Prosecution Insights
Last updated: October 02, 2026
Application No. 18/528,374

APPARATUS AND METHOD FOR DETECTING WAVY EDGE OF ELECTRODE SHEET

Final Rejection §103
Filed
Dec 04, 2023
Priority
Oct 08, 2021 — CN 202122412544.7 +1 more
Examiner
QUINN, DANIEL MICHAEL
Art Unit
2855
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Contemporary Amperex Technology Co., Limited
OA Round
2 (Final)
70%
Grant Probability
Favorable
3-4
OA Rounds
3m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 70% — above average
70%
Career Allowance Rate
19 granted / 27 resolved
+2.4% vs TC avg
Strong +35% interview lift
Without
With
+34.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
23 currently pending
Career history
55
Total Applications
across all art units

Statute-Specific Performance

§101
1.0%
-39.0% vs TC avg
§103
46.6%
+6.6% vs TC avg
§102
26.9%
-13.1% vs TC avg
§112
24.0%
-16.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 27 resolved cases

Office Action

§103
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 . Response to Arguments Applicant’s arguments, see "Remarks", pages 10-12, filed July 1, 2026, with respect to the rejections of claims 1-20 have been fully considered and are persuasive. The rejection(s) of April 10, 2026 has been withdrawn. Applicant's arguments, page 12, with respect to newly added claim 22, have been fully considered but they are not persuasive. Applicant's arguments do not comply with 37 CFR 1.111(c) because they do not clearly point out the patentable novelty which he or she thinks the claims present in view of the state of the art disclosed by the references cited or the objections made. Further, they do not show how the amendments avoid such references or objections. Rather, Applicant asserts that none of the cited prior art references teach that “the moveable assembly is movably coupled to the supporting member by a slide rail or an engagement by a gear and a rack”, to which Examiner respectfully disagrees. Examiner would draw Applicant’s attention to Kurosu (JP 6186847 B2; cited in prior PTO-892), page 9, para. 14, which describes that the displacement sensor 442 slides along rail 441, which teaches the moveable engagement recited in the claim limitations of claim 22, as recited in the below rejection. 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 text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Claim 22 is rejected under 35 U.S.C. 103 as being unpatentable over Kondo (JP 2014-78448 A; cited in prior PTO-892) in view of Kurosu. In regard to claim 22, Kondo teaches an apparatus for detecting a wavy edge of an electrode sheet [edge detector, page 2 paras. 2-3; capable of differentiating thickness of electrode sheets (page 3 paras. 1-4), and therefore capable of detecting a wavy edge], comprising: a supporting member [support member 56]; and a first detecting assembly [edge detection sensor 54], the first detecting assembly comprising a movable assembly [contact 55; page 8 para. 8 - page 9 para. 1 describe the contact moving in the vertical direction, shown in Figs. 5a-5b] and a detecting member [piezoelectric sensor 61]; wherein: the movable assembly is movably coupled to the supporting member [shown in Figs. 5a-5b], and the movable assembly is configured to move along the supporting member in a direction close to an electrode sheet, to be in contact with the electrode sheet [shown in Figs. 5a-5b, the contact 55 moves up and down based on contact with the electrode sheet; metal foil sheet 40a described as an electrode base material page 8 para. 3]; and the detecting member is fixed on the movable assembly [shown in Fig. 4], and the detecting member is configured to detect a wavy edge of the electrode sheet based on movement of the movable assembly [page 9 paras. 1-4]. Kondo is not explicit that the moveable assembly is movable coupled to the supporting member by a slide rail or an engagement by a gear and a rack. However, the use of coupling moveable assemblies using a slide rail is well-known in the art, as taught by Kurosu. Kurosu teaches a waviness detection unit [plurality of displacement sensors 442] moveably coupled to a slide rail [coupled to rails 4411 and 4412; slideable engagement of the sensor 442 on the rail 441 described at least on page 9 para. 14] affixed to a supporting structure [shown at least in Fig. 1]. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have used Kurosu’s sliding rail as Kondo’s moveable coupling in order to better position a displacement sensor, as taught by Kondo [page 9 para. 14]. Allowable Subject Matter Claims 1-3 and 6-21 are allowed. The following is a statement of reasons for the indication of allowable subject matter: In regard to independent claims 1 and 12, Kondo teaches an apparatus for detecting a wavy edge of an electrode sheet [edge detector, page 2 paras. 2-3; capable of differentiating thickness of electrode sheets (page 3 paras. 1-4), and therefore capable of detecting a wavy edge], comprising: a supporting member [support member 56]; and a first detecting assembly [edge detection sensor 54], the first detecting assembly comprising a movable assembly [contact 55; page 8 para. 8 - page 9 para. 1 describe the contact moving in the vertical direction, shown in Figs. 5a-5b] and a detecting member [piezoelectric sensor 61]; wherein the movable assembly is movably coupled to the supporting member [shown in Figs. 5a-5b], and the movable assembly is configured to move along the supporting member in a direction close to an electrode sheet, to be in contact with the electrode sheet [shown in Figs. 5a-5b, the contact 55 moves up and down based on contact with the electrode sheet; metal foil sheet 40a described as an electrode base material page 8 para. 3]; and the detecting member is fixed on the movable assembly [shown in Fig. 4], and the detecting member is configured to detect an edge of the electrode sheet based on movement of the movable assembly [page 9 paras. 1-4]; a power mechanism [voltage sensor 61], movably coupled to the supporting member [shown in Figs. 5a-5b; electrode 59 of voltage sensor moves vertically in response to compression/displacement of the contact 55]; wherein the detecting member further comprises a displacement detecting member coupled to the power mechanism [piezoelectric element 58 measures the displacement of the contact 55 by the force applied to the sensor, at least in part electrode 59; page 8 para. 9 - page 9 para. 1], and the displacement detecting member is configured to detect displacement of the movable assembly [page 8 para. 9 - page 9 para. 1]; and the supporting member is provided with a measuring tool [electrode 60], the measuring tool is opposite to the displacement detecting member in terms of position [electrode 60 is on the opposite side of the piezoelectric element 58 compared to electrode 59], and the displacement detecting member reads the displacement of the movable assembly through the measuring tool [page 8 para. 9 - page 9 para. 1]. Although Kondo teaches that an apparatus capable of detecting a wavy edge of an electrode sheet, Kondo is not explicit that the apparatus does detect said wavy edge. However, gauging waviness of a belt or sheet with a sensor is a well-known engineering practice in the art, as exemplified by Kurosu. Kurosu teaches a waviness detection unit [plurality of displacement sensors 442] with a control unit for detecting the waviness of a belt stretched between two rollers [abstract, page 2 para. 6; waviness detected by comparing displacement sensor output over time, page 14 paras. 4-12]. Yet, neither Kondo nor Kurosu teach that the measuring tool comprises an optical ruler or a scale mark such that the measuring tool is opposite to the position of the displacement detecting member, nor do they provide the rationale to do so. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Castillo (US 20080019751 A1) teaches an apparatus for optically sensing the curl of an edge of an electrode sheet, and Ichizawa (US 20110273557 A1) for optically measuring the edge of an electrode sheet. Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to DANIEL QUINN whose telephone number is (571)272-2690. The examiner can normally be reached T-R 07:00-19:00, F 07:00-11:00. 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, JOHN BREENE can be reached at (571)272-4107. 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. /DANIEL M QUINN/Examiner, Art Unit 2855 /NATALIE HULS/Primary Examiner, Art Unit 2855
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Prosecution Timeline

Dec 04, 2023
Application Filed
Apr 10, 2026
Non-Final Rejection mailed — §103
Jul 01, 2026
Response Filed
Sep 15, 2026
Final Rejection mailed — §103 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
70%
Grant Probability
99%
With Interview (+34.7%)
3y 0m (~3m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 27 resolved cases by this examiner. Grant probability derived from career allowance rate.

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