Prosecution Insights
Last updated: April 19, 2026
Application No. 18/701,442

ELECTRIC MOTOR

Non-Final OA §102§103
Filed
Apr 15, 2024
Examiner
MASIH, KAREN
Art Unit
2846
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Dyson Technology Limited
OA Round
1 (Non-Final)
91%
Grant Probability
Favorable
1-2
OA Rounds
2y 1m
To Grant
98%
With Interview

Examiner Intelligence

Grants 91% — above average
91%
Career Allow Rate
904 granted / 996 resolved
+22.8% vs TC avg
Moderate +7% lift
Without
With
+6.7%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
25 currently pending
Career history
1021
Total Applications
across all art units

Statute-Specific Performance

§101
4.9%
-35.1% vs TC avg
§103
54.1%
+14.1% vs TC avg
§102
11.2%
-28.8% vs TC avg
§112
16.9%
-23.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 996 resolved cases

Office Action

§102 §103
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 . Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1,2,3,9,13-15 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by (2021/099041) Sun et al as cited by Applicant . Sun et al discloses electric motor see fig 3 and 4 , a rotor (45) , a stator (41) comprising a stator core and windings (44), a magnetic low pass filter comprising a coil (48) having one or more turns and one or more capacitors (76) connected in series with coil. Paragraph 42. Wherein excitation of winding generates stator flux, coil is linked to stator flux and filter attenuates harmonics in the stator flux , see paragraphs 38-42. Dependent claims 2, 2, 9, 13-15 such as one or more magnets is shown fig 3 reference 47 , and filter has resonant frequency greater than running frequency is shown in paragraph 42 . 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. Claim(s) s 4-8, 10-12 are rejected under 35 U.S.C. 103 as being unpatentable over Sun et al in view of JP2017028803 both cited by Applicant. Sun et al as disclosed above lacks disclosing magnets segments and coil of filter wound about magnet, . JP2017028803 discloses magnet segments and coil of filter wound Abou magnet, see fig 3 . It would have been obvious to one of ordinary skill in the art to combine the motor of Sun et al with magnet segments and coil wound about magnet of JP2017028803 for improved control. Any inquiry concerning this communication or earlier communications from the examiner should be directed to KAREN MASIH whose telephone number is (571)272-2068. The examiner can normally be reached m-f 8-5 with second Friday off. 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, Eduardo Colon Santana can be reached at 571-272-2060. 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. /KAREN MASIH/Primary Examiner, Art Unit 2846
Read full office action

Prosecution Timeline

Apr 15, 2024
Application Filed
Jan 06, 2026
Non-Final Rejection — §102, §103 (current)

Precedent Cases

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2y 5m to grant Granted Mar 17, 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
91%
Grant Probability
98%
With Interview (+6.7%)
2y 1m
Median Time to Grant
Low
PTA Risk
Based on 996 resolved cases by this examiner. Grant probability derived from career allow rate.

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