Prosecution Insights
Last updated: April 19, 2026
Application No. 18/203,261

Apparatus and Method of Folding Pouch Case of Battery Cell

Non-Final OA §103
Filed
May 30, 2023
Examiner
RHEE, JANE J
Art Unit
1724
Tech Center
1700 — Chemical & Materials Engineering
Assignee
SK On Co. Ltd.
OA Round
1 (Non-Final)
86%
Grant Probability
Favorable
1-2
OA Rounds
2y 10m
To Grant
98%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allow Rate
954 granted / 1110 resolved
+20.9% vs TC avg
Moderate +12% lift
Without
With
+12.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
32 currently pending
Career history
1142
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
43.0%
+3.0% vs TC avg
§102
41.5%
+1.5% vs TC avg
§112
3.7%
-36.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1110 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 . 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. 1. Claim(s) 1-7 is/are rejected under 35 U.S.C. 103 as being unpatentable over Otohata et al. (US20140182119) in view of Jeong (KR20170033588). As to claim 1, Otohata et al. discloses wherein the secondary battery (figure 8 number 5) including a pouch body (6’) in which an electrode assembly is accommodated and a pouch wing extending from the pouch body, a pre-folding line (6) recessed at a predetermined depth along a length direction of the pouch wing is formed on the pouch wing. Otohata et al. fail to disclose a folding unit for folding a pouch wing of a secondary battery wherein the folding unit is configured to fold the pouch wing on the basis of the pre-folding line. Jeong teaches a folding unit for folding a pouch wing of a secondary battery wherein the folding unit is configured to fold the pouch wing on the basis of the pre-folding line for the purpose of providing a pouch folding device for a secondary battery with improved safety (figure 4, paragraph 0013-0015). Therefore, it would have been obvious to one having ordinary skill in the art at the time applicant's invention was made to provide Otohata et al. with a folding unit for folding a pouch wing of a secondary battery wherein the folding unit is configured to fold the pouch wing on the basis of the pre-folding line for the purpose of providing a pouch folding device for a secondary battery with improved safety (figure 4, paragraph 0013-0015). As to claim 2, Otohata et al. fail to disclose wherein the folding unit includes a plurality of unit rollers arranged along the path through which the secondary battery is transported, and at least one of the plurality of unit rollers includes an upper roller and a lower roller, and an accommodating groove in which a portion protruding downward of the pre-folding line is formed in the lower roller. Jeong teaches wherein the folding unit includes a plurality of unit rollers arranged along the path through which the secondary battery is transported, and at least one of the plurality of unit rollers includes an upper roller and a lower roller, and an accommodating groove in which a portion protruding downward of the pre-folding line is formed in the lower roller for the purpose of providing a pouch folding device for a secondary battery with improved safety (figure 4, paragraph 0013-0015). Therefore, it would have been obvious to one having ordinary skill in the art at the time applicant's invention was made to provide Otohata et al. with wherein the folding unit includes a plurality of unit rollers arranged along the path through which the secondary battery is transported, and at least one of the plurality of unit rollers includes an upper roller and a lower roller, and an accommodating groove in which a portion protruding downward of the pre-folding line is formed in the lower roller for the purpose of providing a pouch folding device for a secondary battery with improved safety (figure 4, paragraph 0013-0015). Otohata et al. fail to disclose wherein the lower roller is formed so that an outer side of the accommodating groove has a predetermined angle with respect to a horizontal direction. Jeong teaches wherein the lower roller is formed so that an outer side of the accommodating groove has a predetermined angle with respect to a horizontal direction (paragraph 0014-0018) for the purpose of providing a pouch folding device for a secondary battery with improved safety (figure 4, paragraph 0013-0015). Therefore, it would have been obvious to one having ordinary skill in the art at the time applicant's invention was made to provide Otohata et al. with wherein the lower roller is formed so that an outer side of the accommodating groove has a predetermined angle with respect to a horizontal direction (paragraph 0014-0018) for the purpose of providing a pouch folding device for a secondary battery with improved safety (figure 4, paragraph 0013-0015). As to claim 4, Otohata et al. discloses wherein a first pre- folding line and second pre-folding line are formed on the pouch wing (figure 17 number 36a,36b). As to claim 5, Otohata et al. fail to disclose wherein the folding unit includes a first folding unit folding the pouch wing on which the first pre-folding line is formed, by a second folding unit folding the pouch wing folded by 90 by 180 and a third folding unit additionally folding the pouch wing folded by 180 by and the first folding unit folds the pouch wing by 90 on the basis of the first pre-folding line, the second folding unit folds the pouch wing folded by 90 on the basis of the first pre-folding line by 180 and the third folding unit additionally folds the pouch wing folded by 180 by 90 on the basis of the second folding line. Jeong teaches wherein the folding unit includes a first folding unit folding the pouch wing on which the first pre-folding line is formed, by a second folding unit folding the pouch wing folded by 90 by 180 and a third folding unit additionally folding the pouch wing folded by 180 by and the first folding unit folds the pouch wing by 90 on the basis of the first pre-folding line, the second folding unit folds the pouch wing folded by 90 on the basis of the first pre-folding line by 180 and the third folding unit additionally folds the pouch wing folded by 180 by 90 on the basis of the second folding line (paragraph 0014) for the purpose of providing a pouch folding device for a secondary battery with improved safety (figure 4, paragraph 0013-0015). Therefore, it would have been obvious to one having ordinary skill in the art at the time applicant's invention was made to provide Otohata et al. with wherein the folding unit includes a first folding unit folding the pouch wing on which the first pre-folding line is formed, by a second folding unit folding the pouch wing folded by 90 by 180 and a third folding unit additionally folding the pouch wing folded by 180 by and the first folding unit folds the pouch wing by 90 on the basis of the first pre-folding line, the second folding unit folds the pouch wing folded by 90 on the basis of the first pre-folding line by 180 and the third folding unit additionally folds the pouch wing folded by 180 by 90 on the basis of the second folding line for the purpose of providing a pouch folding device for a secondary battery with improved safety (figure 4, paragraph 0013-0015). As to claim 6, Otohata et al. fail to disclose wherein the first folding unit includes a plurality of first unit rollers arranged along the path through which the secondary battery is transported, each of the plurality of first unit rollers including an upper roller and a lower roller, the third folding unit includes a plurality of third unit rollers arranged along the path through which the secondary battery is transported, each of the plurality of third unit rollers including an upper roller and a lower roller, and an accommodating groove in which a portion protruding downward of the first pre-folding line is formed in the lower roller of the first unit roller, and an accommodating groove in which a portion protruding downward of the second pre- folding lie is formed in the lower roller of the third unit roller. Jeong teaches wherein the first folding unit includes a plurality of first unit rollers arranged along the path through which the secondary battery is transported, each of the plurality of first unit rollers including an upper roller and a lower roller, the third folding unit includes a plurality of third unit rollers arranged along the path through which the secondary battery is transported, each of the plurality of third unit rollers including an upper roller and a lower roller, and an accommodating groove in which a portion protruding downward of the first pre-folding line is formed in the lower roller of the first unit roller, and an accommodating groove in which a portion protruding downward of the second pre- folding lie is formed in the lower roller of the third unit roller (figure 4) for the purpose of providing a pouch folding device for a secondary battery with improved safety (figure 4, paragraph 0013-0015). . As to claim 7, Otohata et al. fail to disclose wherein the first folding unit includes a plurality of unit rollers arranged along the path through which the secondary battery is transported, each of the plurality of first unit rollers including an upper roller and a lower roller, and wherein two accommodating grooves are formed in the lower roller of the first unit roller, and each accommodating groove accommodates a portion protruding downward each of the first pre-folding line and the second pre-folding line. Jeong teaches wherein the first folding unit includes a plurality of unit rollers arranged along the path through which the secondary battery is transported, each of the plurality of first unit rollers including an upper roller and a lower roller, and wherein two accommodating grooves are formed in the lower roller of the first unit roller, and each accommodating groove accommodates a portion protruding downward each of the first pre-folding line and the second pre-folding line (figure 4) for the purpose of providing a pouch folding device for a secondary battery with improved safety (figure 4, paragraph 0013-0015). Therefore, it would have been obvious to one having ordinary skill in the art at the time applicant's invention was made to Otohawa et al. with wherein the first folding unit includes a plurality of unit rollers arranged along the path through which the secondary battery is transported, each of the plurality of first unit rollers including an upper roller and a lower roller, and wherein two accommodating grooves are formed in the lower roller of the first unit roller, and each accommodating groove accommodates a portion protruding downward each of the first pre-folding line and the second pre-folding line (figure 4) for the purpose of providing a pouch folding device for a secondary battery with improved safety (figure 4, paragraph 0013-0015). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to JANE J RHEE whose telephone number is (571)272-1499. The examiner can normally be reached Monday-Friday (10-6:30). 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, Miriam Stagg can be reached at 571-270-5256. 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. /JANE J RHEE/ Primary Examiner, Art Unit 1724
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Prosecution Timeline

May 30, 2023
Application Filed
Feb 04, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12603392
SQUARE SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF
2y 5m to grant Granted Apr 14, 2026
Patent 12597634
PRODUCING METHOD FOR LITHIUM-ION SECONDARY BATTERY
2y 5m to grant Granted Apr 07, 2026
Patent 12592437
SQUARE TYPE BATTERY AND MANUFACTURING METHOD OF SQUARE TYPE BATTERY
2y 5m to grant Granted Mar 31, 2026
Patent 12562419
BUTTON-TYPE SECONDARY BATTERY
2y 5m to grant Granted Feb 24, 2026
Patent 12548826
EXTERIOR MATERIAL FOR POWER STORAGE DEVICE, METHOD FOR MANUFACTURING SAME, AND POWER STORAGE DEVICE
2y 5m to grant Granted Feb 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
86%
Grant Probability
98%
With Interview (+12.4%)
2y 10m
Median Time to Grant
Low
PTA Risk
Based on 1110 resolved cases by this examiner. Grant probability derived from career allow rate.

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