Prosecution Insights
Last updated: October 02, 2026
Application No. 18/817,323

SiC SINGLE CRYSTAL BOULE, MANUFACTURING METHOD OF SiC SINGLE CRYSTAL BOULE, AND MANUFACTURING METHOD OF SiC SUBSTRATE

Non-Final OA §103
Filed
Aug 28, 2024
Priority
Aug 31, 2023 — JP 2023-141660
Examiner
KUNEMUND, ROBERT M
Art Unit
Tech Center
Assignee
RESONAC Corporation
OA Round
1 (Non-Final)
82%
Grant Probability
Favorable
1-2
OA Rounds
10m
Est. Remaining
95%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allowance Rate
1100 granted / 1341 resolved
+22.0% vs TC avg
Moderate +13% lift
Without
With
+13.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
35 currently pending
Career history
1359
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
66.8%
+26.8% vs TC avg
§102
12.0%
-28.0% vs TC avg
§112
10.3%
-29.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1341 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 . 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. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claim(s) 1 to 8 is/are rejected under 35 U.S.C. 103 as being unpatentable over Xu et al (2019/0323145). The Xu et al reference teaches a silicon carbide boule, note entire reference. The boule is grown by sublimation or PVT methods. The boule has a line orthogonal to the crystal growth direction. This crosses the largest inscribed circle and connects two circumferential points. The range for this can be above 200mm, note paras 0083, 0088 and 0089. The sole difference between the instant claims and the prior art is the specific length range of this line. However, it would have been obvious to one of ordinary skill in the art before the filing date of the instant invention to determine the length range of the line in the XU et al reference in order to have the desired sized of the silicon carbide for further processing. Noting, the reference does teach growing difference sizes of the silicon carbide boule and over the ranges claimed. Claims 9 and 10 are allowable over the art of record. The art does not teach nor render obvious the instantly claimed method, noting in particular the use of a laser during growth and where the laser is pointed. Examiner’s Remarks The remaining references are merely cited of interest as showing the state of the art in silicon carbide growth. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ROBERT M KUNEMUND whose telephone number is (571)272-1464. The examiner can normally be reached M-F 8:00 am to 4:30 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, Kaj Olsen can be reached at 571-272-1344. 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. RMK /ROBERT M KUNEMUND/Primary Examiner, Art Unit 1714
Read full office action

Prosecution Timeline

Aug 28, 2024
Application Filed
Aug 20, 2026
Non-Final Rejection mailed — §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

1-2
Expected OA Rounds
82%
Grant Probability
95%
With Interview (+13.2%)
2y 11m (~10m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1341 resolved cases by this examiner. Grant probability derived from career allowance rate.

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