Prosecution Insights
Last updated: July 17, 2026
Application No. 19/100,200

PUSHING ASSEMBLY AND METHOD FOR GLASS MELTING FURNACE ELECTRODES

Non-Final OA §102
Filed
Jan 31, 2025
Priority
Aug 24, 2022 — provisional 63/373,381 +1 more
Examiner
HERRING, LISA L
Art Unit
Tech Center
Assignee
Corning Incorporated
OA Round
1 (Non-Final)
73%
Grant Probability
Favorable
1-2
OA Rounds
1y 3m
Est. Remaining
90%
With Interview

Examiner Intelligence

Grants 73% — above average
73%
Career Allowance Rate
597 granted / 822 resolved
+12.6% vs TC avg
Strong +17% interview lift
Without
With
+17.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
23 currently pending
Career history
846
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
79.5%
+39.5% vs TC avg
§102
1.2%
-38.8% vs TC avg
§112
10.5%
-29.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 822 resolved cases

Office Action

§102
DETAILED ACTION 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. 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 . 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) 1, 8, and 15 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Yang et al. (CN114907005A – hereinafter Yang). Regarding claim 1, Yang (Figs. 1-2, [0037]-[0038], and [0041]) discloses an electrode pushing assembly (“propulsion mechanism 3” and “electrode support mechanism 2”) comprising: a frame assembly (“pushing bracket 3-1”); a plurality of driving assemblies (“pushing screws 3-5”, “first fixing nut 3-3”, “second fixing nut 3-5”) coupled to the frame assembly; and a push frame (“electrode pressure plate 3-6” and “columns 2-3”) coupled to the plurality of driving assemblies via pushing screws 3-5 and configured to exert a pushing force against the electrode (“electrode brick 5”); and wherein the plurality of driving assemblies are configured to move the push frame. Yang ([0038]) discloses screw 3-5 is connected and installed on the propulsion support 3-1 through a second fixing nut 3-4, and ([0038]) discloses the propulsion/pushing screws rest on the electrode pressure plate 3-6, which is interpreted to provide for the plurality of driving assemblies are each independently removable from the frame assembly and the push frame. Regarding claim 8, Yang (Figs. 1-2, [0037]-[0038], and [0041]) discloses an electrode pushing assembly (“propulsion mechanism 3” and “electrode support mechanism 2”) comprising: a frame assembly (“pushing bracket 3-1”); a plurality of driving assemblies (“pushing screws 3-5”, “first fixing nut 3-3”, “second fixing nut 3-5”) coupled to the frame assembly; and a push frame (“electrode pressure plate 3-6” and “columns 2-3”) coupled to the plurality of driving assemblies via pushing screws 3-5 and configured to exert a pushing force against the electrode (“electrode brick 5”); and wherein the plurality of driving assemblies are configured to move the push frame. Yang ([0038]) discloses screw 3-5 is connected and installed on the propulsion support 3-1 through a second fixing nut 3-4, and ([0038]) discloses the propulsion/pushing screws rest on the electrode pressure plate 3-6 and the propulsion screws advance the electrode. These disclosures are interpreted to provide for the plurality of driving assemblies are each independently removable from the frame assembly and the push frame and exerting a pushing force against the electrode with a push frame that is coupled to a plurality of drive assemblies. Regarding claim 15, in addition to the rejection of claim 1 above, Yang ([0001]) discloses the electrode propulsion device is for substrate glass furnaces, which is interpreted to provide for a glass manufacturing apparatus (i.e. glass furnace) comprising the electrode pushing assembly. Claim(s) 1, 8, and 15 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Guo et al. (CN107892464A – hereinafter Guo). Regarding claim 1, Guo (abstract, Figs. 1 and 2 and pg. 4) discloses an electrode pushing assembly (“electrode pushing device”) for melting glass. Guo discloses the electrode pushing assembly comprising: a frame assembly (“fixed base 3”); a plurality of driving assemblies (“push/pushing rod 4” – pg. 2 discloses more than 2) fixedly coupled to the frame assembly, since it is disclosed the push rods are set on the fixed base (pg. 2) ; and a push frame (“pushing board 5”) coupled to the plurality of driving assemblies and configured to exert a pushing force against the electrode (“electrode tile 1”) and wherein the plurality of driving assemblies (i.e. push rods) are configured to move the push frame (pg. 8 – discloses push rod 4 pushes the pushing plate) and are each independently removable from the frame assembly and push frame, since (pg. 6) it is disclosed the pushing rod is a first screw rod through mounting hole 31. Regarding claim 8, Guo (abstract, Figs. 1 and 2 and pg. 4) discloses an electrode pushing assembly (“electrode pushing device”) for melting glass. Guo discloses the electrode pushing assembly comprising: a frame assembly (“fixed base 3”); a plurality of driving assemblies (“push/pushing rod 4” – pg. 2 discloses more than 2) fixedly coupled to the frame assembly, since it is disclosed the push rods are set on the fixed base (pg. 2) ; and a push frame (“pushing board 5”) coupled to the plurality of driving assemblies and configured to exert a pushing force against the electrode (“electrode tile 1”) and wherein the plurality of driving assemblies (i.e. push rods) are configured to move the push frame (pg. 8 – discloses push rod 4 pushes the pushing plate) and are each independently removable from the frame assembly and push frame, since (pg. 6) it is disclosed the pushing rod is a first screw rod through mounting hole 31. These disclosures are interpreted to provide for the plurality of driving assemblies are each independently removable from the frame assembly and the push frame and exerting a pushing force against the electrode with a push frame that is coupled to a plurality of drive assemblies. Regarding claim 15, in addition to the rejection of claim 1 above, Guo (pgs. 1-2) discloses the electrode brick pushing device is for melting glass in the substrate glass manufacturing field with an electric melting furnace, which is interpreted to provide for a glass manufacturing apparatus (i.e. electric melting furnace) comprising the electrode brick pushing assembly. Allowable Subject Matter Claims 2-7 and 9-14 is/are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. The following is a statement of reasons for the indication of allowable subject matter: the prior art of Yang provides for a plurality of driving assemblies comprising an axially extending drive shaft (corresponding to pushing screws 3-5) or Guo provides for a plurality of driving assemblies comprising an axially extending drive shaft (corresponding to pushing rods as screw rods), as claimed in claims 4 and 11. However, the prior art fails to disclose or fairly suggest the apparatus and method of claim 1, where the push frame is coupled to each of the plurality of driving assemblies via a removable bearing, as claimed in claims 2 and 9. Claims 3-7 include dependency from claim 2 and claims 10-14 include dependency from claim 9. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Caripolti (US 4,215,461) (Figs. 1 and 2, abstract, and Col. 2, line 5965) discloses apparatus for inserting an electrode comprising a column 20 comprising an elevator screw mechanism and within the column 20 is a vertically extending screw shaft 35, an upper stub shaft 36, a stub bearing 37 secured by a nut 38, and another stub shaft 40 received in bearing 41. Caripolti fails to disclose a plurality of driving assemblies coupled to a frame assembly. Any inquiry concerning this communication or earlier communications from the examiner should be directed to LISA HERRING whose telephone number is (571)270-1623. The examiner can normally be reached M-F: EST 8:15am-4:15pm. 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, Alison Hindenlang can be reached at 571-270-7001. 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. /LISA L HERRING/ Primary Examiner, Art Unit 1741
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Prosecution Timeline

Jan 31, 2025
Application Filed
Jun 08, 2026
Non-Final Rejection mailed — §102 (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
73%
Grant Probability
90%
With Interview (+17.2%)
2y 9m (~1y 3m remaining)
Median Time to Grant
Low
PTA Risk
Based on 822 resolved cases by this examiner. Grant probability derived from career allowance rate.

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