
Career Allow Rate
158 granted / 246 resolved
-5.8% vs TC avg
Strong +49% interview lift
Without
With
+48.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 6m
Avg Prosecution
36 currently pending
Career history
282
Total Applications
across all art units

Statute-Specific Performance

§101
6.5%
-33.5% vs TC avg
§103
47.7%
+7.7% vs TC avg
§102
12.2%
-27.8% vs TC avg
§112
29.7%
-10.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 246 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 without traverse of claims 1-9 in the reply filed on 1/19/2026 is acknowledged. Claims 7-9 are withdrawn. Claim Objections Claim 5 is objected to because of the following informalities: In claim 5, "to 5DoF Inverse model" should be changed to "to a 5Dof model" for grammar. Appropriate correction is required. 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 1-7 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. Regarding claim 1, in line 16, the limitation "an AC magnetic field" has unclear antecedent basis. It is unclear how this AC magnetic field relates to the AC magnetic field previously set forth. For examination purposes, this limitation will be interpreted as reciting "the AC magnetic field". Regarding claim 1, in line 17, the limitation "an AC current" has unclear antecedent basis. It is unclear how this AC current relates to the AC current previously set forth. For examination purposes, this limitation will be interpreted as reciting "the AC current". Regarding claim 2, the limitations "a first electromagnet", "a second electromagnet", and "a third electromagnet" have unclear antecedent basis. It is unclear how these electromagnets relates to the first, second, and third electromagnets previously set forth. For examination purposes, these limitations will be interpreted as referring to the previously set forth first, second, and third electromagnets. Regarding claim 5, the limitation "an X-ray image" has unclear antecedent basis. It is unclear how this an X-ray image relates to the X-ray image previously set forth. For examination purposes, this limitation will be interpreted as reciting "the X-ray image". Allowable Subject Matter Claims 1-7 would be allowable if rewritten or amended to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action. The following is a statement of reasons for the indication of allowable subject matter: The prior art does not disclose the limitations set forth in independent claim 1. Specifically, although individual pieces of prior art disclose the limitations related to using x-ray to generate an image, selection a target, generating a path, and using AC electromagnetic tracking, having three electromagnetic coils for tracking using AC current, and using DC current to steer an in-vivo surgical device, the prior art does not additional disclose the limitations related to the extraction, integration, and conversion operations of AC tracking in combination with these other aspects. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. US20190365486 – discloses the limitations relating to using x-ray to generate an image, selection a target, generating a path, and using AC electromagnetic tracking but not the limitations related to DC magnetic steering and not the additional details about the extraction, integration, and conversion operations of AC tracking US20210341279 – discloses the limitations related to having three electromagnetic coils for tracking using AC current US20120149981 – discloses using DC current to steer an in-vivo surgical device Any inquiry concerning this communication or earlier communications from the examiner should be directed to John Li whose telephone number is (313)446-4916. The examiner can normally be reached Monday to Thursday; 5:30 AM to 3:30 PM Eastern. 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, Pascal Bui-Pho can be reached at (571) 272-2714. 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. /JOHN D LI/Primary Examiner, Art Unit 3798
Read full office action

Prosecution Timeline

Jan 20, 2025
Application Filed
Feb 09, 2026
Non-Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12588954
ARTICULATING GUIDE WITH INTEGRAL POSITION SENSOR
2y 5m to grant Granted Mar 31, 2026
Patent 12575885
AUGMENTED REALITY GUIDANCE SYSTEM FOR CARDIAC INTERVENTIONAL SURGERY
2y 5m to grant Granted Mar 17, 2026
Patent 12569301
SURGICAL NAVIGATION SYSTEM FOR ALIGNMENT OF A SURGICAL INSTRUMENT
2y 5m to grant Granted Mar 10, 2026
Patent 12564368
NUCLEAR MEDICINE DIAGNOSIS APPARATUS, ACQUISITION PERIOD EXTENDING METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM
2y 5m to grant Granted Mar 03, 2026
Patent 12558067
TEMPERATURE INSENSITIVE BACKING STRUCTURE FOR INTRALUMINAL IMAGING DEVICES
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

1-2
Expected OA Rounds
64%
Grant Probability
99%
With Interview (+48.7%)
3y 6m
Median Time to Grant
Low
PTA Risk
Based on 246 resolved cases by this examiner. Grant probability derived from career allow rate.

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