Office Action Predictor
Last updated: April 16, 2026
Application No. 18/641,426

COLLECTION NET FOR RESTRICTING LEAKAGE CURRENT OF UNDERWATER MOTOR

Non-Final OA §103
Filed
Apr 21, 2024
Examiner
NGUYEN, VIET P
Art Unit
2834
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Vision Tech Corporation
OA Round
1 (Non-Final)
61%
Grant Probability
Moderate
1-2
OA Rounds
2y 4m
To Grant
84%
With Interview

Examiner Intelligence

Grants 61% of resolved cases
61%
Career Allow Rate
435 granted / 708 resolved
-6.6% vs TC avg
Strong +22% interview lift
Without
With
+22.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
23 currently pending
Career history
731
Total Applications
across all art units

Statute-Specific Performance

§101
2.1%
-37.9% vs TC avg
§103
53.4%
+13.4% vs TC avg
§102
19.6%
-20.4% vs TC avg
§112
21.3%
-18.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 708 resolved cases

Office Action

§103
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 the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 1-2 are rejected under 35 U.S.C. 103 as being unpatentable over US 20100301713 A1 to Breuning et al. in view of EP 2112749 A2 to Fukasaku et al. Regarding claim 1, Breuning et al. discloses a motor comprising: a cylindrical main body (Fig. 3: 10), and configured to accommodate the motor (stator 11, rotor 13) therein and to increase an area of a neutral line (Fig. 1: S) of a three-phase power cable (U, V, W) connected to the motor by connecting the neutral line (Fig. 3: 2; see Fig. 1 module 2 has neutral point S) to an inner surface (14) of the cylindrical main body; and a ground terminal (Fig. 6: G1-G3) mounted on an outer surface (Fig. 5: through opening 32 to connect circuit to the outside) of the cylindrical main body, and connected to ground. However, it fails to disclose a cylindrical main body formed of a conductive material and configured to accommodate the underwater motor; so as to collect leakage current leaking from phase voltage lines of the three-phase power cable connected to the underwater motor. Fukasaku et al. teaches a cylindrical main body formed of a conductive material ([0007]: the connecting portion and the housing are electrically conducted through the liquid refrigerant) and configured to accommodate the underwater motor ([0015]: hermetically sealed); so as to collect leakage current leaking from phase voltage lines of the three-phase power cable connected to the underwater motor ([0027]: Therefore, the current leaked from the connecting portion 36 flows toward the opened end of the insulating tube 38 through liquid refrigerant in the direction indicated by the arrow A along the elongated portion 37. Then, the leakage current flows to the housing 11 through the liquid refrigerant outside the insulating tube 38. The length of the arrow A represents the creepage distance between the connecting portion 36 and the housing 11). It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to use the teaching of the leakage current collection as disclosed by Fukasaku et al. to the motor disclosed by Breuning et al. One would have been motivated to do so to remove the leakage current from the motor. Regarding claim 2, Breuning et al. discloses the cylindrical main body formed of the conductive material has a circular cylindrical shape [0027]. Claim 3 is rejected under 35 U.S.C. 103 as being unpatentable over US 20100301713 A1 to Breuning et al. in view of EP 2112749 A2 to Fukasaku et al. as applied to claim 1 above and further in view of DE 102014002476 A1 to Honda. Regarding claim 3, Breuning et al. and Fukasaku et al. discloses a motor as described above. However, it fails to disclose the cylindrical main body formed of the conductive material has a polygonal cylindrical shape. Honda teaches the cylindrical main body formed of the conductive material has a polygonal cylindrical shape [0047]. It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to use the teaching of the polygonal shape as disclosed by Honda to the motor disclosed by Breuning et al. and Fukasaku et al. One would have been motivated to do so to match the shape of the motor or control circuit. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to VIET P NGUYEN whose telephone number is (571)272-9457. The examiner can normally be reached M-F 12-8. 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, Tulsidas C Patel can be reached at 571-272-2098. 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. /VIET P NGUYEN/Primary Examiner, Art Unit 2834
Read full office action

Prosecution Timeline

Apr 21, 2024
Application Filed
Jan 04, 2026
Non-Final Rejection — §103
Apr 07, 2026
Response Filed

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12603552
ELECTRIC DRIVE UNIT FOR A VEHICLE
2y 5m to grant Granted Apr 14, 2026
Patent 12595779
PLANT FOR THE EXPLOITATION OF RENEWABLE ENERGY SOURCES IN OPEN SEA
2y 5m to grant Granted Apr 07, 2026
Patent 12592608
MOTOR UNIT AND VEHICLE STEERING DEVICE
2y 5m to grant Granted Mar 31, 2026
Patent 12589850
WAVE-POWERED PROPULSION SHROUD
2y 5m to grant Granted Mar 31, 2026
Patent 12589851
WAVE-POWERED PROPULSION SHROUD
2y 5m to grant Granted Mar 31, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
61%
Grant Probability
84%
With Interview (+22.4%)
2y 4m
Median Time to Grant
Low
PTA Risk
Based on 708 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in for Full Analysis

Enter your email to receive a magic link. No password needed.

Free tier: 3 strategy analyses per month