Prosecution Insights
Last updated: July 17, 2026
Application No. 18/484,785

OPTICAL FILM BASED BATTERY MANAGEMENT SYSTEM COMMUNICATION METHOD

Final Rejection §103
Filed
Oct 11, 2023
Examiner
SHAMEEM, ASIF ISLAM
Art Unit
2634
Tech Center
2600 — Communications
Assignee
Vitesco Technologies Usa LLC
OA Round
2 (Final)
85%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 85% — above average
85%
Career Allowance Rate
17 granted / 20 resolved
+23.0% vs TC avg
Strong +18% interview lift
Without
With
+17.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
15 currently pending
Career history
38
Total Applications
across all art units

Statute-Specific Performance

§103
76.7%
+36.7% vs TC avg
§102
3.3%
-36.7% vs TC avg
§112
16.7%
-23.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 20 resolved cases

Office Action

§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 . Information Disclosure Statement The information disclosure statement submitted on 01/07/2026 has beenconsidered by the examiner and made of record in the application file. Response to Arguments Applicant’s arguments with respect to the rejection(s) of claim(s) 1-22 under 35 U.S.C. § 103 and 35 U.S.C. § 102 have been fully considered and are persuasive. However, upon further consideration, Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Applicants’ arguments are rendered moot in view of the present Office Action. 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claim(s) 1, 6-9, 11, 14, and 18-20 are rejected under 35 U.S.C. 103 as being unpatentable over Ronne (US 10804690) in view of Bolognia (US 10712197), and further in view of Steyn (US 20140071142). Consider Claim 1, Ronne discloses an apparatus, comprising: a battery management system (Figure 1D, element 100), comprising: at least one optical pathway (Figure 1D, element 177), further comprising: a plurality of optical communication devices (Figure 1D, element 182) connected to a corresponding one of a plurality of batteries (Figure 1D, element 156 is third element of multiple batteries); each of the plurality of optical communication devices further comprising: an optical emitter operable for emitting the one (Column 17, Lines 37-40, where each transceiver includes an electro-optical transmitter and Figure 1D, where element 177 contains multiple signals); an optical sensor operable for receiving the (Column 17, Lines 37-40, where each transceiver includes an electro-optical receiver); one optical emitter of each of the plurality of optical communication devices (Figure 1D, element 182 transmits a signal) is received by the optical sensor of one of the plurality of optical communication devices (Figure 1D, element 188 receives signal); the one (Column 15, Lines 1-3, where element 148 transmits message downstream) but does not disclose a printed circuit board (PCB); wherein the optical emitter and the optical sensor are mounted to the PCB; at least one layer of transparent film, a first portion of the at least one laver of transparent film is mounted to an external surface of a first of the plurality of batteries, and a second portion of the at least one layer of transparent film is mounted to an external surface of a second of the plurality of batteries; and at least one layer of reflective film connected to the at least one layer of transparent film such that at least a portion of the at least one layer of transparent film is disposed between a portion of the at least one layer of reflective film and at least one of the plurality of optical communication devices; wherein the optical emitter of each of the plurality of optical communication devices emits the one or more of the plurality of optical signals which pass through the at least one layer of transparent film and reflects off of the at least one laver of reflective film. However, Bolognia discloses printed circuit board (PCB), wherein the optical emitter and the optical sensor are mounted to the PCB (Column 3, Lines 45-48, where emitter and sensor dies are on PCB) but does not disclose at least one layer of transparent film, a first portion of the at least one laver of transparent film is mounted to an external surface of a first of the plurality of batteries, and a second portion of the at least one layer of transparent film is mounted to an external surface of a second of the plurality of batteries; and at least one layer of reflective film connected to the at least one layer of transparent film such that at least a portion of the at least one layer of transparent film is disposed between a portion of the at least one layer of reflective film and at least one of the plurality of optical communication devices; wherein the optical emitter of each of the plurality of optical communication devices emits the one or more of the plurality of optical signals which pass through the at least one layer of transparent film and reflects off of the at least one laver of reflective film. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of applicant’s claimed invention to have incorporated the teachings of Bolognia into Ronne to reduce the overall size of the device. However, Steyn discloses at least one layer of transparent film (Figure 5 and paragraph 0082, where element 516 includes a transparent material), and at least one layer of reflective film (Figure 5, element 520) connected to the at least one layer of transparent film (Figure 5, where element 516 is on top of element 520) such that at least a portion of the at least one layer of transparent film is disposed between a portion of the at least one layer of reflective film and at least one of the plurality of optical communication devices (Figure 5, where element 516 has light source elements 518 on one side and element 520 on another); wherein the optical emitter of each of the plurality of optical communication devices (Figure 5, element 518) emits the one or more of the plurality of optical signals which pass through the at least one layer of transparent film (Figure 5, element 516) and reflects off of the at least one laver of reflective film (Figure 5, element 520). While Steyn doesn’t disclose a first portion of the at least one laver of transparent film is mounted to an external surface of a first of the plurality of batteries, and a second portion of the at least one layer of transparent film is mounted to an external surface of a second of the plurality of batteries, the batteries themselves do not provide any other function other than a surface for the film to be disposed on. It would be obvious to one of skill in the ordinary art to take the transparent layer on the structure of Steyn and implement it on a different surface (battery) and put it on a second surface (another battery) to achieve transport of signals between devices. Therefore, it would have been obvious to one of ordinary skill in the art before theeffective filing date of applicant’s claimed invention to have incorporated the teachingsof Steyn into Ronne and Bolognia to reduce signal loss with a transparent film. Consider Claim 6, Ronne discloses the apparatus of claim 1, the at least one optical pathway further comprising a plurality of optical pathways (Figure 1D, element 180 has two optical pathways coming below it) and the at least one optical communication device further comprising a plurality of optical communication devices (Figure 1D, element 180) each of the plurality of optical communication devices being part of a corresponding one of the plurality of optical pathways (Figure 180, transmitter gets one pathway and receiver gets another pathway), each of the plurality of optical pathways connected to and circumscribing a corresponding one of the plurality of batteries (Figure 1D, element 180’s pathways are contained within one battery). Therefore, it would have been obvious to one of ordinary skill in the art before theeffective filing date of applicant’s claimed invention to have incorporated the teachingsof Steyn into Ronne and Bolognia to reduce signal loss with a transparent film. Consider Claim 7, Ronne discloses the apparatus of claim 6 wherein the at least one optical communication device emits the one (Figure 1D, element 182 transmits a signal) and receives another of the one (Figure 1D, element 182 receives another signal) but fails to disclose each of the plurality of optical pathways further comprising: a layer of transparent film circumscribing one of the plurality of batteries; and a layer of reflective film connected to the layer of transparent film. However, Steyn discloses a layer of transparent film (Figure 5 and paragraph 0082, where element 516 includes a transparent material), and a layer of reflective film (Figure 5, element 520) connected to the layer of transparent film. While Steyn doesn’t disclose the layer being circumscribed one of the plurality of batteries, the transparent thin film layer is contained within the structure of Figure 5 of Steyn. Therefore, it would be obvious to one of ordinary skill in the art that the transparent layer can also be contained within another structure such as a battery. Therefore, it would have been obvious to one of ordinary skill in the art before theeffective filing date of applicant’s claimed invention to have incorporated the teachingsof Steyn into Ronne and Bolognia to reduce signal loss with a transparent film. Consider Claim 8, Ronne discloses an optical sensor operable for receiving the one (Column 17, 37-40, where each transceiver includes an electro-optical receiver) but does not disclose an optical emitter operable for emitting the one or more optical signals, such that the one or more optical signals passes through the layer of transparent film, and a printed circuit board (PCB);wherein the optical emitter and the optical sensor are mounted to the PCB. However, Bolognia a printed circuit board (PCB); wherein the optical emitter and the optical sensor are mounted to the PCB (Column 3, Lines 45-48, where emitter and sensor dies are on PCB). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of applicant’s claimed invention to have incorporated the teachings of Bolognia into Ronne to reduce the overall size of the device. However, Steyn discloses optical emitter operable for emitting the one (Figure 5, element 518 emits light), such that the one (Figure 5 and paragraph 0082, where element 518 emits light that travels through element 516 with transparent material). Therefore, it would have been obvious to one of ordinary skill in the art before theeffective filing date of applicant’s claimed invention to have incorporated the teachingsof Steyn into Ronne and Bolognia to reduce signal loss with a transparent film. Claims 9 and 19 are rejected because although neither Ronne in view of Bolognia and further in view of Steyn fail to teach a transmitter and receiver bandpass filters, official notice is taken that it is well known in the art that bandpass filters allow frequencies within a specific range while rejecting frequencies outside the range. Hence it would be obvious to equip the electro-optical transmitters(emitter) and receivers(sensor), in Ronne with bandpass filters to restrict one of more transmitted from or received by the transceivers. The motivation being to allow frequencies within a specific range while rejecting frequencies outside the range. Consider Claim 11, Ronne discloses the apparatus of claim 6, the plurality of batteries further comprising one of a (Figure 1D, where batteries are stacked in a vertical manner). Therefore, it would have been obvious to one of ordinary skill in the art before theeffective filing date of applicant’s claimed invention to have incorporated the teachingsof Steyn into Ronne and Bolognia to reduce signal loss with a transparent film. Consider Claim 14, Ronne discloses A battery management system (Figure 1D, element 100), comprising: at least one optical pathway (Figure 1D, element 177), further comprising:; at least one a plurality of optical communication device devices (Figure 1D, element 182), each of the plurality of optical communication devices connected to a corresponding one of the plurality of batteries (Figure 1D, element 156 is third element of multiple batteries), each of the plurality of at least one optical communication device devices further comprising: an optical emitter operable for emitting at least one optical signal (Column 17, Lines 37-40, where each transceiver includes an electro-optical transmitter); an optical sensor operable for receiving the at least one optical signal (Column 17, Lines 37-40, where each transceiver includes an electro-optical receiver); one (Figure 1D, element 182 transmits a signal) is received by the optical sensor of one of the plurality of optical communication devices (Figure 1D, element 188 receives signal) but does not disclose a at least one layer of transparent film, first portion mounted to an external surface of a first of a plurality of batteries, and a second portion mounted to an external surface of a second of the plurality of batteries; and at least one layer of reflective film connected to the at least one layer of transparent film, such that at least a portion of the at least one layer of transparent film is disposed between a portion of the at least one layer of reflective film and at least one of the plurality of optical communication devices, and a printed circuit board (PCB), the optical emitter and the optical sensor are mounted to the PCB; the optical emitter of each of the plurality of optical communication devices emits the one or more optical signals which pass through the at least one layer of transparent film and reflects off of the at least one layer of reflective film. However, Bolognia a printed circuit board (PCB), the optical emitter and the optical sensor are mounted to the PCB (Column 3, Lines 45-48, where emitter and sensor dies are on PCB) but does not disclose at least one layer of transparent film, a first portion mounted to an external surface of a first of a plurality of batteries, and a second portion mounted to an external surface of a second of the plurality of batteries; and at least one layer of reflective film connected to the at least one layer of transparent film, such that at least a portion of the at least one layer of transparent film is disposed between a portion of the at least one layer of reflective film and at least one of the plurality of optical communication devices, the optical emitter of each of the plurality of optical communication devices emits the one or more optical signals which pass through the at least one layer of transparent film and reflects off of the at least one layer of reflective film. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of applicant’s claimed invention to have incorporated the teachings of Bolognia into Ronne to reduce the overall size of the device. However, Steyn discloses at least one layer of transparent film (Figure 5 and paragraph 0082, where element 516 includes a transparent material),; and at least one layer of reflective film (Figure 5, element 520) connected to the at least one layer of transparent film (Figure 5, where element 516 is on top of element 520), such that at least a portion of the at least one layer of transparent film is disposed between a portion of the at least one layer of reflective film and at least one of the plurality of optical communication devices (Figure 5, where element 516 has light source elements 518 on one side and element 520 on another), the optical emitter of each of the plurality of optical communication devices (Figure 5, element 518) emits the one or more of the plurality of optical signals which pass through the at least one layer of transparent film (Figure 5, element 516) and reflects off of the at least one laver of reflective film (Figure 5, element 520). While Steyn does not disclose a first portion mounted to an external surface of a first of a plurality of batteries, and a second portion mounted to an external surface of a second of the plurality of batteries, the batteries themselves do not provide any other function other than a surface for the transparent film to be disposed on. It would be obvious to one of skill in the ordinary art to take the transparent layer on the structure of Steyn and implement it on a different surface (battery) and put it on a second surface (another battery) to achieve transport of signals between devices. Therefore, it would have been obvious to one of ordinary skill in the art before theeffective filing date of applicant’s claimed invention to have incorporated the teachingsof Steyn into Ronne and Bolognia to reduce signal loss with a transparent film. Consider Claim 18, Ronne discloses The battery management system of claim 14, the at least one optical pathway further comprising a plurality of optical pathways (Figure 1D, element 180 has two optical pathways coming below it) and the at least one optical communication device further comprising a plurality of optical communication devices (Figure 1D, element 180) each of the plurality of optical communication devices being part of a corresponding one of the plurality of optical pathways (Figure 180, transmitter gets one pathway and receiver gets another pathway), each of the plurality of optical pathways connected to and circumscribing a corresponding one of the plurality of batteries (Figure 1D, element 180’s pathways are contained within one battery). Therefore, it would have been obvious to one of ordinary skill in the art before theeffective filing date of applicant’s claimed invention to have incorporated the teachingsof Steyn into Ronne to reduce signal loss with a transparent film. Consider Claim 20, Ronne discloses the battery management system of claim 18, the plurality of batteries further comprising one of a (Figure 1D, where batteries are stacked in a vertical manner). Therefore, it would have been obvious to one of ordinary skill in the art before theeffective filing date of applicant’s claimed invention to have incorporated the teachingsof Steyn into Ronne and Bolognia to reduce signal loss with a transparent film. Claim 5, 10, and 17 are rejected under 35 U.S.C. 103 as being unpatentable over Ronne in view of Bolognia in view of Steyn and in further view of Scholtz (US 11353362). Consider Claim 5, Ronne discloses the apparatus of claim 1, the one or more of the plurality of optical signals are transmitted to a second optical communication device (Figure 1D, where element 182 transmits signals to transceiver with elements 188 and 192) but does not disclose at least one optical pathway further comprising: at least one aperture integrally formed as part of the at least one layer of reflective film; wherein the one or more of the plurality of optical signals pass through the at least one aperture. However, Scholtz discloses disclose at least one optical pathway further comprising: at least one aperture (Fig. 1C, element 124D) integrally formed as part of the at least one layer of reflective film (Figure 1C, where element 112B acts as a thin reflective film); wherein the one or more of the plurality of optical signals pass through the at least one aperture (Figure 1, element 106A is exiting out aperture). Therefore, it would be obvious to one of skill in the ordinary art to incorporate the teachings of Scholtz into Ronne, Bolognia, and Steyn to ensure that emitted signal does not reflect back into the transparent layer. Consider Claim 10, Ronne, Bolognia, and Steyn do not disclose the limitations of this claim. However, Scholtz discloses the apparatus of claim 7, further comprising: at least one aperture (Fig. 1C, element 124D) integrally formed as part of the layer of reflective film (Figure 1C, where element 112B acts as a thin reflective film); wherein the specific spectrum optical signal passes through the at least one aperture of a first of the plurality of optical pathways (Figure 1C, element 106 is entering aperture through one pathway) to a second of the plurality of optical pathways (Figure 1C, where element 106 exits aperture through a second pathway). Consider Claim 17, Ronne discloses the battery management system of claim 14, the one or more of the plurality of optical signals are transmitted to a second optical communication device (Figure 1D, where element 182 transmits signals to transceiver with elements 188 and 192) but does not disclose at least one optical pathway further comprising: at least one aperture integrally formed as part of the at least one layer of reflective film; wherein the one or more of the plurality of optical signals pass through the at least one aperture. However, Scholtz discloses disclose at least one optical pathway further comprising: at least one aperture (Fig. 1C, element 124D) integrally formed as part of the at least one layer of reflective film (Figure 1C, where element 112B acts as a thin reflective film); wherein the one or more of the plurality of optical signals pass through the at least one aperture (Figure 1, element 106A is exiting out aperture). Therefore, it would be obvious to one of skill in the ordinary art to incorporate the teachings of Scholtz into Ronne, Bolognia, and Steyn to ensure that emitted signal does not reflect back into the transparent layer. Claims 12-13 and 21-22 is rejected ejected under 35 U.S.C. 103 as being unpatentable over Ronne in view of Bolognia, Steyn, and further in view of Petrakivskyi (US 11069923). Consider Claim 12, Ronne Bolognia, and Steyn does not disclose the limitations of this claim. However, Petrakivskyi discloses the apparatus of claim 6, the plurality of batteries further comprising: a first battery pack (Figure 12, element labeled battery cell k-1) ; a second irregular battery pack (Figure 12, element labeled battery cell k-1); and an extended optical pathway which provides communication between the first irregular battery pack and the second irregular battery pack (Column 9, Lines 24-31, where adjacent transceivers on battery packs can communicate each other wirelessly). While the mention of “irregular battery pack” is not explicitly disclosed, it is obvious to anyone of ordinary skill in the art that this is a change of arrangement of the battery pack and would be obvious as a matter of design choice. Therefore, it would have been obvious to one of ordinary skill in the art before theeffective filing date of applicant’s claimed invention to have incorporated the teachingsof Petrakivskyi into Ronne, Bolognia, and Steyn to reduce the need for wires connecting battery packs. Consider Claim 13, Ronne and Bolognia do not disclose the limitations of this claim. However, Steyn discloses a layer of transparent film (Figure 5 and paragraph 0082, where element 516 includes a transparent material); and a layer of reflective film connected to the layer of transparent film ((Figure 5, element 520)). While Steyn does not disclose wherein a first portion of the layer of transparent film is mounted to an external surface of a battery which is part of the first irregular battery pack, and an external surface of a battery which is part of the second irregular battery pack, the free space between the transceivers in the battery packs in Figure 2 of Petrakivskyi act as the medium for transport of the optical signal just as the transparent layer acts a medium for transport. Therefore, one of ordinary skill in the art can modify the medium of transport of the optical signals between the battery packs in Petrakivskyi to be with a transparent layer to achieve communication of signals between battery packs. Therefore, it would have been obvious to one of ordinary skill in the art before theeffective filing date of applicant’s claimed invention to have incorporated the teachingsof Petrakivskyi into Ronne, Bolognia, and Steyn to reduce the need for wires connecting battery packs. Consider Claim 21, Ronne, Bolognia, and Steyn do not disclose the limitations of this claim. However, Petrakivskyi discloses the battery management system of claim 18, the plurality of batteries further comprising: a first battery pack (Figure 12, element labeled battery cell k-1) ; a second irregular battery pack (Figure 12, element labeled battery cell k-1); and an extended optical pathway which provides communication between the first irregular battery pack and the second irregular battery pack (Column 9, Lines 24-31, where adjacent transceivers on battery packs can communicate each other wirelessly). While the mention of “irregular battery pack” is not explicitly disclosed, it is obvious to anyone of ordinary skill in the art that this is a change of arrangement of the battery pack and would be obvious as a matter of design choice. Therefore, it would have been obvious to one of ordinary skill in the art before theeffective filing date of applicant’s claimed invention to have incorporated the teachingsof Petrakivskyi into Ronne, Bolognia, and Steyn to reduce the need for wires connecting battery packs Consider Claim 22, Ronne and Bolognia do not disclose the limitations of this claim. However, Steyn discloses a layer of transparent film (Figure 5 and paragraph 0082, where element 516 includes a transparent material); and a layer of reflective film connected to the layer of transparent film ((Figure 5, element 520)). While Steyn does not disclose wherein a first portion of the layer of transparent film is mounted to an external surface of a battery which is part of the first irregular battery pack, and an external surface of a battery which is part of the second irregular battery pack, the free space between the transceivers in the battery packs in Figure 2 of Petrakivskyi act as the medium for transport of the optical signal just as the transparent layer acts a medium for transport. Therefore, one of ordinary skill in the art can modify the medium of transport of the optical signals between the battery packs in Petrakivskyi to be with a transparent layer to achieve communication of signals between battery packs. Therefore, it would have been obvious to one of ordinary skill in the art before theeffective filing date of applicant’s claimed invention to have incorporated the teachingsof Petrakivskyi into Ronne, Bolognia, and Steyn to reduce the need for wires connecting battery packs. Conclusion 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 ASIF SHAMEEM whose telephone number is (571)272-6576. The examiner can normally be reached Monday - Friday 8:00 AM EST-5:00 PM EST. 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, KENNETH VANDERPUYE can be reached at (571) 272-3078. 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. /ASIF SHAMEEM/Examiner, Art Unit 2634 /KENNETH N VANDERPUYE/Supervisory Patent Examiner, Art Unit 2634
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Prosecution Timeline

Oct 11, 2023
Application Filed
Oct 22, 2025
Non-Final Rejection mailed — §103
Jan 20, 2026
Response Filed
May 08, 2026
Final Rejection mailed — §103
Jun 17, 2026
Interview Requested
Jul 06, 2026
Applicant Interview (Telephonic)
Jul 06, 2026
Examiner Interview Summary

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