Prosecution Insights
Last updated: April 19, 2026
Application No. 18/032,587

Pouch Sealing Apparatus

Non-Final OA §103
Filed
Apr 19, 2023
Examiner
ZENG, LINGWEN R
Art Unit
1723
Tech Center
1700 — Chemical & Materials Engineering
Assignee
LG Energy Solution, Ltd.
OA Round
1 (Non-Final)
76%
Grant Probability
Favorable
1-2
OA Rounds
3y 1m
To Grant
97%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allow Rate
398 granted / 522 resolved
+11.2% vs TC avg
Strong +21% interview lift
Without
With
+21.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
22 currently pending
Career history
544
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
61.6%
+21.6% vs TC avg
§102
24.6%
-15.4% vs TC avg
§112
7.5%
-32.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 522 resolved cases

Office Action

§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. Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. Information Disclosure Statement The information disclosure statement s (IDS) were submitted on 04/19/2023, 05/20/2024 and 09/03/2025 . The submission is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. 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 1-10 are rejected under 35 U.S.C. 103 as being unpatentable over US Patent Application Publication 2015/0171461 to Akutsu et al . With respect to claim s 1 and 3 , Akutsu et al. teach a pouch sealing apparatus configured to seal a pouch for batteries, the pouch 1 including an upper pouch and a lower pouch, the pouch 1 being configured to receive an electrode assembly 2 and an electrolytic solution, the pouch sealing apparatus comprising: a mounting unit (not shown) configured to seat a pouch receiving portion thereon; a press roller 13 configured to move the electrolytic solution into the pouch receiving portion while the press roller rolls 13 from open ends of the upper pouch 1 and the lower pouch 1 toward the pouch receiving portion; and a sealing tool (not shown) configured to seal parts C of the upper pouch 1 and the lower pouch 1 to be sealed ( Akutsu et al.: Sections [0055]-[0068]; Fig. 9). Akutsu et al. do not specifically teach the press roller is configured to fuse the upper pouch and the lower pouch in contact with each other, wherein the press roller includes a heating portion ; wherein the heating portion of at least one of the upper press roller and the lower press roller is configured to heat to a temperature up to 250° C., and the upper press roller and the lower press roller are spaced apart from each other by a predetermined distance. Akutsu et al. further teach a sealing process comprising a step of joining the upper pouch 1 and the lower pouch 1 by heat fusion . It would have been obvious as of the effective filing dated of the claimed invention to have the press roller integral with a heating portion ; wherein the heating portion of at least one of the upper press roller 13A and the lower press roller 13B is configured to heat to fuse the pouch ( a temperature up to 250° C ) , and the upper press roller 13A and the lower press roller 13B are spaced apart from each other by a predetermined distance , since it has been held to be within the general skill of a worker in the art to make plural parts unitary as a matter of engineering design choice. In re Larson, 144 USPQ 347 (CCPA 1965); In re Lockart 90 USPQ 214 (CCPA 1951) . With respect to claim 2 , Akutsu et al. teach t he pouch sealing apparatus, wherein the press roller 13 comprises an upper press roller 13A and a lower press roller 13B , the upper press roller 13A and the lower press roller 13B being positioned such that the parts of the upper pouch 1 and the lower pouch 1 to be sealed are disposed therebetween ( Akutsu et al.: Sections [0055]-[0068]; Fig. 9). With respect to claim 4 , Akutsu et al. teach t he pouch sealing apparatus, wherein the upper press roller 13A is located at upper ends positioned between a pair of upper rails (not shown) , the upper rails being horizontally spaced apart from each other by a predetermined distance, the lower press roller 13B is located at upper ends positioned between a pair of lower rails (not shown) , the lower rails being horizontally spaced apart from each other by a predetermined distance, wherein the pair of upper rails and the pair of lower rails are located so as to oppose each other, wherein the upper press roller is disposed between the pair of upper rails, the upper press roller 13A being configured to roll along a direction parallel to a longitudinal dimension of the upper rails, and wherein the lower press roller 13B is disposed between the pair of lower rails, the lower press roller being configured to roll along a direction parallel to a longitudinal dimension of the lower rails ( Akutsu et al.: Sections [0055]-[0068]; Fig. 9). Akutsu et al. do not specifically show both the pair of upper rails and the pair of lower rails; however, they are for holding the roller in order to move toward the electrode assembly, in other words, it is an essential element for the apparatus. With respect to claim 5 , Akutsu et al. teach t he pouch sealing apparatus, wherein a vertical distance between the pair of upper rails and the pair of lower rails is configured to adjust a distance between the upper press roller 13A and the lower press roller 13B ( Akutsu et al.: Sections [0055]-[0068]; Fig. 9). With respect to claim 6 , Akutsu et al. do not specifically teach t he pouch sealing apparatus, wherein the predetermined distance between the pair of upper rails and the pair of lower rails is configured to be gradually reduced along a direction extending toward the electrode assembly ( Akutsu et al.: Sections [0055]-[0068]; Fig. 9). However, it would have been obvious as of the effective filing dated of the claimed invention to have the predetermined distance be configured to be gradually reduced along a direction extending toward the electrode assembly , since c hanges in size of a known element have been held to be obvious. See Gardner v. TEC Systems, Inc., 725 F.2d 1338, 220 USPQ 777 (Fed. Cir. 1984) and In re Dailey, 357 F.2d 669, 149 USPQ 47 (CCPA 1966). With respect to claim 7 , Akutsu et al. teach a pouch-shaped secondary battery manufactured using the pouch sealing apparatus, and an electrolyte ( Akutsu et al.: Sections [0055]-[0068]; Fig. 9). With respect to claim 8 , Akutsu et al. teach a pouch sealing method to seal a pouch for secondary batteries comprising an upper pouch 1 and a lower pouch 1 , the pouch being configured to receive an electrode assembly 2 and an electrolytic solution, the pouch sealing method comprising: (s1) horizontally locating the upper pouch 1 and the lower pouch 1 on a mounting unit (not shown) and disposing a gas pocket portion of the pouch between a pair of rail units (not shown) , the pair of rail units being vertically spaced apart from each other, the rail units each including a pair of rails, the rails in each pair being horizontally spaced apart from each other by a predetermined distance; (s2) bringing the upper pouch 1 of the gas pocket portion and the lower pouch 1 of the gas pocket portion into tight contact with each other while moving a pair of press rollers 13 on the pair of rail units from an end of the gas pocket portion of the pouch in a direction toward the electrode assembly 2 ; (s3) moving the pair of press rollers 13 in a direction away from the electrode assembly 2 , so as to space the pair of press rollers 13 apart from the electrode assembly 2 by a predetermined distance ( Akutsu et al.: Sections [0055]-[0068]; Fig. 9). Akutsu et al. do not specifically teach (s4) sealing the upper pouch 1 and the lower pouch 1 at a position located between the press rollers 13 and the electrode assembly 2 using a sealing unit . Akutsu et al. further teach a sealing process comprising a step of joining the upper pouch 1 and the lower pouch 1 by heat fusion . It would have been obvious as of the effective filing dated of the claimed invention to have sealing the upper pouch 1 and the lower pouch 1 at a position located between the press rollers 13 and the electrode assembly 2 using a sealing unit , since it has been held to be within the general skill of a worker in the art to make plural parts unitary as a matter of engineering design choice. In re Larson, 144 USPQ 347 (CCPA 1965); In re Lockart 90 USPQ 214 (CCPA 1951) . With respect to claim 9 , Akutsu et al. teach t he pouch sealing method, wherein a temperature of each of the press rollers 13 is increased to bring the upper pouch 1 and the lower pouch 1 of the gas pocket portions into tight contact with each other ( Akutsu et al.: Sections [0055]-[0068]; Fig. 9). With respect to claim 10 , Akutsu et al. teach t he pouch sealing method, wherein a distance between the pair of rail units is adjusted to adjust a distance between the pair of press rollers 13 ( Akutsu et al.: Sections [0055]-[0068]; Fig. 9). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to FILLIN "Examiner name" \* MERGEFORMAT LINGWEN R ZENG whose telephone number is FILLIN "Phone number" \* MERGEFORMAT (571)272-6649 . The examiner can normally be reached FILLIN "Work Schedule?" \* MERGEFORMAT 8am-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, Tiffany Legette can be reached on (571) 270-7078 . 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. /LINGWEN R ZENG/ Examiner, Art Unit 1723 DATE \* MERGEFORMAT 3/29/2026
Read full office action

Prosecution Timeline

Apr 19, 2023
Application Filed
Mar 19, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12603351
BATTERY MODULE WITH IMPROVED COOLING PERFORMANCE AND BATTERY PACK INCLUDING THE SAME
2y 5m to grant Granted Apr 14, 2026
Patent 12603397
Seam Welding Structure of Battery Can, Current Collecting Plate, and Cap and Battery Cell Using the Same
2y 5m to grant Granted Apr 14, 2026
Patent 12597683
CURRENT COLLECTOR, BATTERY CELL, BATTERY PACK, AND VEHICLE INCLUDING THE SAME
2y 5m to grant Granted Apr 07, 2026
Patent 12592449
ASSEMBLED BATTERY
2y 5m to grant Granted Mar 31, 2026
Patent 12573676
BATTERY UNIT
2y 5m to grant Granted Mar 10, 2026
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
76%
Grant Probability
97%
With Interview (+21.1%)
3y 1m
Median Time to Grant
Low
PTA Risk
Based on 522 resolved cases by this examiner. Grant probability derived from career allow rate.

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