Prosecution Insights
Last updated: April 19, 2026
Application No. 17/743,176

ELECTRODE AND ELECTROCHEMICAL DEVICE

Final Rejection §103
Filed
May 12, 2022
Examiner
ROSENBAUM, AMANDA R
Art Unit
1752
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Daikin Industries Ltd.
OA Round
2 (Final)
60%
Grant Probability
Moderate
3-4
OA Rounds
2y 11m
To Grant
70%
With Interview

Examiner Intelligence

Grants 60% of resolved cases
60%
Career Allow Rate
98 granted / 164 resolved
-5.2% vs TC avg
Moderate +10% lift
Without
With
+10.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
44 currently pending
Career history
208
Total Applications
across all art units

Statute-Specific Performance

§101
1.5%
-38.5% vs TC avg
§103
57.4%
+17.4% vs TC avg
§102
14.1%
-25.9% vs TC avg
§112
21.2%
-18.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 164 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 Amendments In response to the amendments filed 08/11/2025: Claims 1-16 are pending in the current application. Claim 1 has been amended. Claim Rejections - 35 USC § 103 The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Claims 1-16 are rejected under 35 U.S.C. 103 as being unpatentable over Hirose et al. (US 2009/0111019) in view of Mitsuhashi et al. (US 2015/0307719). Regarding claim 1, Hirose teaches an electrode comprising a fluoropolyether group-containing compound on a surface of an electrode material wherein the electrode material contains a current collector layer including a metal material such as copper (P12.35-50..87.104-105). Hirose teaching the general formula of claim 1, teaches the fluoropolyether group-containing compound should comprise a hydroxyl group or the like capable of being bound/absorbed on a surface of the active material comprising silicone or tin, wherein the perfluoropolyether comprises a silane group etc., (P89-108). The layer is added to have increased contact strength, improving chemical stability and added protection (P42-44.88-90.101-105.112-116). Mitsuhashi also teaches a fluoropolyether group-containing compound, or perfluoropolyther comprising a silane compound etc., that should comprise a hydroxyl group or the like capable of being bound comprises a silane group etc teaches the electrode used to provide water and oil repellency, antifouling and can be used as a functional layer (P3.48.243-248.467-470). The layer may be in electronic devices and bonded with a layer comprising i.e., silicon, tin, ceramics, metals etc., for surface treating coating (P3.211.216.233-248.264.268-272). Mitsuhashi teaches an article, which may comprise an electrode on a surface comprising a fluoropolyether group-containing compound, or PFPE containing silane, or surface treating agent, overlapping the claimed formula 1 (P53-62.100-110.243-247). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the instant application to use the fluoropolyether group containing compound of Mitsuhashi as the fluoropolyether group containing compound of Hirose to provide protection as a surface treatment coating. The rationale to support a conclusion that the claim would have been obvious is that a method of enhancing a particular class of devices (methods, or products) has been made part of the ordinary capabilities of one skilled in the art based upon the teaching of such improvement in other situations. One of ordinary skill in the art would have been capable of applying this known method of enhancement to a "base" device (method, or product) in the prior art and the results would have been predictable to one of ordinary skill in the art. MPEP 2143 C Wherein Mitsuhashi teaches using a base material including those taught as the base material of Hirose, and used to form a strong protective connection the resulting structure would be obvious. The simple substitution of one known element for another is likely to be obvious when predictable results are achieved. MPEP 2143 B “It is well settled that the recitation of a new intended use for an old product does not make a claim to that old product patentable.” Regarding claim 2, modified Hirose in view of Mitsuhashi teaches wherein Rf1 is a C1-16 perfluoroalkyl group (P53-57). Regarding claim 3, modified Hirose in view of Mitsuhashi teaches RF represented by the claimed formula wherein a and b are 0 and RFa is a fluorine atom (P53.58-60). Regarding claim 4, modified Hirose in view of Mitsuhashi teaches RFa is a fluorine atom (P53.58-60). Regarding claim 5, modified Hirose in view of Mitsuhashi teaches RF independently with groups of formula (f1), (f2), (f3), (f4), or (f5) (P53.58-60.199-200.229-230.363-364) Regarding claim 6, modified Hirose in view of Mitsuhashi teaches wherein RF is f1’, where the claimed d is b of Mitsuhashi between 1 and 200 (P58). Regarding claim 7, modified Hirose in view of Mitsuhashi teaches the formula with f2’ where a, b, c, and d are between 0 and 200 and have a sum between 10 and 200 (P58). Regarding claim 8, modified Hirose in view of Mitsuhashi teaches wherein α, β, γ can be 1 (P53-62.100-119). Regarding claim 9, modified Hirose in view of Mitsuhashi teaches wherein k1 is 3, and l1 and m1 are each 0, where p1 and r1 are each 0 and q1 can be 3 (P12-22.100-107). Regarding claim 10, modified Hirose in view of Mitsuhashi teaches the fluoropolyether group-containing compound comprising two or more fluoropolyether group-containing compounds (P219-230). Regarding claim 11, modified Hirose in view of Mitsuhashi teaches the article with the claimed fluoropolyether-group containing compound coated on a surface of a base material wherein the base surface of the base material may comprise an electrode (P243-247). Regarding claim 12, modified Hirose in view of Mitsuhashi teaches a fluorine-containing oil (P219-220). Regarding claim 13, modified Hirose teaches an electrochemical device comprising the electrode according to claim 1 (P101.112). Regarding claim 14, modified Hirose teaches a lithium ion secondary battery (P101.112). Regarding claim 15, modified Hirose teaches a module (P101-112). Regarding claim 16, modified Hirose teaches a lithium ion secondary battery comprising the electrode of claim 1 (P101.112) Claims 1-16 are rejected under 35 U.S.C. 103 as being unpatentable over Honda et al. (WO 2018084265 A1 wherein US20200067097A1 is used for translation). Regarding claim 1, Honda teaches an electrode comprising a fluoropolyether group-containing compound on a surface of an electrode material wherein the electrode material contains a current collector layer including a metal material (P10-11.378-379) wherein the fluoropolyether group containing compound is represented by that of Formula 1 and/or Formula 2 (P19-246.385-394) Regarding claim 2, Honda teaches wherein Rf1 is a C1-16 perfluoroalkyl group (P37-41.61-69.164). Regarding claim 3, Honda teaches RF represented by the claimed formula wherein a and b are 0 and RFa is a fluorine atom (P24-41). Regarding claim 4, Honda teaches RFa is a fluorine atom (P24-41.53.58-60). Regarding claim 5, Honda teaches RF independently with groups of formula (f1), (f2), (f3), (f4), or (f5) (P23-45) Regarding claim 6, Honda teaches wherein RF is f1’, where the claimed d is b of Mitsuhashi between 1 and 200 (P26-27). Regarding claim 7, Honda teaches the formula with f2’ where a, b, c, and d are between 0 and 200 and have a sum between 10 and 200 (P26-28). Regarding claim 8, Honda teaches wherein α, β, γ can be 1 (P86.91-106). Regarding claim 9, Honda teaches wherein k1 is 3, and l1 and m1 are each 0, where p1 and r1 are each 0 and q1 can be 3 (P12-22.50-85.99-240). Regarding claim 10, Honda teaches the fluoropolyether group-containing compound comprising two or more fluoropolyether group-containing compounds (P10-19). Regarding claim 11, Honda teaches a surface of the electrode is coated with the fluoropolyether group-containing compound (P10-16). Regarding claim 12, Honda teaches comprising a fluorine containing oil, or provided with surface lubricity (P85.90-105). Regarding claim 13, Honda teaches an electrochemical device comprising the electrode according to claim (P). Regarding claim 14, Honda teaches a lithium ion secondary battery (P290-312). Regarding claim 15, Honda teaches a module (P290-312.347.373). Regarding claim 16, Honda teaches a lithium ion secondary battery comprising the electrode of claim 1 (P290-312). Response to Arguments Applicant argues the new claim limitations overcome the previous showing of obviousness. The amendments overcome the previous rejections. New and amended grounds of rejection are above set forth. New and amended grounds of rejection are necessitated by the claim amendments. Conclusion 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 Amanda Rosenbaum whose telephone number is (571)272-8218. The examiner can normally be reached Monday-Friday 9:00 am-5 pm. 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, Nicholas A. Smith can be reached at (571) 272-8760. 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. /Amanda Rosenbaum/ Examiner, Art Unit 1752 /Helen Oi K CONLEY/ Primary Examiner, Art Unit 1752
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Prosecution Timeline

May 12, 2022
Application Filed
Apr 02, 2025
Non-Final Rejection — §103
Aug 01, 2025
Applicant Interview (Telephonic)
Aug 01, 2025
Examiner Interview Summary
Aug 11, 2025
Response Filed
Dec 06, 2025
Final Rejection — §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
60%
Grant Probability
70%
With Interview (+10.4%)
2y 11m
Median Time to Grant
Moderate
PTA Risk
Based on 164 resolved cases by this examiner. Grant probability derived from career allow rate.

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