Prosecution Insights
Last updated: July 17, 2026
Application No. 18/475,632

GLASS CERAMIC COMPOSITION, PREPARATION METHOD AND APPLICATION THEREOF

Non-Final OA §102
Filed
Sep 27, 2023
Priority
Oct 25, 2022 — CN 202211309304.7
Examiner
HIGGINS, GERARD T
Art Unit
1785
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Shenzhen Yurucheng Dental Materials Co. Ltd.
OA Round
1 (Non-Final)
63%
Grant Probability
Moderate
1-2
OA Rounds
6m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 63% of resolved cases
63%
Career Allowance Rate
538 granted / 855 resolved
-2.1% vs TC avg
Strong +39% interview lift
Without
With
+39.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
45 currently pending
Career history
901
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
58.0%
+18.0% vs TC avg
§102
7.8%
-32.2% vs TC avg
§112
18.4%
-21.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 855 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 . Election/Restrictions Applicant’s election without traverse of Group I, claims 1-7, in the reply filed on 5/13/2026 is acknowledged. Claims 8-10 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to nonelected inventions, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 5/13/2026. Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. Specification The disclosure is objected to because of the following informalities: At [0017], [0019] and [0023], these inequalities should be unitless as a percentage divided by a percentage would result in a unitless ratio and not a percentage. Appropriate correction is required. Claim Objections Claims 3 and 5 are objected to because of the following informalities: In claims 3 and 5, these inequalities should be unitless as a percentage divided by a percentage would result in a unitless ratio and not a percentage. The objection can be overcome by deleting the “%” symbol where it appears in both claims (four instances). Appropriate correction is required. Claim Rejections - 35 USC § 102 Claims 1-7 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Apel et al. (US 7,452,836). With regard to claims 1-7, Apel et al. disclose at least the example 2 in Table 1, which clearly anticipates the composition of claims 1-6 (col. 9, lines 1-30). The composition is a lithium metasilicate as the main crystalline phase that has the lithium metasilicate phase as more than 50 to 80 vol. % of the lithium silicate glass ceramic, which reads claim 7 (col. 3, lines 21-24 and col. 4, lines 33-36). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. The references cited in the EPO Office action are considered cumulative to the present rejection. Any inquiry concerning this communication or earlier communications from the examiner should be directed to GERARD T HIGGINS whose telephone number is (571)270-3467. The examiner can normally be reached M-F 9:30-6pm. 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, Mark Ruthkosky can be reached at (571) 272-1291. 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. /Gerard Higgins/Primary Examiner, Art Unit 1785
Read full office action

Prosecution Timeline

Sep 27, 2023
Application Filed
Jun 30, 2026
Non-Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12679130
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2y 11m to grant Granted Jul 14, 2026
Patent 12680170
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2y 7m to grant Granted Jul 14, 2026
Patent 12674096
Method of Forming an Alkaline-Earth Metal Selenide and/or Sulfide Compound
3y 2m to grant Granted Jul 07, 2026
Patent 12668711
PHOTOLUMINESCENT SECURITY INK FOR CONTINOUS INK-JET PRINTING
2y 4m to grant Granted Jun 30, 2026
Patent 12654429
5G ANTENNA HOUSING WITH FLAME RETARDANT PROPERTIES
2y 9m to grant Granted Jun 16, 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
63%
Grant Probability
99%
With Interview (+39.1%)
3y 4m (~6m remaining)
Median Time to Grant
Low
PTA Risk
Based on 855 resolved cases by this examiner. Grant probability derived from career allowance rate.

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