Prosecution Insights
Last updated: August 17, 2026
Application No. 18/700,160

CYLINDRICAL BATTERY

Non-Final OA §103§112
Filed
Apr 10, 2024
Priority
Oct 20, 2021 — JP 2021-171523 +1 more
Examiner
WILLS, MONIQUE M
Art Unit
Tech Center
Assignee
Panasonic Holdings Corporation
OA Round
1 (Non-Final)
86%
Grant Probability
Favorable
1-2
OA Rounds
5m
Est. Remaining
55%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allowance Rate
1376 granted / 1604 resolved
+25.8% vs TC avg
Minimal -31% lift
Without
With
+-31.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
34 currently pending
Career history
1640
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
60.8%
+20.8% vs TC avg
§102
17.8%
-22.2% vs TC avg
§112
17.3%
-22.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1604 resolved cases

Office Action

§103 §112
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 . Foreign Priority Documents The Japanese foreign priority document(s)2021-171523, submitted under 35 U.S.C. § 119 (a)-(d), was/were been received on May 9, 2025 and placed of record in the file. Information Disclosure Statement The information disclosure statements filed April 10, 2024 has/have been received and complies with the provisions of 37 CFR 1.97, 1.98 and MPEP § 609. Accordingly, the information disclosure statement(s) is/are being considered by the examiner, and an initialed copied is attached herewith. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 2-5 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. With respect to claim 2, the term “the plurality of second grooves contact the plurality of second grooves” is of uncertain meaning rendering the claim vague and indefinite. It is unclear as to how the second grooves contact themselves. This appears to be a typo because the drawings do not illustrate this groove configuration. For the purposes of this Office Action, the limitation will be considered: “the plurality of second grooves contact the polygon at only one vertex of the polygon” as illustrated by Fig, 4B. 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) 1-5 is/are rejected under 35 U.S.C. 103 as being unpatentable over Aoki et al., JP 06333548A in view of ITO et al., JP-06140011-A (See Also attached Machine translation). With respect to claim 1, Aoki teaches a cylindrical battery (Fig. 1), comprising: an electrode assembly (lithium secondary battery; See the Abstract; Examiners Note: electrode assemblies are required for lithium, ion batteries to function); an electrolyte (lithium secondary battery; See the Abstract; Examiners Note: electrolytes are required for lithium, ion batteries to function); a bottomed cylindrical exterior housing can that houses the electrode assembly and the electrolyte (Fig. 1) PNG media_image1.png 515 677 media_image1.png Greyscale ; and a sealing assembly with which an opening of the exterior housing can is capped (12 & 15; Fig. 1), wherein a bottom of the exterior housing can includes a first groove that forms (Fig. 2). PNG media_image2.png 365 395 media_image2.png Greyscale Aoki, does not teach or suggest: a bottom of the exterior housing can includes a first groove that forms a polygon, and a plurality of second grooves that extend outward from each of a plurality of vertices of the polygon (claim 1); the plurality of second grooves contact the plurality of second grooves and the polygon at only one vertex of the polygon (claim 2); the plurality of second grooves are provided on respective extension lines of sides of the polygon connected to contacts with the polygon in a vicinity of the contacts (claim 3); the plurality of second grooves extend in a same rotation direction with respect to a center of the bottom of the exterior housing can (claim 4); finish ends of the plurality of second grooves are located on a same circumference (claim 5). However, ITO teaches that it is well known in the art to employ: a bottom of the exterior housing can includes a first groove (first groove; Fig. 7), and a plurality of second grooves that extend outward from each of a plurality of vertices (second grooves; Fig. 7; claim 1); the plurality of second grooves contact the polygon at only one vertex (second grooves; Fig. 7; claim 2); the plurality of second grooves are provided on respective extension lines of sides of the shape connected to contacts with the shape in a vicinity of the contacts (second grooves; Fig. 7; claim 3); the plurality of second grooves extend in a same rotation direction with respect to a center of the bottom of the exterior housing can (second grooves; Fig. 7; claim 4); finish ends of the plurality of second grooves are located on a same circumference (second grooves; Fig. 7; claim 5). PNG media_image3.png 365 488 media_image3.png Greyscale Aoki and ITO are analogous art from the same field of endeavor, namely fabricating explosion proof batteries with grooved vents. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to employ a bottom of the exterior housing can includes a first groove, and a plurality of second grooves that extend outward from each of a plurality of vertices of ITO, as the first and second groove configuration at the bottom of the exterior casing of Aoki, in order to further prevent an abnormal increase in internal pressure. The skilled artisan recognizes the position, size and shape of the grooves control rupture rate and efficiency. With respect to the first groove forming a polygon (claims 1-3), it would have been obvious in the cylindrical battery of Aoki in view of ITO, in order to further prevent an abnormal increase in internal pressure. The skilled artisan recognizes the position, size and shape of the grooves control rupture rate and efficiency. A change in shape is generally recognized as being within the level of ordinary skill in the art. See In re Dailey, 357 F.2d 669, 149 USPQ 47 (CCPA 1966). Lastly, a change in size is generally recognized as being within the level of ordinary skill in the art. In re Rose, 105 USPQ 237 (CCPA 1955). 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) 1-5 is/are rejected under 35 U.S.C. 103 as being unpatentable over TANIMOTO et al., JP-2004259456-A in view of ITO et al., JP-06140011-A (See Also attached Machine translation). With respect to claim 1, TANIMOTO teaches a cylindrical battery (Fig. 2), comprising: an electrode assembly (lithium cell; See the Abstract; Examiners Note: electrode assemblies are required for lithium, ion batteries to function); an electrolyte (lithium cell; See the Abstract; Examiners Note: electrolytes are required for lithium, ion batteries to function); a bottomed cylindrical exterior housing can that houses the electrode assembly and the electrolyte (Fig. 2) PNG media_image4.png 578 388 media_image4.png Greyscale ; and a sealing assembly with which an opening of the exterior housing can is capped (Fig. 1), wherein a bottom of the exterior housing can includes a first groove that forms (Fig. 2). TANIMOTO, does not teach or suggest: a bottom of the exterior housing can includes a first groove that forms a polygon, and a plurality of second grooves that extend outward from each of a plurality of vertices of the polygon (claim 1); the plurality of second grooves contact the plurality of second grooves and the polygon at only one vertex of the polygon (claim 2); the plurality of second grooves are provided on respective extension lines of sides of the polygon connected to contacts with the polygon in a vicinity of the contacts (claim 3); the plurality of second grooves extend in a same rotation direction with respect to a center of the bottom of the exterior housing can (claim 4); finish ends of the plurality of second grooves are located on a same circumference (claim 5). However, ITO teaches that it is well known in the art to employ: a bottom of the exterior housing can includes a first groove (first groove; Fig. 7), and a plurality of second grooves that extend outward from each of a plurality of vertices (second grooves; Fig. 7; claim 1); the plurality of second grooves contact the polygon at only one vertex (second grooves; Fig. 7; claim 2); the plurality of second grooves are provided on respective extension lines of sides of the shape connected to contacts with the shape in a vicinity of the contacts (second grooves; Fig. 7; claim 3); the plurality of second grooves extend in a same rotation direction with respect to a center of the bottom of the exterior housing can (second grooves; Fig. 7; claim 4); finish ends of the plurality of second grooves are located on a same circumference (second grooves; Fig. 7; claim 5). PNG media_image3.png 365 488 media_image3.png Greyscale TANIMOTO and ITO are analogous art from the same field of endeavor, namely fabricating explosion proof batteries with grooved vents. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to employ a bottom of the exterior housing can includes a first groove, and a plurality of second grooves that extend outward from each of a plurality of vertices of ITO, as the first and second groove configuration at the bottom of the exterior casing of TANIMOTO, in order to further prevent an abnormal increase in internal pressure. The skilled artisan recognizes the position, size and shape of the grooves control rupture rate and efficiency. With respect to the first groove forming a polygon (claims 1-3), it would have been obvious in the cylindrical battery of TANIMOTO in view of ITO, in order to further prevent an abnormal increase in internal pressure. The skilled artisan recognizes the position, size and shape of the grooves control rupture rate and efficiency. TANIMOTO teaches various vent shapes., See Fig. 2. A change in shape is generally recognized as being within the level of ordinary skill in the art. See In re Dailey, 357 F.2d 669, 149 USPQ 47 (CCPA 1966). Lastly, a change in size is generally recognized as being within the level of ordinary skill in the art. In re Rose, 105 USPQ 237 (CCPA 1955). 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) 1-5 is/are rejected under 35 U.S.C. 103 as being unpatentable over KOISHIKAWA et al., JP-2006338979-Ain view of ITO et al., JP-06140011-A (See Also attached Machine translation). With respect to claim 1, KOISHIKAWA teaches a cylindrical battery (Fig. 1), comprising: an electrode assembly (lithium secondary battery; See the Abstract; Examiners Note: electrode assemblies are required for lithium, ion batteries to function); an electrolyte (lithium secondary battery; See the Abstract; Examiners Note: electrolytes are required for lithium, ion batteries to function); a bottomed cylindrical exterior housing can that houses the electrode assembly and the electrolyte (Fig. 1) PNG media_image5.png 439 554 media_image5.png Greyscale Fig. 3 ; and a sealing assembly with which an opening of the exterior housing can is capped (Fig. 1), wherein a bottom of the exterior housing can includes a first groove that forms (Fig. 3 above). KOISHIKAWA, does not teach or suggest: a bottom of the exterior housing can includes a first groove that forms a polygon, and a plurality of second grooves that extend outward from each of a plurality of vertices of the polygon (claim 1); the plurality of second grooves contact the plurality of second grooves and the polygon at only one vertex of the polygon (claim 2); the plurality of second grooves are provided on respective extension lines of sides of the polygon connected to contacts with the polygon in a vicinity of the contacts (claim 3); the plurality of second grooves extend in a same rotation direction with respect to a center of the bottom of the exterior housing can (claim 4); finish ends of the plurality of second grooves are located on a same circumference (claim 5). However, ITO teaches that it is well known in the art to employ: a bottom of the exterior housing can includes a first groove (first groove; Fig. 7), and a plurality of second grooves that extend outward from each of a plurality of vertices (second grooves; Fig. 7; claim 1); the plurality of second grooves contact the polygon at only one vertex (second grooves; Fig. 7; claim 2); the plurality of second grooves are provided on respective extension lines of sides of the shape connected to contacts with the shape in a vicinity of the contacts (second grooves; Fig. 7; claim 3); the plurality of second grooves extend in a same rotation direction with respect to a center of the bottom of the exterior housing can (second grooves; Fig. 7; claim 4); finish ends of the plurality of second grooves are located on a same circumference (second grooves; Fig. 7; claim 5). PNG media_image3.png 365 488 media_image3.png Greyscale KOISHIKAWA and ITO are analogous art from the same field of endeavor, namely fabricating explosion proof batteries with grooved vents. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to employ a bottom of the exterior housing can includes a first groove, and a plurality of second grooves that extend outward from each of a plurality of vertices of ITO, as the first and second groove configuration at the bottom of the exterior casing of KOISHIKAWA, in order to further prevent an abnormal increase in internal pressure. The skilled artisan recognizes the position, size and shape of the grooves control rupture rate and efficiency. With respect to the first groove forming a polygon (claims 1-3), it would have been obvious in the cylindrical battery of KOISHIKAWA in view of ITO, in order to further prevent an abnormal increase in internal pressure. The skilled artisan recognizes the position, size and shape of the grooves control rupture rate and efficiency. KOISHIKAWA teaches various vent shapes and multiple grooves., See Fig. 3. A change in shape is generally recognized as being within the level of ordinary skill in the art. See In re Dailey, 357 F.2d 669, 149 USPQ 47 (CCPA 1966). Lastly, a change in size is generally recognized as being within the level of ordinary skill in the art. In re Rose, 105 USPQ 237 (CCPA 1955). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MONIQUE M WILLS whose telephone number is (571)272-1309. The Examiner can normally be reached on Monday-Friday from 8:30am to 5:00 pm. If attempts to reach the examiner by telephone are unsuccessful, the Examiner's supervisor, Tiffany Legette, may be reached at 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 an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://portal.uspto.gov/external/portal. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). /Monique M Wills/ Examiner, Art Unit 1722 /TIFFANY LEGETTE/Supervisory Patent Examiner, Art Unit 1723
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Prosecution Timeline

Apr 10, 2024
Application Filed
Aug 03, 2026
Non-Final Rejection mailed — §103, §112 (current)

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Prosecution Projections

1-2
Expected OA Rounds
86%
Grant Probability
55%
With Interview (-31.2%)
2y 9m (~5m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1604 resolved cases by this examiner. Grant probability derived from career allowance rate.

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