Prosecution Insights
Last updated: October 02, 2026
Application No. 18/660,783

HALF-BRIDGE ARRANGEMENT OF AN INVERTER OF AN ELECTRIC DRIVE OF A VEHICLE

Non-Final OA §102
Filed
May 10, 2024
Priority
May 12, 2023 — DE 10 2023 204 435.8
Examiner
GANNON, LEVI
Art Unit
2835
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
ZF Friedrichshafen AG
OA Round
1 (Non-Final)
83%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
90%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allowance Rate
1251 granted / 1513 resolved
+14.7% vs TC avg
Moderate +7% lift
Without
With
+7.1%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 0m
Avg Prosecution
29 currently pending
Career history
1544
Total Applications
across all art units

Statute-Specific Performance

§101
2.3%
-37.7% vs TC avg
§103
43.1%
+3.1% vs TC avg
§102
36.5%
-3.5% vs TC avg
§112
12.3%
-27.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1513 resolved cases

Office Action

§102
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 Election/Restrictions Claims 5 and 18-20 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected species, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 08/31/26. 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. Claims 1, 4, 6-11, and 15-17 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Ishibashi et al. (US 2012/0188712; “Ishibashi”; reference of record). Regarding claim 1, Matsuoka teaches a half-bridge arrangement of an inverter (See figures 7-10) of an electric drive of a vehicle (para. [0096]), comprising, per AC phase: at least one AC tap (38), and DC taps (36); and at least one half-bridge (see half bridges in figures 9-10) comprising: a first topological switch (semiconductor switches 11 in figure 9) formed from one or more switch modules (2), surrounded by an electrically insulating material (The bodies of modules 2 need to be formed from an electrically insulating material to avoid shorting the terminals 8, 36, 38), and having one or more first semiconductor switches (11); and a second topological switch (semiconductor switches 11 in figure 9) formed from one or more switch modules (2), surrounded by an electrically insulating material (The bodies of modules 2 need to be formed from an electrically insulating material to avoid shorting the terminals 8, 36, 38), and having one or more second semiconductor switches (11), wherein each of the one or more switch modules of the first topological switch and the second topological switch has a flat top side with a cooling connection surface (see cooling element 1 in figures 7-8) arranged thereon, and an underside opposite the top side (see configuration in figure 7), and side regions (see side regions in figures 7-8) connecting the top side and underside, wherein a first current connection lug (38) and at least one signal pin (8) arranged at a distance from the first current connection lug (38) project at a first side region (see top view in figure 9) of each switch module, and a respective second current connection lug (36) projects at a second side region (see top view in figure 9) of each switch model opposite the first side region, wherein the switch modules (2) are arranged stacked one above another such that respective current connection lugs (36/38) of the first side region and of the second side region lie one above another (see figures 7-8) and serve either as AC taps (38) or as one of the DC taps (36), wherein free ends of the at least one signal pin (8) of the switch modules point in a same direction (see figure 9), and wherein the second current connection lug (36) of at least one of the switch modules is provided only along a partial region of the second side region (see configuration in figure 9), and the at least one signal pin (8) of another switch module are led next to the second current connection lug (see configurations in figures 8-9). As for claim 4, Ishibashi teaches wherein respective heat sinks (51; figure 9) are arranged on the cooling connection surfaces of the one or more switch modules (2). Regarding claim 6, Ishibashi teaches wherein a printed circuit board (3) is arranged in a region parallel to the top sides and undersides of the one or more switch modules (2), and wherein the one or more switch modules (2) are formed such that the at least one signal pin (8) point in a direction of the printed circuit board and are contacted with the printed circuit board (para. [0067]). Regarding claim 7, Ishibashi teaches a signal rail, which is contacted with the printed circuit board and arranged such that it contacts all of the one or more signal pins of a side region (Para. [0067] teaches the signal/control terminals 8 connected to the control boards 3. The location of contact between the signal/control terminal 8 and control board 3 is interpreted as the signal rail.). As for claim 8, Ishibashi teaches a plurality of half-bridges arranged stacked with their top sides and undersides parallel to one another (See stacked formation in figures 7-8). Regarding claim 9, Ishibashi teaches an electronics module for controlling an electric drive of a vehicle, comprising: an inverter comprising the half-bridge arrangement according to claim 1 (See para. [0002]). As for claim 10, Ishibashi teaches an electric drive of a vehicle, comprising: the electronics module for controlling the electric drive according to claim 9 (See para. [0096]). As for claim 11, Ishibashi teaches a vehicle, comprising: the electric drive according to claim 10 (See para. [0096]). Regarding claim 15, Ishibashi teaches wherein a printed circuit board (3) is arranged in a region parallel to the top sides and undersides of the one or more switch modules (2), and wherein the one or more switch modules (2) are formed such that the at least one signal pin (8) point in a direction of the printed circuit board and are contacted with the printed circuit board (para. [0067]). Regarding claim 16, Ishibashi teaches a signal rail, which is contacted with the printed circuit board and arranged such that it contacts all of the one or more signal pins of a side region (Para. [0067] teaches the signal/control terminals 8 connected to the control boards 3. The location of contact between the signal/control terminal 8 and control board 3 is interpreted as the signal rail.). As for claim 17, Ishibashi teaches a plurality of half-bridges arranged stacked with their top sides and undersides parallel to one another (See stacked formation in figures 7-8). Allowable Subject Matter Claims 2-3 and 12-14 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. The following is a statement of reasons for the indication of allowable subject matter: The best prior art reference of record, Ishibashi, fails to teach: “wherein the one or more switch modules are arranged with their undersides toward one another and directly secured to one another.”, as set forth in claim 2. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Lei et al. (US 2019/0335628; figures 4-5) teaches an inverter package comprising stacked half-bridges, cooling devices, AC terminals, DC terminals, and signal terminals. Lei et al. (US 2017/0259691; figures 3-5) teaches an inverter package comprising stacked half-bridges, cooling devices, AC terminals, DC terminals, and signal terminals. Matsuoka et al. (US 2014/0119087; figures 1, 3, and 15) teaches an inverter package comprising stacked half-bridges, cooling devices, AC terminals, DC terminals, and signal terminals. Any inquiry concerning this communication or earlier communications from the examiner should be directed to LEVI GANNON whose telephone number is (571)272-7971. The examiner can normally be reached 7:00AM-4:30PM. 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, Menatoallah Youssef can be reached at 571-270-3684. 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. /LEVI GANNON/Primary Examiner, Art Unit 2836 September 11, 2026
Read full office action

Prosecution Timeline

May 10, 2024
Application Filed
Sep 14, 2026
Non-Final Rejection mailed — §102 (current)

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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
83%
Grant Probability
90%
With Interview (+7.1%)
2y 0m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1513 resolved cases by this examiner. Grant probability derived from career allowance rate.

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