Prosecution Insights
Last updated: July 17, 2026
Application No. 18/862,043

CERAMIC MATRIX COMPOSITE AND METHOD FOR PRODUCING THE SAME

Non-Final OA §102
Filed
Oct 31, 2024
Priority
Jun 21, 2022 — JP 2022-099341 +1 more
Examiner
SCHLEIS, DANIEL J
Art Unit
1784
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Tosoh Corporation
OA Round
1 (Non-Final)
72%
Grant Probability
Favorable
1-2
OA Rounds
1y 0m
Est. Remaining
77%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allowance Rate
558 granted / 780 resolved
+6.5% vs TC avg
Moderate +5% lift
Without
With
+5.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
16 currently pending
Career history
799
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
76.2%
+36.2% vs TC avg
§102
6.3%
-33.7% vs TC avg
§112
10.5%
-29.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 780 resolved cases

Office Action

§102
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 . Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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. Claims 1-11 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by WIPO Publication Number 2020/203484 (U.S. Patent Application Publication Number 2022/20185742 utilized as translation and cited as “Yamashita”). In regards to independent claim 1 and dependent claims 2-3 and 8, Yamashita is directed to a coating layer-bonded continuous ceramic fiber and a ceramic matrix composite material. (¶1) This would correspond to a component. The coating layer-bonded continuous ceramic fiber is formed from a continuous ceramic fiber having a coating layer of a metal compound with a thickness of 50 nm or less on the surface. (¶13) The ceramic matrix is at least one of alumina and mullite. (¶65) This corresponds to a ceramic matrix as set forth in the instant claim. Any method may be used as the method for composition, however the preferred method includes impregnating continuous ceramic fibers with a slurry including a raw material of the ceramic matrix and then heat-treating this resultant. (¶63) This corresponds to the claimed method. As to claim 4, Yamashita teaches that the CMC includes 25% by mass alumina and 75% by mass of mullite. (¶107) This falls within the claimed range. As to claim 5, the continuous fiber of Yamashita is an alumina fiber or a mullite fiber. (¶16) As to claim 6-7,Yamashita teaches a plate-shaped CMC includes 33.4% by volume of the fibers and the density being 2.48 g/cm3. (¶109) These fall within the claimed range. As to claim 9, Yamashita teaches a CMC with particle sizes is 0.19 microns and 1.66 microns. This falls within the claimed ratio. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Daniel Schleis whose telephone number is (571)270-5636. The examiner can normally be reached 10 AM to 4 PM Monday through Friday. 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, Humera Sheikh can be reached at (571) 272-0604. 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 J. Schleis Primary Examiner Art Unit 1784 /Daniel J. Schleis/Primary Examiner, Art Unit 1784
Read full office action

Prosecution Timeline

Oct 31, 2024
Application Filed
Jun 26, 2026
Non-Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12680575
SLIDING MATERIAL
1y 10m to grant Granted Jul 14, 2026
Patent 12674244
LOW TEMPERATURE HYBRID BONDING METALLIZATION
3y 5m to grant Granted Jul 07, 2026
Patent 12668867
ION BEAM DEPOSITION OF RUTHENIUM THIN FILMS
2y 9m to grant Granted Jun 30, 2026
Patent 12668870
ION BEAM DEPOSITION OF A LOW RESISTIVITY METAL
2y 7m to grant Granted Jun 30, 2026
Patent 12661743
COMPOSITE MATERIAL AND METHOD FOR PRODUCING SAID COMPOSITE MATERIAL
1y 8m to grant Granted Jun 23, 2026
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
72%
Grant Probability
77%
With Interview (+5.2%)
2y 9m (~1y 0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 780 resolved cases by this examiner. Grant probability derived from career allowance rate.

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