Prosecution Insights
Last updated: April 19, 2026
Application No. 18/670,854

Medium or High Voltage Instrument Voltage Transformer

Final Rejection §102§112
Filed
May 22, 2024
Examiner
AURORA, REENA
Art Unit
2858
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
ABB Schweiz AG
OA Round
2 (Final)
87%
Grant Probability
Favorable
3-4
OA Rounds
2y 8m
To Grant
73%
With Interview

Examiner Intelligence

Grants 87% — above average
87%
Career Allow Rate
1010 granted / 1161 resolved
+19.0% vs TC avg
Minimal -14% lift
Without
With
+-14.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
30 currently pending
Career history
1191
Total Applications
across all art units

Statute-Specific Performance

§101
2.1%
-37.9% vs TC avg
§103
25.3%
-14.7% vs TC avg
§102
34.0%
-6.0% vs TC avg
§112
28.1%
-11.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1161 resolved cases

Office Action

§102 §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 . This communication is in response to amendment received on 03/16/2026. Applicant has canceled claim 2. Claims 1 and 3 – 17 are presented for examination. 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 and 3 - 17 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. A broad range or limitation together with a narrow range or limitation that falls within the broad range or limitation (in the same claim) may be considered indefinite if the resulting claim does not clearly set forth the metes and bounds of the patent protection desired. See MPEP § 2173.05(c). In the present instance, claims 1 and 15 - 17 recites the broad recitation an inner surface of the first fixation part is located adjacent to an outer surface of the medium or high voltage sensor unit, and the claim also recites an inner surface of the first fixation part is in contact with outer surface of the medium or high voltage sensor unit which is the narrower statement of the range/limitation. The claim(s) are considered indefinite because there is a question or doubt as to whether the feature introduced by such narrower language is (a) merely exemplary of the remainder of the claim, and therefore not required, or (b) a required feature of the claims. Claims 3 - 14 are rejected by virtue of their dependency on claim 1. Claim Rejections - 35 USC § 102 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 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 and 3 - 17 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Stollwerck et al. (2020/0363456). As to claim 1, Stollwerck et al. (hereinafter Stollwerck) discloses a voltage indication device comprising a medium or high voltage sensing unit (20, Fig. 1); a primary connection (260, Fig. 2); a cable connection (360); and at least one fixation part (244); wherein the primary connection (260) is connected to a first terminal (210) of the medium or high voltage sensor unit (2); wherein the cable connection (360) is connected to a second terminal (240) of the medium or high voltage sensor unit (20); wherein the at least one fixation part (244, 242) is located at a base end (460, 241) of the medium or high voltage sensor unit (20); wherein the at least one fixation part (244, 242) is configured to connect to an external structure (21), wherein the at least one fixation part (244, 242) comprises a first fixation part (244) and a second fixation part (242), wherein an inner surface of the first fixation part (244) is located adjacent to an outer surface of the medium or high voltage sensor unit (20), wherein the inner surface of the first fixation part is in contact with the outer surface of the medium or high voltage sensor unit, wherein the outer surface of the medium or high voltage sensor unit (20) is cylindrically shaped (1) or conically shaped; and wherein the second fixation part (242) is connected to the first fixation part (244), (Fig. 1 – 5, [0097], [0085], [0103], [0106], [0107], [0108], [0115], [0116]). PNG media_image1.png 788 536 media_image1.png Greyscale As to claim 3, Stollwerck discloses that an inner surface of the first fixation part (244) is cylindrically shaped (244) or conically shaped (Fig. 3). As to claim 4, Stollwerck discloses that the second fixation part (242) is connected to an end portion of the first fixation part (244) (Fig. 3). As to claim 5, Stollwerck discloses that the end portion of the first fixation part (244) is annular shaped (Fig. 3). As to claims 6 - 8, Stollwerck discloses that the medium or high voltage sensor unit (2) comprises a capacitive (190, 200, [0022], [0025], [0101], Fig. 1, 2) and/or resistive voltage divider. As to claims 9 - 10, Stollwerck discloses that the at least a portion of one fixation part (244, 242) is connected to a third terminal of the medium or high voltage sensor unit [0022, The second impedance is arranged inside the voltage detector and is electrically connected between the voltage contact and the ground contact of the voltage detector. This second impedance may be formed by one or more capacitors, one or more resistors, or one or more inductances.]. As to claim 11, Stollwerck discloses that the sensor comprises an earthing wire (360), and wherein the earthing wire (360) is connected to the at least a portion of one fixation part (244, 242) to provide an earth connection for the medium or high voltage sensor unit (2), (Fig. 5), [0103], [0106], [0108], [116]. As to claim 12, Stollwerck discloses that the sensor comprises an earthing wire (360), and wherein the earthing wire (360) is connected to the earth terminal (370) located within one fixation part (244, 242) to provide an earth connection for the medium or high voltage sensor unit (2), (Fig. 2), [0109]. As to claim 13, Stollwerck discloses that the sensor comprises a silicone rubber sleeve (240), and wherein the silicone rubber sleeve is located around an outer surface of the medium or high voltage sensing unit (2), (Fig. 1, 2), [0042, The entire body may be elastically expandable and/or elastically compressible. It may be made from, or comprise, a polymeric material, such as silicone, or EPDM rubber. It may be made from, or comprise, a thermoplastic elastomer. Such polymeric materials may provide elastic expandability and/or compressibility. An elastic body (i.e. an elastically expandable or elastically compressible body) may facilitate resilient support for the voltage detector.], [0057], [0067], [0103, The body 240 consists of an electrically conductive polymeric material, namely electrically conductive EPDM rubber. ]. As to claim 14, Stollwerck discloses that the silicone rubber sleeve (244) is located at least partly around an outer surface of the primary connection (260) (Fig. 1, 2), [0057], [0067], [0103]. As to claim 15, Stollwerck discloses a voltage indication device comprising a medium or high voltage sensing unit (2, Fig. 1); a primary connection (260, Fig. 2); a cable connection (360); and at least one fixation part (244); wherein the primary connection (260) is configured to connect to a first terminal (200) of the medium or high voltage sensor unit (20); wherein the cable connection (360) is configured to connect to a second terminal (240) of the medium or high voltage sensor unit (20); wherein the at least one fixation part (244, 242) is configured to be located at a base end of the medium or high voltage sensor unit (20); and wherein the at least one fixation part (244, 242) is configured to connect to an external structure, wherein the at least one fixation part (244, 242) is configured to connect to an external structure (21), wherein the at least one fixation part (244, 242) comprises a first fixation part (244) and a second fixation part (242), wherein an inner surface of the first fixation part (244) is located adjacent to an outer surface of the medium or high voltage sensor unit (20), wherein the inner surface of the first fixation part is in contact with the outer surface of the medium or high voltage sensor unit, wherein the outer surface of the medium or high voltage sensor unit (20) is cylindrically shaped (1) or conically shaped; and wherein the second fixation part (242) is connected to the first fixation part (244), (Fig. 1 – 5, [0097], [0085], [0103], [0106], [0107], [0108], [0115], [0116]). As to claim 16, Stollwerck discloses a voltage indication device comprising connecting a primary connection (260, Fig. 2) to a first terminal (200) of a medium or high voltage sensor unit (20); connecting a cable connection (360) to a second terminal (240) of the medium or high voltage sensor unit; locating at least one fixation part (244) at a base end (460, 241) of the medium or high voltage sensor unit (20); and wherein the at least one fixation part (244, 242) is configured to connect to an external structure (21), wherein the at least one fixation part (244, 242) comprises a first fixation part (244) and a second fixation part (242), and the method further comprises: locating an inner surface of the first fixation part (244) adjacent to an outer surface of the medium or high voltage sensor unit, wherein the outer surface of the medium or high voltage sensor unit (20) is cylindrically shaped or conically shaped connecting the second fixation part to the first fixation part (244); and contacting the inner surface of the first fixation part (244) with the outer surface of the medium or high voltage sensor unit (20), (Fig. 1 – 5, [0097], [0085], [0103], [0106], [0107], [0108], [0115], [0116]). As to claim 17, Stollwerck discloses a voltage indication device comprising connecting a primary connection (260, Fig. 2) to a first terminal (200) of a medium or high voltage sensor unit (20); connecting a cable connection (360) to a second terminal of the medium or high voltage sensor unit (20); filling the remaining bottom part of silicone rubber sleeve with thermoplastic or thermoset material [0042, The entire body may be elastically expandable and/or elastically compressible. It may be made from, or comprise, a polymeric material, such as silicone, or EPDM rubber. It may be made from, or comprise, a thermoplastic elastomer. Such polymeric materials may provide elastic expandability and/or compressibility. An elastic body (i.e. an elastically expandable or elastically compressible body) may facilitate resilient support for the voltage detector.], [0103, The body 240 consists of an electrically conductive polymeric material, namely electrically conductive EPDM rubber. ]., thus forming at least portion of one fixation part at a base end (460, 241) of the medium or high voltage sensor unit (20); and wherein the at least one fixation part is configured to connect to an external structure (21), wherein the at least one fixation part (244, 242) comprises a first fixation part (244) and a second fixation part (242), and the method further comprises: locating an inner surface of the first fixation part (244) adjacent to an outer surface of the medium or high voltage sensor unit (20), wherein the outer surface of the medium or high voltage sensor unit (20) is cylindrically shaped or conically shaped connecting the second fixation part (242) to the first fixation part (244); and contacting the inner surface of the first fixation part (244) with the outer surface of the medium or high voltage sensor unit (20) (Fig. 1 – 5, [0097], [0085], [0103], [0106], [0107], [0108], [0115], [0116]). Response to Arguments Applicant's arguments filed 03/16/2026 have been fully considered but they are not persuasive. Applicant’s argument that “Stollwerck does not disclose at least the inner surface of the first fixation part is in contact with the outer surface of the medium or high voltage sensor unit. The Examiner equates the voltage indication device 2 as the claimed a medium or high voltage sensing unit. See Office Action page 3 and 4. The Examiner further equates that the peripheral body portion 244 as the first fixation part. See Office Action page 3. As shown in the FIGS. 3 to 5, the peripheral body portion 244 is a part of the voltage indication device 1. The voltage indication device 2 is described as a second embodiments, nevertheless, the peripheral body portion 244 is not in contact with the outer surface of the voltage indication device 1 or 2 because the peripheral body portion 244 is formed as a portion of the voltage indication device.”. Examiner respectfully disagrees. [0103] discloses (242) as a central base body and a peripheral body portion (244). Examiner is treating element 242 as a first fixation part and element 244 as a second fixation part. [0106] discloses that peripheral body portion 244 (first fixation part) can be radially expanded when being pushed over the connector end 130 of plug 20 (inner surface of the first fixation part located adjacent to an outer surface of the medium or high voltage sensor unit). Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to REENA AURORA whose telephone number is (571)272-2263. The examiner can normally be reached M-F: 8:00AM-5:00PM. 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, Lee Rodak can be reached at 5712705628. 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. /REENA AURORA/Primary Examiner, Art Unit 2858
Read full office action

Prosecution Timeline

May 22, 2024
Application Filed
Dec 12, 2025
Non-Final Rejection — §102, §112
Mar 16, 2026
Response Filed
Apr 04, 2026
Final Rejection — §102, §112 (current)

Precedent Cases

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
87%
Grant Probability
73%
With Interview (-14.1%)
2y 8m
Median Time to Grant
Moderate
PTA Risk
Based on 1161 resolved cases by this examiner. Grant probability derived from career allow rate.

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