Prosecution Insights
Last updated: July 17, 2026
Application No. 18/686,728

BATTERY VENT PROTECTOR

Non-Final OA §102
Filed
Feb 26, 2024
Priority
Sep 02, 2021 — provisional 63/240,110 +1 more
Examiner
LEE, JAMES
Art Unit
Tech Center
Assignee
EaglePicher Technologies LLC
OA Round
1 (Non-Final)
74%
Grant Probability
Favorable
1-2
OA Rounds
9m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allowance Rate
537 granted / 723 resolved
+14.3% vs TC avg
Strong +20% interview lift
Without
With
+19.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
31 currently pending
Career history
759
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
72.5%
+32.5% vs TC avg
§102
9.4%
-30.6% vs TC avg
§112
8.7%
-31.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 723 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 . 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. Claim(s) 1-20 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Riley et al. (US 2020/0112009A1). Regarding claim 1, Riley discloses a venting system for a battery (see Title, Abstract, [0021]-[0022], Fig. 1-2), comprising: a venting material disposed proximate to each cell of a plurality of electrochemical cells of the battery, the venting material configured to allow materials ejected due to a thermal event to flow through the venting material (filter 12 [0021]); and a venting device disposed in a fixed position relative to the venting material and the plurality of cells, the venting device including a structure for each cell, the structure including a wall surrounding an area corresponding to a respective cell and extending away from the respective cell, the wall defining a venting path configured to direct ejected materials away from the respective cell (outlet(s) 14 [0021]-[0022]). Regarding claim 2, Riley discloses all of the claim limitations as set forth above. Riley further discloses each structure extends away from the plurality of electrochemical cells to a vent area (outlet(s) 14 [0021]-[0022], Fig. 1-2). Regarding claim 3, Riley discloses all of the claim limitations as set forth above. Riley further discloses the venting material is electrically insulating and resistant to temperatures associated with the thermal event (filter materials including alumina, flame resistant composite foams, pumice, zeolites, fiber glass, and/or any other appropriate material [0015] which include insulating, high temperature resistant materials). Regarding claim 4, Riley discloses all of the claim limitations as set forth above. Riley further discloses the venting material is configured to open due to the ejected materials to provide the venting path (gas vented through outlet(s) 14 [0021]-[0022]). Regarding claim 5, Riley discloses all of the claim limitations as set forth above. Riley further discloses the venting material is permeable to the ejected materials (filter [0021]-[0022]). Regarding claim 6, Riley discloses all of the claim limitations as set forth above. Riley further discloses the venting device is configured to secure the venting material at the fixed position (a filter 12 which may also be disposed between the one or more electrochemical cells and the one or more vents [0021], Fig. 1-2). Regarding claim 7, Riley discloses all of the claim limitations as set forth above. Riley further discloses the venting device is configured to clamp the venting material to a housing of the plurality of electrochemical cells by a clamping mechanism (a filter 12 which may also be disposed between the one or more electrochemical cells and the one or more vents [0021], Fig. 1-2 show a flange portion of the enclosure forming a clamping mechanism). Regarding claim 8, Riley discloses all of the claim limitations as set forth above. Riley further discloses the venting device is an integral component defining the structure for each cell ([0021]-[0022], Fig.1-2 show outlet(s) 14 being integral with venting structure). Regarding claim 9, Riley discloses a battery (electrochemical cell [0021]-[0023], Fig. 1-2), comprising: a plurality of electrochemical cells disposed in a cell housing (cells 8 [0021]); and a venting system including: a venting material disposed proximate to each cell of a plurality of electrochemical cells of the battery, the venting material configured to allow materials ejected due to a thermal event to flow through the venting material (filter 12 [0021]); and a venting device disposed in a fixed position relative to the venting material and the plurality of cells, the venting device including a structure for each cell, the structure including a wall surrounding an area corresponding to a respective cell and extending away from the respective cell, the wall defining a venting path configured to direct ejected materials away from the respective cell (outlet(s) 14 [0021]-[0022], Fig. 1-2 show outlet(s) 14 one-to-one correspondence with cells 8). Regarding claim 10, Riley discloses all of the claim limitations as set forth above. Riley further discloses each structure extends away from the plurality of electrochemical cells to a vent area (outlet(s) 14 [0021]-[0022], Fig. 1-2). Regarding claim 11, Riley discloses all of the claim limitations as set forth above. Riley further discloses the venting material is electrically insulating and resistant to temperatures associated with the thermal event (filter materials including alumina, flame resistant composite foams, pumice, zeolites, fiber glass, and/or any other appropriate material [0015] which include insulating, high temperature resistant materials). Regarding claim 12, Riley discloses all of the claim limitations as set forth above. Riley further discloses the venting material is configured to open due to the ejected materials to provide the venting path (gas vented through outlet(s) 14 [0021]-[0022]). Regarding claim 13, Riley discloses all of the claim limitations as set forth above. Riley further discloses the venting material is permeable to the ejected materials (filter [0021]-[0022]). Regarding claim 14, Riley discloses all of the claim limitations as set forth above. Riley further discloses the venting path and the structure allows the ejected materials to be directed away from the respective cells without damaging other cells in the plurality of electrochemical cells (filter [0021]-[0022]). Regarding claim 15, Riley discloses all of the claim limitations as set forth above. Riley further discloses the venting device is configured to clamp the venting material to the cell housing by a clamping mechanism, the clamping mechanism securing the venting material in the fixed position (a filter 12 which may also be disposed between the one or more electrochemical cells and the one or more vents [0021], Fig. 1-2 show a flange portion of the enclosure forming a clamping mechanism). Regarding claim 16, Riley discloses all of the claim limitations as set forth above. Riley further discloses the venting device is an integral component defining the structure for each cell ([0021]-[0022], Fig.1-2 show outlet(s) 14 being integral with venting structure). Regarding claim 17, Riley discloses a method comprising: operating a battery that includes a plurality of electrochemical cells disposed in a cell housing, the battery including a venting system, the venting system including: a venting material disposed proximate to each cell of a plurality of electrochemical cells of the battery (filter 12 [0021]); and a venting device disposed in a fixed position relative to the venting material and the plurality of cells, the venting device including a structure for each cell, the structure including a wall surrounding an area corresponding to a respective cell and extending away from the respective cell, the wall defining a venting path configured to direct ejected materials away from the respective cell (outlet(s) 14 [0021]-[0022], Fig. 1-2 show outlet(s) 14 one-to-one correspondence with cells 8); and based on a thermal event occurring in an affected cell, allowing materials ejected from the affected cell to flow through the venting material and directing the ejected materials away from the affected cell along the venting path by the wall associated with the affected cell (gas vented through outlet(s) 14 [0021]-[0022]). Regarding claim 18, Riley discloses all of the claim limitations as set forth above. Riley further discloses the structure directs the ejected materials to a vent area (outlet(s) 14 [0021]-[0022], Fig. 1-2). Regarding claim 19, Riley discloses all of the claim limitations as set forth above. Riley further discloses the venting material opens due to the ejected materials to provide the venting path (gas vented through outlet(s) 14 [0021]-[0022]). Regarding claim 20, Riley discloses all of the claim limitations as set forth above. Riley further discloses the ejected materials are directed away from the respective cells without damaging other cells in the plurality of electrochemical cells (gas vented through outlet(s) 14 [0021]-[0022]). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to JAMES LEE whose telephone number is (571)270-7937. The examiner can normally be reached M-F: 9AM - 5PM. 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, NICOLE BUIE-HATCHER can be reached at (571)270-3879. 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. /James Lee/Primary Examiner, Art Unit 1725 6/17/2026
Read full office action

Prosecution Timeline

Feb 26, 2024
Application Filed
Jun 23, 2026
Non-Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12676311
Electrode Assemblies Incorporating Ion Exchange Materials
5y 9m to grant Granted Jul 07, 2026
Patent 12658447
STABLE METAL ANODES AND BATTERIES UTILIZING THE SAME
5y 2m to grant Granted Jun 16, 2026
Patent 12658477
ELECTROLYTE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME
3y 6m to grant Granted Jun 16, 2026
Patent 12651756
Fuel Cell
3y 8m to grant Granted Jun 09, 2026
Patent 12646805
Non-Aqueous Electrolyte Secondary Battery
3y 2m to grant Granted Jun 02, 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

1-2
Expected OA Rounds
74%
Grant Probability
94%
With Interview (+19.5%)
3y 1m (~9m remaining)
Median Time to Grant
Low
PTA Risk
Based on 723 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