Prosecution Insights
Last updated: July 17, 2026
Application No. 17/420,924

GLASS COMPOSITION RESISTANT TO ION BOMBARDMENT, CLADDING GLASS OF MICROCHANNEL PLATE, MICROCHANNEL PLATE AND PREPARING METHOD THEREOF

Non-Final OA §102§112
Filed
Aug 11, 2023
Priority
Mar 03, 2021 — nonprovisional of PCTCN2021078834
Examiner
MILLER, CAMERON KENNETH
Art Unit
1731
Tech Center
1700 — Chemical & Materials Engineering
Assignee
China Building Materials Academy
OA Round
1 (Non-Final)
80%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
80%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allowance Rate
285 granted / 354 resolved
+15.5% vs TC avg
Minimal -0% lift
Without
With
+-0.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
45 currently pending
Career history
394
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
74.9%
+34.9% vs TC avg
§102
9.2%
-30.8% vs TC avg
§112
7.8%
-32.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 354 resolved cases

Office Action

§102 §112
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 During a telephone conversation with Andrew Young on 07/01/2026 a provisional election was made without traverse to prosecute the invention of the cladding glass of micro channel plate resistant to ion bombardment claims 4 and 11-12. Affirmation of this election must be made by applicant in replying to this Office action. Claims 5-10 are withdrawn from further consideration by the examiner, 37 CFR 1.142(b), as being drawn to a non-elected invention. Priority Examiner notes the certified copy of the foreign priority document appears to be missing. Claim Objections Claims 4 and 11 are objected to because of the following informalities: claims 4 and 11 at line 1 recite “a cladding glass of microchannel …” which appears as if it should instead recite “a cladding glass of a microchannel …”. Appropriate correction is required. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claim 12 is rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 12 recites the limitation "the glass composition resistant to ion bombardment" in line 1. There is insufficient antecedent basis for this limitation in the claim. Claim 12 depends upon claim 4, which recites “a cladding glass of microchannel plate resistant to ion bombardment”. It appears as if claim 12 should instead recite “the cladding glass of microchannel plate resistant to ion bombardment”. 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) 4 and 11-12 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Cao et al. (CN106746607A with reference to the original Chinese publication, hereinafter referred to as Cao). Regarding claim 4, Cao discloses a cladding glass of microchannel plate resistant to ion bombardment (see Cao at the Abstract of the machine translation, disclosing a microchannel slab glass), comprising a composition, in terms of mole percentage, comprising: 60 mole% to 78 mole% of SiO2 (see Cao at Example 2 from the Table at [0074] of the original Chinese publication, disclosing an example of a glass comprising 63.0 mol% SiO2); 1 mole% to 6 mole% of Bi2O3 (see Cao at Example 2 from the Table at [0074] of the original Chinese publication, disclosing an example of a glass comprising 1.0 mol% Bi2O3); 5 mole% to 18 mole% of PbO (see Cao at Example 2 from the Table at [0074] of the original Chinese publication, disclosing an example of a glass comprising 12.0 mol% PbO); 5 mole% to 20 mole% of alkali metal oxide (see Cao at Example 2 from the Table at [0074] of the original Chinese publication, disclosing an example of a glass comprising 5.0 mol% Cs2O); 2 mole% to 8 mole% of alkaline-earth metal oxide (see Cao at Example 2 from the Table at [0074] of the original Chinese publication, disclosing an example of a glass comprising 1.0 mol% BaO, 2.5 mol% CaO, and 2.5 mol% SrO, for a total alkaline-earth metal oxide content of 6 mol%); 0.1 mole% to 2.5 mole% of Al2O3 (see Cao at Example 2 from the Table at [0074] of the original Chinese publication, disclosing an example of a glass comprising 2.0 mol% Al2O3); and 3 mole% to 9 mole% of specialty oxide; wherein, the specialty oxide is selected from at least one of Sc2O3, SrO, ZrO2, MoO3 and MoO2 (see Cao at Example 2 from the Table at [0074] of the original Chinese publication, disclosing an example of a glass comprising 2.5 mol% SrO and 1.5 mol% ZrO2 to provide 4 mol% specialty oxide), and 0 mole% to 9 mole% of Sc2O3 (see Cao at Example 2 from the Table at [0074] of the original Chinese publication, disclosing an example of a glass comprising 0% Sc2O3); 0 mole% to 9 mole% of SrO (see Cao at Example 2 from the Table at [0074] of the original Chinese publication, disclosing an example of a glass comprising 2.5 mol% SrO); 0 mole% to 6 mole% of ZrO2 (see Cao at Example 2 from the Table at [0074] of the original Chinese publication, disclosing an example of a glass comprising 1.5 mol% ZrO2); and 0 mole% to 3 mole% of MoO3 and/or MoO2 (see Cao at Example 2 from the Table at [0074] of the original Chinese publication, disclosing an example of a glass comprising 0% MoO3 and MoO2). Regarding claim 11, Cao discloses the glass composition further comprises a clarifying agent accounting for 0.1% to 0.8% of the total mass of the components (see Cao at Example 2 from the Table at [0074] of the original Chinese publication, disclosing an example of a glass comprising a sum of Sb2O3 and/or As2O3 of 0.2 wt.%). Regarding claim 12, Cao discloses the alkali metal oxide is selected from at least one of Na2O, K2O and Cs2O (see Cao at Example 2 from the Table at [0074] of the original Chinese publication, disclosing an example of a glass comprising 5.0 mol% Cs2O); the alkaline earth metal oxide is selected from at least one of MgO, BaO and CaO (see Cao at Example 2 from the Table at [0074] of the original Chinese publication, disclosing an example of a glass comprising 1.0 mol% BaO, 2.5 mol% CaO, and 2.5 mol% SrO, for a total alkaline-earth metal oxide content of 6 mol%); and the clarifying agent is Sb2O3 and/or As2O3 (see Cao at Example 2 from the Table at [0074] of the original Chinese publication, disclosing an example of a glass comprising a sum of Sb2O3 and/or As2O3 of 0.2 wt.%). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to CAMERON K MILLER whose telephone number is (571)272-4616. The examiner can normally be reached M-F 8:00am - 5:00pm 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, Amber Orlando can be reached at (571) 270-3149. 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. CAMERON K MILLER Examiner Art Unit 1731 /CAMERON K MILLER/Examiner, Art Unit 1731
Read full office action

Prosecution Timeline

Aug 11, 2023
Application Filed
Jul 07, 2026
Non-Final Rejection mailed — §102, §112 (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
80%
Grant Probability
80%
With Interview (-0.3%)
2y 10m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 354 resolved cases by this examiner. Grant probability derived from career allowance rate.

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