Prosecution Insights
Last updated: May 29, 2026
Application No. 18/297,701

SEGMENTED BATTERY CELL MOUNTING PLATE FOR THERMAL RUNAWAY MITIGATION

Final Rejection §102§103
Filed
Apr 10, 2023
Examiner
MARTIN, ANGELA J
Art Unit
1727
Tech Center
1700 — Chemical & Materials Engineering
Assignee
GM Global Technology Operations LLC
OA Round
2 (Final)
67%
Grant Probability
Favorable
3-4
OA Rounds
10m
Est. Remaining
35%
With Interview

Examiner Intelligence

Grants 67% — above average
67%
Career Allowance Rate
588 granted / 872 resolved
+2.4% vs TC avg
Minimal -32% lift
Without
With
+-32.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 12m
Avg Prosecution
52 currently pending
Career history
950
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
85.3%
+45.3% vs TC avg
§102
12.7%
-27.3% vs TC avg
§112
1.0%
-39.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 872 resolved cases

Office Action

§102 §103
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 . The pending claims are claims 1-20. 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)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim(s) 1, 2, 4-10 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Benker et al., US 20230187767. Regarding claim 1, Benker et al., teaches a battery module (0008-0009) comprising: a first battery cell (0007-0009) and a neighboring second battery cell (0008-0009); a mounting plate (housing base) (0007-0010) configured to support each of the first battery cell and the second battery cell (0007-0010); and a battery module enclosure surrounded by an ambient environment and configured to house each of the first and second battery cells (0008-0009) arranged on the mounting plate (housing base) (0007-0010); wherein: the mounting plate (housing base) (0007-0010) includes a first segment configured to support the first battery cell (0018; 0049) and a second segment configured to support the second battery cell (0018; 0049); the first segment is connected to the second segment via an interface (0008) having mechanical strength lower than mechanical strength of each of the first and second segments (0014-0016; 0022); and the interface is configured to fracture (breaking point) (0008; 0044) in response to the first battery cell undergoing a thermal event (0044) and separate the first segment from the second segment to exhaust gases from the first battery cell into a space between the mounting plate (0007-0010) and the battery module enclosure to thereby transfer thermal energy from the first battery cell away from the second battery cell and control propagation of a thermal runaway in the battery module (0012-0015). Regarding claim 2, Benker et al., teaches wherein the mounting plate (housing base) (0007-0010) including each of the interface (0008; 0015-0016), the first segment, and the second segment, is defined by a continuous unitary structure (0044) constructed from a single material (0044). Regarding claim 4, Benker et al., teaches wherein the interface (0008; 0015-0016) is defined by a pre-score in the mounting plate (housing base) (0007-0010) generating a reduced material thickness (“made less wide”) (0018) in a cross-sectional view between the first and second segments (0018). Regarding claim 5, Benker et al., teaches wherein at least one of the first and second segments includes multiple individual tiles defined by corresponding pre-scores therebetween (0021; 0023; 0046). Regarding claim 6, Benker et al., teaches wherein each of the first and second segments has an interlinking shape (“joint connection” 48) (0018). Regarding claim 7, Benker et al., teaches wherein the first battery cell and the second battery cell are attached to the respective first and second segments via an adhesive (0018; 0049). Regarding claim 8, Benker et al., teaches further comprising a coolant header (0013; 0043) arranged in the battery module enclosure and configured to remove thermal energy from the first and second battery cells (0012; 0014-0015). Regarding claim 9, Benker et al., teaches wherein the coolant header includes ribbon-shape coolant channels (channel 34) (Fig. 6) configured to seat and retain the first and second battery cells (0043) (Fig. 6). Regarding claim 10, Benker et al., teaches wherein each of the first and second battery cells (battery cells 16) (Fig. 6) has one of a prismatic cell construction (0042). Thus, the claims are anticipated. 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) 11, 12, 14-20 is/are rejected under 35 U.S.C. 103 as being unpatentable over Benker et al., US 20230187767. Regarding claim 11, Benker et al., teaches motor vehicle (0008) comprising: a battery module configured to supply electrical energy to the power-source (0013; 0040; 0045), the battery module including: a first battery cell (0007-0009) and a neighboring second battery cell (0007-0009); a mounting plate (housing base) (0007-0010) configured to support each of the first battery cell and the second battery cell (0018; 0049); and a battery module enclosure (housing) (0007-0009) surrounded by an ambient environment (0008-0009) and configured to house each of the first and second battery cells (0008-0009) arranged on the mounting plate (housing base) (0006-0008); wherein: the mounting plate (housing base) (0007-0010) includes a first segment configured to support the first battery cell (0018; 0049) and a second segment configured to support the second battery cell (0018; 0049); the first segment is connected to the second segment via an interface (0008; 0014-0015) having mechanical strength lower than mechanical strength of each of the first and second segments (0014-0016; 0022); and the interface is configured to fracture (breaking point) in response to the first battery cell undergoing a thermal event and separate the first segment from the second segment (0008; 0044) to exhaust gases from the first battery cell into a space between the mounting plate and the battery module enclosure (0006-0008) to thereby transfer thermal energy from the first battery cell away from the second battery cell and control propagation of a thermal runaway in the battery module (0012-0016). Although Benker does not teach a power-source configured to generate power-source torque, Benker teaches a motor vehicle (0008; 0012), which would operate via the power source (0027-0028). Thus, it would have been obvious to employ a power source in a motor vehicle with a reasonable expectation of success. Regarding claim 12, Benker et al., teaches wherein the mounting plate, including each of the interface (0008; 0015-0016), the first segment, and the second segment, is defined by a continuous unitary structure (0044) constructed from a single material (0044). Regarding claim 14, Benker et al., teaches wherein the interface (0008; 0015-0016) is defined by a pre-score in the mounting plate (housing base) generating a reduced material thickness (“made less wide”) (0018) in a cross-sectional view between the first and second segments (0018). Regarding claim 15, Benker et al., teaches wherein at least one of the first and second segments includes multiple individual tiles defined by corresponding pre-scores therebetween (0021; 0023; 0046). Regarding claim 16, Benker et al., teaches wherein each of the first and second segments has an interlinking shape (“joint connection” 48) (0018). Regarding claim 17, Benker et al., teaches, wherein the first battery cell and the second battery cell are attached to the respective first and second segments via an adhesive (0018; 0049). Regarding claim 18, Benker et al., teaches wherein the battery module additionally includes a coolant header (0013; 0043) arranged in the battery module enclosure and configured to remove thermal energy from the first and second battery cells (0012; 0014-0015). Regarding claim 19, Benker et al., teaches wherein the coolant header includes ribbon-shape coolant channels (channel 34) (Fig. 6) configured to seat and retain the first and second battery cells (0043) (Fig. 6). Regarding claim 20, Benker et al., teaches battery module (0008-0009) comprising: a first battery cell (0007-0009) and a neighboring second battery cell (0007-0009); a mounting plate (housing base) (0007-0010) configured to support each of the first battery cell (0018; 0049) and the second battery cell (0018; 0049); and a battery module enclosure (0008-0009) surrounded by an ambient environment and configured to house each of the first and second battery cells arranged on the mounting plate (0008-0009); wherein: the mounting plate includes a first segment configured to support the first battery cell and a second segment configured to support the second battery cell (housing base) (0007-0010); the first battery cell and the second battery cell are attached to the respective first and second segments via an adhesive (0018; 0049); the first segment is connected to the second segment via an interface having mechanical strength lower than mechanical strength of each of the first and second segments (0014-0016; 0022); the interface is defined by a pre-score in the mounting plate (0021; 0023; 0046) generating a reduced material thickness in a cross-sectional view between the first and second segments (“made less wide”) (0018); and the interface is configured to fracture (breaking point) (0008; 0044) in response to the first battery cell undergoing a thermal event (0044) and separate the first segment from the second segment to exhaust gases from the first battery cell into a space between the mounting plate and the battery module enclosure (0013-0015).to thereby transfer thermal energy from the first battery cell away from the second battery cell and control propagation of a thermal runaway in the battery module (0012-0015). Claim(s) 3 and 13 is/are rejected under 35 U.S.C. 103 as being unpatentable over Benker et al., US 20230187767, in view of Hong et al., US 20230178824. Regarding claim 3, Benker et al., does not teach wherein the material of the mounting plate is a nylon-based polymer. Hong et al., teaches a battery module having an outer layer material of nylon or polyethylene terephthalate (0039). “The outer layer is provided on the other surface of the metal layer. The outer layer may be made of a heat-resistant polymer that exhibits excellent tensile strength, resistance to moisture permeation, and resistance to air permeation such that the outer layer exhibits high heat resistance and chemical resistance while protecting the electrode assembly. As an example, the outer layer may be made of nylon or polyethylene terephthalate.” (Hong, 0039) Thus, it would have been obvious to one of ordinary skill to insert the teachings of Hong into the teachings of Benker because Hong teaches the advantages of nylon in the material of the battery module. Regarding claim 13, Benker et al., does not teach wherein the material of the mounting plate is a nylon-based polymer. Hong et al., teaches a battery module having an outer layer material of nylon or polyethylene terephthalate (0039). “The outer layer is provided on the other surface of the metal layer. The outer layer may be made of a heat-resistant polymer that exhibits excellent tensile strength, resistance to moisture permeation, and resistance to air permeation such that the outer layer exhibits high heat resistance and chemical resistance while protecting the electrode assembly. As an example, the outer layer may be made of nylon or polyethylene terephthalate.” (0039) Thus, it would have been obvious to one of ordinary skill to insert the teachings of Hong into the teachings of Benker because Hong teaches the advantages of nylon in the material of the battery module. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. He et al., US 20150194712; Chu et al., US 12476293 Any inquiry concerning this communication or earlier communications from the examiner should be directed to ANGELA J MARTIN whose telephone number is (571)272-1288. The examiner can normally be reached 7am-4pm. 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, Barbara Gilliam can be reached at 571-272-1330. 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. ANGELA J. MARTIN Examiner Art Unit 1727 /ANGELA J MARTIN/Examiner, Art Unit 1727
Read full office action

Prosecution Timeline

Apr 10, 2023
Application Filed
Jan 09, 2026
Non-Final Rejection mailed — §102, §103
Feb 19, 2026
Applicant Interview (Telephonic)
Feb 23, 2026
Response Filed
Feb 27, 2026
Examiner Interview Summary
May 26, 2026
Final Rejection mailed — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12631565
Secondary Battery Having Lead Film Including Luminous Material and Method of Inspecting Defects of Secondary Battery
6y 0m to grant Granted May 19, 2026
Patent 12633534
STABLE CATHODE MATERIALS
3y 10m to grant Granted May 19, 2026
Patent 12626926
ELECTRODE WITH FLAME RETARDANT ADDITIVES AND METHOD AND SYSTEMS FOR PREPARATION AND USE
5y 0m to grant Granted May 12, 2026
Patent 12606457
Positive Electrode Active Material Precursor For Secondary Battery, Positive Electrode Active Material, Preparation Methods Thereof, And Lithium Secondary Battery Including The Positive Electrode Active Material
3y 11m to grant Granted Apr 21, 2026
Patent 12609322
BATTERY ACTIVE MATERIAL LAYER WITH CONDUCTIVE ACTIVE MATERIAL PARTICLES
10m to grant Granted Apr 21, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

3-4
Expected OA Rounds
67%
Grant Probability
35%
With Interview (-32.2%)
3y 12m (~10m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 872 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month