Prosecution Insights
Last updated: May 29, 2026
Application No. 18/089,616

ANTI-REFLECTANCE FILM AND DISPLAY DEVICE

Final Rejection §102§103
Filed
Dec 28, 2022
Priority
Dec 13, 2022 — CN 202211601333.0
Examiner
EGWIM, KELECHI CHIDI
Art Unit
1762
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co. Ltd.
OA Round
2 (Final)
70%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
84%
With Interview

Examiner Intelligence

Grants 70% — above average
70%
Career Allowance Rate
551 granted / 789 resolved
+4.8% vs TC avg
Moderate +14% lift
Without
With
+14.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
33 currently pending
Career history
838
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
41.5%
+1.5% vs TC avg
§102
50.7%
+10.7% vs TC avg
§112
2.9%
-37.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 789 resolved cases

Office Action

§102 §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 . Election/Restrictions Applicant’s election without traverse of Group I, claims 1-11 in the reply filed on 8/26/2025 is acknowledged. Claims 12-20 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1-4, 6-9 and 11 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Hichiri et al. (WO 2019087963). In ¶ 1-200 and figures 1-3, Hichiri et al. teach a film comprising a base material substrate (layer 10 in figure 1); hard layer, consistent with the present transition layer, on one side of the substrate (layer 12 in figure 1); and an anti-reflection layer on the side of the hard coating layer way from the substrate (layer 11 in figure 1); wherein the refractive index of the hard coat layer is adjusted to be higher than the refractive index of the layer next to it. Regarding claims 2 and 3, the formula in claim 2, Hichiri et al. teach that the refractive index of the hard transition layer may be set to 1.45 to 1.58, while the refractive index of the antireflective layer is 1.20 to 1.40. When the reflective index of the antireflective layer is 1.25 and the refractive index of the hard transition layer is 1.56, it satisfies the formula n12 = n0 X n2. (see ¶ 48 and 51) Regarding claim 4, Hichiri et al. teach the film thickness of the hard transition layer to be 3 to 15µm and the reflection index is 1.45 to 1.58, the hard transition layer of Hichiri et al. can also meet the condition of claim 4. Hichiri et al. (WO 2019087963). Hichiri et al. teach wherein the transition coating layer comprises 1-10 parts of photo initiator, based on 100 % of the photopolymerized resin such as polyester acrylic resin, polyurethane acrylic resin, epoxy acrylic resin, with 10 to 50% of inorganic oxides such as silica particles, and various other additives, wherein the inorganic oxides particles is greater than or equal to 5 nm, and less than or equal to 25 nm. Thus, the requirements for rejection under 35 U.S.C. 102(a)(1) are met. 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) 5 is/are rejected under 35 U.S.C. 103 as being unpatentable over Hichiri et al. (WO 2019087963). Although Hichiri et al. do not disclose that the transition layer is from 30 to 110 µm, it would have been obvious to one having ordinary skill in the art, at the time the invention was made, to adjust the thickness of the transition layer to 30 to 110 µm as they already teach the layer to be in the micrometer range, with a reasonable expectation of success. Claim(s) 10 is/are rejected under 35 U.S.C. 103 as being unpatentable over Hichiri et al. (WO 2019087963) in view of Lou et al. (CN 104199128). Hichiri et al. differ from the claimed invention in that they do not disclose the particle size of the inorganic oxide particles to be from 5 to 25 nm. However, it is known in the art to use nano-particles in such optical multilayer hardening film comprising transparent hardening layers from solidifying resins, initiator, nanometer particles, and solvent, wherein said resin is acrylic ester, as in Lou et al. (See the Abstract) Therefore, it would have been obvious to one having ordinary skill in the art at the time the invention was made, to use nanometer particles as in Lou et al., to obtain the hardening transition layer of Hichiri et al., motivated by a reasonable expectation of success. Any inquiry concerning this communication or earlier communications from the examiner should be directed to KELECHI CHIDI EGWIM whose telephone number is (571)272-1099. The examiner can normally be reached M-Th 9-7. 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, Robert Jones can be reached at (571) 270-7733. 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. /KELECHI C EGWIM/Primary Examiner, Art Unit 1762 KCE
Read full office action

Prosecution Timeline

Dec 28, 2022
Application Filed
Nov 20, 2025
Non-Final Rejection mailed — §102, §103
Feb 11, 2026
Response Filed
May 27, 2026
Final Rejection mailed — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12630660
AQUEOUS DISPERSION OF POLYMER PARTICLES AND USES THEREOF AS AN ADHESIVE COMPOSITION
4y 2m to grant Granted May 19, 2026
Patent 12617884
ORGANIC FINE PARTICLE
4y 1m to grant Granted May 05, 2026
Patent 12590220
THERMOSETTING COMPOSITION, METHOD FOR MANUFACTURING MOLDED ARTICLE USING THE SAME, AND CURED PRODUCT
5y 4m to grant Granted Mar 31, 2026
Patent 12584028
CURABLE ORGANOPOLYSILOXANE COMPOSITION, AND OPTICAL MEMBER FORMED FROM CURED PRODUCT OF SAME
4y 4m to grant Granted Mar 24, 2026
Patent 12577460
Composition for production of coatings comprising improved phosphors
3y 11m to grant Granted Mar 17, 2026
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
84%
With Interview (+14.0%)
3y 1m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 789 resolved cases by this examiner. Grant probability derived from career allowance rate.

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