Prosecution Insights
Last updated: August 12, 2026
Application No. 18/435,588

Compound Having Unsaturated Double Bond, Composition Comprising The Compound, Polybenzoxazole, And Polybenzoxazole Film For Semiconductor Device

Non-Final OA §103
Filed
Feb 07, 2024
Priority
Feb 09, 2023 — JP 2023-018629
Examiner
FRASER, STEWART A
Art Unit
Tech Center
Assignee
Nippon Kayaku Kabushiki Kaisha
OA Round
1 (Non-Final)
86%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allowance Rate
1167 granted / 1357 resolved
+26.0% vs TC avg
Moderate +14% lift
Without
With
+14.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
28 currently pending
Career history
1370
Total Applications
across all art units

Statute-Specific Performance

§101
1.3%
-38.7% vs TC avg
§103
48.3%
+8.3% vs TC avg
§102
22.3%
-17.7% vs TC avg
§112
18.1%
-21.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1357 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 is the initial office action for US Patent Application No. 18/435588 by Kawamoto et al. Claims 1-22 are currently pending and have been fully considered. Claim Objections Claim 1 is objected to because of the following informalities: In the last line of claim 1, there appears to be a closing parenthesis after the number 9, but doesn’t have a corresponding opening parenthesis. Appropriate correction is required. 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. Claims 1-22 are rejected under 35 U.S.C. 103 as being unpatentable over Kanatani et al. (US 2005/0244739 A1), herein referred to as Kanatani. Kanatani teaches [0012-0017 and 0024] a negative type photosensitive resin composition which comprises a polyamide having a structural unit represented by formulas (1) and (5) and has a photopolymerizable unsaturated double bond: PNG media_image1.png 190 562 media_image1.png Greyscale PNG media_image2.png 208 584 media_image2.png Greyscale Kanatani further teaches [0018-0019 and 25] the negative type photosensitive resin composition described in formulas (1) and (5), wherein the polyamide having a photopolymerizable unsaturated double bond includes a structural unit represented by the following formula (2): PNG media_image3.png 148 480 media_image3.png Greyscale Kanatani further teaches [0049, 0052-0054] bis(o-aminophenol) divalent linking groups may be substituted in the resin compositions described above in order to form the base polymer for the negative type photosensitive resin composition. Kanatani further teaches [0131-0132] a coated film of the negative type photosensitive resin composition is converted to a polybenzoxazole film or polyimide film excellent in heat resistance and chemical resistance by heating to 200 degrees Celsius or higher to allow a dehydration cyclization reaction to proceed or by simultaneous occurrence of crosslinking. A semiconductor device can subsequently be produced using the above-mentioned polyamide-containing negative type photosensitive resin composition. Furthermore, a semiconductor device can be produced using the method for the formation of relief patterns with the above polybenzoxazole film or polyimide film. In view of the teachings of Kanatani, at the time of the filing date of the present application, it would have been obvious to one of ordinary skill in the art to synthesize an unsaturated double bond composition that exhibits improved heat resistance and chemical resistance properties. Therefore, claims 1-22 are considered to be obvious in view of Kanatani. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Kawabata et al. (US 2018/0215874 A1) disclose a composition containing a resin selected from a polyimide precursor, polyimide, polybenzoxazole precursor and polybenzoxazole, wherein the resin has a polymerizable group. The resin may further be cured and employed in a method for manufacturing a semiconductor device. Komatsu (US 2004/0142275 A1) discloses a heat-resistant polymer used based on a polybenzoxazole precursor which is obtained from a dicarboxylic acid and a dihydroxydiamine, such as a bisaminophenol. The heat-resistant polymer may further be employed in a photoresist resin composition which is then utilized in a fabrication process for semiconductor devices. Any inquiry concerning this communication or earlier communications from the examiner should be directed to STEWART A FRASER whose telephone number is (571)270-5126. The examiner can normally be reached M-F, 7am-4pm, EST. 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, Miriam Stagg can be reached at 571-270-5256. 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. /STEWART A FRASER/Primary Examiner, Art Unit 1724
Read full office action

Prosecution Timeline

Feb 07, 2024
Application Filed
Aug 04, 2026
Non-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

1-2
Expected OA Rounds
86%
Grant Probability
99%
With Interview (+14.3%)
2y 5m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1357 resolved cases by this examiner. Grant probability derived from career allowance rate.

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