Prosecution Insights
Last updated: April 19, 2026
Application No. 17/575,804

SURFACE TREATMENT AGENT

Non-Final OA §103
Filed
Jan 14, 2022
Examiner
QIAO, HUIHONG
Art Unit
1763
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Daikin Industries Ltd.
OA Round
3 (Non-Final)
71%
Grant Probability
Favorable
3-4
OA Rounds
3y 3m
To Grant
94%
With Interview

Examiner Intelligence

Grants 71% — above average
71%
Career Allow Rate
77 granted / 109 resolved
+5.6% vs TC avg
Strong +24% interview lift
Without
With
+23.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
44 currently pending
Career history
153
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
52.0%
+12.0% vs TC avg
§102
17.0%
-23.0% vs TC avg
§112
18.0%
-22.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 109 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 . This This communication responds to the amended claim set filed 12/01/2025. Claims 1-12 are current pending. The 35 USC 103 rejections dated 08/01/2025 are MAINTAINED. The text of those sections of Title 35, U.S. Code not included in this action can be found in a previous Office Action. Continued Examination A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 12/01/2025 has been entered. Claim Rejections - 35 USC§ 103 Claims 1-6 and 8-12 are rejected under 35 U.S.C. 103 as being unpatentable over Satoh et al. (US7,125,926 B2). The rejection dated 08/01/2025 at paragraph 7 is maintained. Regarding the newly added limitation “a molar ratio of the metal compound to the fluorine-containing silane compound is from 0.1 to 5,” Satoh teaches: The amount of the perfluoro group-containing fluorocompound (B) may be from 0.1 to 300 parts by weight, based on 100 parts by weight of the hydrolyzable metal alkoxide (A) (11:14-17). Following Applicant’s calculation on Examples 1, 2, 4, 5 of Satoh, Satoh teaches a range of the mol ratio of the metal compound to the fluorine-containing silane compound is from 0.98 to 2932.69 ((100/208)/(300/610) to (100/208)/(0.1/610)), overlapping the claimed 0.1 to 5. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have selected the overlapping portion of the range taught by Satoh (See MPEP 2144.05 I). Claim 7 is rejected under 35 U.S.C. 103 as being unpatentable over Satoh as applied to claim 1 above, and further in view of Yamane et al. (US2016/0040039 Al). The rejection dated 08/01/2025 at paragraph 8 is maintained. Response to Arguments Applicant's arguments filed 12/01/2025 have been fully considered but they are not persuasive. Applicant’s argument: Satoh does not teach or fairly suggested the claimed molar ratio. Examiner’s response: as the calculation above, Satoh teaches a range overlapping that of the instant claim. The teaching of prior art is not limited to the preferred embodiments. Applicant’s argument: the surface-treating agent of Satoh does not form a chemical resistance layer. Examiner’s response: the argument is not persuasive for two reasons. Reason 1: chemical resistance is not claimed. Patentability is determined by claims (MPEP 2103 I). Reason 2: Although Satoh does not explicitly teach the surface-treating agent form a chemical resistance layer, Satoh teaches the surface-treating agent comprising the claimed components in the claimed mol ratio, thus, Satoh teaches a substantially identical surface-treating agent, as such the chemical resistance is expected. “Products of identical chemical composition cannot have mutually exclusive properties.” A chemical composition and its properties are inseparable. Therefore, if the prior art teaches the identical chemical structure, the properties applicant discloses and/or claims are necessarily present (See MPEP 2112.01 II). In this case, the fluorine-containing silane compound has chemical resistance and the metal compound containing hydrolysable groups, as such the metal compound can be efficiently contained in the surface-treating agent, consequently, improving chemical resistance of the surface-treating agent. Once a reference teaching product appearing to be substantially identical is made the basis of a rejection, and the examiner presents evidence or reasoning to show inherency the burden of proof is now shifted to Applicant to show otherwise (See MPEP 2112 V). For the reasons set forth above, Applicant’s arguments are not persuasive. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to HUIHONG QIAO whose telephone number is (571)272-8315. The examiner can normally be reached 9AM - 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, Joseph Del Sole can be reached at 571-272-1130. 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. /HUIHONG QIAO/Examiner, Art Unit 1763 /CATHERINE S BRANCH/Primary Examiner, Art Unit 1763
Read full office action

Prosecution Timeline

Jan 14, 2022
Application Filed
Jan 07, 2025
Non-Final Rejection — §103
Apr 29, 2025
Response Filed
Jul 28, 2025
Final Rejection — §103
Dec 01, 2025
Request for Continued Examination
Dec 02, 2025
Response after Non-Final Action
Jan 19, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

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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
71%
Grant Probability
94%
With Interview (+23.9%)
3y 3m
Median Time to Grant
High
PTA Risk
Based on 109 resolved cases by this examiner. Grant probability derived from career allow rate.

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