Prosecution Insights
Last updated: April 19, 2026
Application No. 18/631,428

PULSED ELECTRIC MACHINE CONTROL WITH NOTCHED FILTER

Non-Final OA §103§112
Filed
Apr 10, 2024
Examiner
DINH, THAI T
Art Unit
2846
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Tula Technology, Inc.
OA Round
1 (Non-Final)
86%
Grant Probability
Favorable
1-2
OA Rounds
2y 5m
To Grant
86%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allow Rate
558 granted / 651 resolved
+17.7% vs TC avg
Minimal -0% lift
Without
With
+-0.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
27 currently pending
Career history
678
Total Applications
across all art units

Statute-Specific Performance

§101
3.1%
-36.9% vs TC avg
§103
49.4%
+9.4% vs TC avg
§102
23.4%
-16.6% vs TC avg
§112
20.8%
-19.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 651 resolved cases

Office Action

§103 §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 . 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 1-34 are 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. Claims 1, 13, 18, 24 and 31 recite recitation “desired average output” (emphasis added) which is vague and indefinite. Furthermore, recitation “some transitions” (emphasis added) in claims 1, 2 and 11 is vague and indefinite. Claims 2-12, 14-23, 25-30 and 32-34 are rejected due to their dependencies on the base claims 1, 13, 24 and 31, respectively. For claim 18, the recitations “a pulsed operation of the first electric machine”, on line 2, and “a desired average output”, on line 4, are indefinite. They are unclear whether these recitations are the same as “a pulsed operation of the first electric machine”, on line 4 of claim 13, and “a desired average output”, on line 6 of claim 13 or others. Clarification is required. For claim 25, the recitation “a notch filter”, on line 3, is indefinite. It is unclear whether this recitation is the same as “a notch filter”, on line 8 of claim 24 or others. Clarification is required. Claim Rejections - 35 USC § 103 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. 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 1-9, 13-16, 18-19, 22, 24-28 and 31-33 are rejected under 35 U.S.C. 103 as being unpatentable over Islam et al. (hereinafter Islam, US 2023/0114289 A1) in view of Tao (CN 106602582 A). For claim 1, Islam discloses a method of controlling operation of at least a first electric machine of at least one electric machine on board a vehicle (Figs. 1-2 of Islam discloses a system 10/100 and method of controlling operation of at least a first electric machine (40a/140a) of at least one electric machine 140 on board a vehicle 10 – see Islam, Figs. 1-2, paragraph [0029]), wherein the vehicle has at least one resonance frequency (Fig. 8 of Islam discloses some curves having peaks which show the resonance frequency -- see Islam, Fig. 8, paragraph [0053], lines 6-20), the method comprising: directing pulsed operation of the first electric machine to deliver a desired average output, wherein the pulsed operation causes the first electric machine to alternate between a first output level that is greater than the desired average output and a second output level that is less than the desired average output (Figs. 1-2 of Islam disclose directing pulsed operation of the first electric machine 40a/140a to deliver a desired average output 24, wherein the pulsed operation causes the first electric machine 40a/140a to alternate between a first output level that is greater than the desired average output 24 and a second output level that is less than the desired average output 24 -- see Islam, Figs. 1-2, claims 1, 3 and 5-6; paragraphs [0022]-[0023], [0028], [0033] and [0035]-[0036]); controlling at least some transitions between the first output level and second output level (see Islam, Fig. 1, paragraph [0028]). Islam is silent for providing at least one notch filter at the at least one resonance frequency of the vehicle. However, Tao discloses providing at least one notch filter at the at least one resonance frequency of the vehicle (see Tao, Fig. 1, paragraphs [0014]-[0016]). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filling date of the claimed invention to modify teaching of Islam to include one notch filter as teaching of Tao for purpose of improving the operational stability of the vehicle. For claim 2, Islam in view of Tao disclose the method as recited in claim 1, further comprising providing a pulsing frequency wherein the controlling at least some transitions is dependent on the pulsing frequency (see Islam, Figs. 1-2 and 7C, claim 29, paragraphs [0047], [0065] and [0067]). For claim 3, Islam in view of Tao disclose the method, as recited in claim 2, wherein the pulsing frequency is determined by taking into account Noise, Vibration, and Harshness (NVH) either caused by a measurable parameter of the vehicle or a feature on the vehicle that adjusts an amount of the NVH that is acceptable (see Islam, Fig. 1, Claim 6, paragraphs [0007] and [0039]-[0040]). For claim 4, Islam in view of Tao disclose the method as recited in claim 1, wherein the second output level is zero torque (see Islam, claim 2paragraph [0022], lines 11-12). For claim 5, Islam in view of Tao disclose the method as recited in claim 4 wherein the first electric machine is controlled by a first inverter and in at least some operating states, the first inverter is turned off during at least a portion of a time that the first electric machine is caused to output zero torque (Figs 1-2 of Islam disclose the first electric machine 40a/140a is controlled by a first inverter30/130a and in at least some operating states, the first inverter 30/130a is turned off during at least a portion of a time that the first electric machine 40a/140a is caused to output zero torque – see Islam, Figs. 1-2, paragraphs [0028], [0035], [0050] and [0065]). For claim 6, Islam in view of Tao disclose the method as recited in claim 1 wherein the transitions between the first output level and the second output level are controlled by controlling a torque generated by the first electric machine (see Islam, Figs. 1-2, claim 5, paragraphs [0006], [0026] and [0035]). For claim 7, Islam in view of Tao disclose the method as recited in claim 1 wherein the transitions between the first output level and the second output level are controlled by controlling current supplied to the first electric machine (see Islam, Figs. 1-2, paragraphs [0025]-[0026]). For claims 8 and 32, Islam in view of Tao disclose the method, as recited in claim 1 and/or claim 31, further comprising receiving vehicle resonance data from at least one of a sensor and a lookup table (see Islam, Figs. 1-2 and 4, paragraphs [0034], [0036] and [0057]). For claims 9 and 33, Islam in view of Tao disclose the method as recited in claim 1 and/or claim 31, wherein the at least one resonance frequency of the vehicle is variable and wherein the notch filter is adjustable to match changes in the at least one resonance frequency (see Tao, Fig. 1, paragraphs [0014]-[0016]). For claim 13, Islam discloses a controller arranged to control at least a first electric machine of at least one electric machine on board a vehicle (Figs. 1-2 of Islam disclose a controller 10/100 arranged to control at least a first electric machine 40a/140aof at least one electric machine on board a vehicle 10 -- see Islam, Figs. 1-2, paragraph [0029]), wherein the vehicle has at least one resonance frequency (Fig. 8 of Islam discloses some curves having peaks which show the resonance frequency -- see Islam, Fig. 8, paragraph [0053], lines 6-20), the controller comprising: a pulse controller that directs a pulsed operation of the first electric machine, wherein the pulsed operation causes the first electric machine to alternate between a first output level that is greater than a desired average output and a second output level that is less than the desired average output (similar as claim 1 above, the explanation is omit), the pulse controller comprising: a transition profile generator that controls transitions from the second output level to the first output level (similar as claim 1 above, the explanation is omit); and a notch filter controller that provides at least one notch filter for the at least one resonance frequency (similar as claim 1 above, the explanation is omit). Claims 14 and 25 is “an apparatus” claims which are either same or similar to combination of “a method” claim 1 and claim 8. The explanation is omitted. For claims 15 and 26, Islam in view of Tao disclose the controller as recited in claim 14 and/or claim 25, wherein the pulse controller (Fig. 1 of Islam discloses the controller 20 having the pulse controller 22) further comprises a frequency controller that provides a pulsing frequency wherein the transition profile generator provides a transition profile that is dependent on the pulsing frequency (see Islam, Figs. 1-2 and 7C, claim 29, paragraphs [0047], [0065] and [0067]). For claims 16 and 27, Islam in view of Tao disclose the controller as recited in claim 15 and/or claim 25, wherein the frequency controller is adapted to receive vehicle input or a feature on the vehicle and adjust the pulsing frequency to provide an amount of Noise, Vibration, Harshness (NVH) that is acceptable (see Islam, Fig. 1, Claim 6, paragraphs [0007] and [0039]-[0040]). For claim 18, Islam in view of Tao disclose the controller as recited in claim 13, further comprising a pulsing decision module that determines when a pulsed operation of the first electric machine is desirable and when continuous operation of the first electric machine is desirable to deliver a desired average output, wherein the pulse controller directs the pulsed operation of the first electric machine when the pulsing decision module determines that the pulsed operation of the first electric machine is desirable (see Islam, Figs. 1-2, Abstract, paragraphs [0005], [0020],[0022]-[0025], [0028] and [0035]. It is noted that Islam discloses controller 20 which is silent for including a pulsing decision module. It would have been obvious to one having ordinary skill in the art at the time the invention was made to include a pulsing decision module into Islam’s controller 20, since it has been held that constructing a formerly integral structure in various elements involves only routine skill in the art. Nerwin v. Erlichman, 168 USPQ 177, 179. Besides, using separately control units instead of only one controller to enhance performance). For claims 19 and 28, Islam in view of Tao disclose the controller as recited in claim 13 and/or claim 24, wherein the at least one resonance frequency of the vehicle is variable and wherein the notch filter controller adjusts the at least one notch filter to match changes in the at least one resonance frequency (similar as claim 9 above, the explanation is omit). Claim 22 is “an apparatus” claim which is either same or similar to combination of “a method” claim 4 and claim 5. The explanation is omitted. Claim 24 is “an apparatus” claim which is either same or similar to that of the “an apparatus” claim 13. The explanation is omitted. Claim 31 is “an apparatus” claim which is either same or similar to that of the “a method” claim 24. The explanation is omitted. Claims 10, 12, 20, 23, 29, 30 and 34 are rejected under 35 U.S.C. 103 as being unpatentable over Islam et al. (hereinafter Islam, US 2023/0114289 A1) in view of Tao (CN 106602582 A), further in view of Cho et al. (hereinafter Cho, KR 10-2017-0004406). For claims 10, 20, 29 and 34, Islam in view of Tao disclose the method, as recited in claim 1, claim 13, claim 24 and/or claim 31, wherein the vehicle has at least two resonance frequencies (Figs. 1-8 of Islam discloses the vehicle having at least two resonance frequencies – see Islam, Figs. 1 and 8, paragraph [0053], lines 6-20). Islam in view of Tao discloses the notch filter (see Tao, Fig. 1, paragraphs [0014]-[0016]). Islam and Tao are silent for disclosing at least two notch filters are provided at the at least two resonance frequencies. However, Cho discloses at least two notch filters are provided at the at least two resonance frequencies (Figs. 2 and 3a-3b of Cho discloses at least two notch filters 121a, 121b which are provided at the at least two resonance frequencies - see Cho, Figs. 2 and 3a-3b, paragraphs [[0069]-[0074] and [0079]). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filling date of the claimed invention to modify teaching of Islam in view of Tao to include at least two notch filters as teaching of Cho for purpose of improving the operational stability of the vehicle. For claims 12, 23 and 30, Islam in view of Tao disclose the method, as recited in claim 1, 13 and/or claim 24, wherein the at least one electric machine further comprises a second electric machine, wherein a second inverter controls the second electric machine (Fig. 2 of Islam discloses the at least one electric machine 140 further comprises a second electric machine 140b, wherein a second inverter 130b controls the second electric machine 140b – see Islam, Fig. 2, paragraph [0035]). Islam and Tao are silent for disclosing at least a second notch filter is provided to the second electric machine. However, Cho discloses at least a second notch filter is provided to the second electric machine (see Cho, Figs. 3a-3b, paragraphs [0071]-[0074]). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filling date of the claimed invention to modify teaching of Islam in view of Tao to include at least two notch filters as teaching of Cho for purpose of improving the operational stability of the vehicle. Claims 11, 17 and 21 are rejected under 35 U.S.C. 103 as being unpatentable over Islam et al. (hereinafter Islam, US 2023/0114289 A1) in view of Tao (CN 106602582 A), further in view of Miklosovic et al. (hereinafter Miklosovic, US 2022/0182001 A1). For claims 11 and 21, Islam in view of Tao disclose all limitations as applied to claim 1 and/or claim 13 above. Islam in view of Tao disclose controlling at least some transitions between the first output level and the second output level (see Islam, Fig. 1, paragraph [0028]). Islam and Tao are silent for using a cubic or higher order transition profile. However, Miklosovic discloses controlling at least some transitions between the first output level and the second output level for using a cubic or higher order transition profile (see Miklosovic, Figs. 7-8, Claim 25; paragraphs [0019], [0027], [0032]-[0033] and [0039]). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filling date of the claimed invention to modify teaching of Islam in view of Tao to incorporate teaching of Miklosovic for purpose of improving the operation of the motor. For claim 17, Islam in view of Tao disclose all limitations as applied to claim 1 above. Islam in view of Tao disclose the transition profile generator controls transitions from the second output level to the first output level (see Islam, Fig. 1, paragraph [0028]). Islam and Tao are silent for using a quintic or higher transition profile. However, Miklosovic discloses controlling at least some transitions between the first output level and the second output level for using a quintic or higher transition profile (see Miklosovic, Figs. 7-8, Claim 25; paragraphs [0032]-[0033] and [0039]). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filling date of the claimed invention to modify teaching of Islam in view of Tao to incorporate teaching of Miklosovic for purpose of improving the operation of the motor. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to THAI T DINH whose telephone number is (571)270-3852. The examiner can normally be reached (571)270-3852. 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. /THAI T DINH/Primary Examiner, Art Unit 2846
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Prosecution Timeline

Apr 10, 2024
Application Filed
Nov 29, 2025
Non-Final Rejection — §103, §112
Feb 05, 2026
Interview Requested
Feb 13, 2026
Examiner Interview Summary
Feb 13, 2026
Applicant Interview (Telephonic)
Apr 08, 2026
Response Filed

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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
86%
With Interview (-0.1%)
2y 5m
Median Time to Grant
Low
PTA Risk
Based on 651 resolved cases by this examiner. Grant probability derived from career allow rate.

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