Prosecution Insights
Last updated: August 17, 2026
Application No. 19/076,073

LIQUID EJECTION APPARATUS AND CONTROL METHOD FOR LIQUID EJECTION APPARATUS

Non-Final OA §102
Filed
Mar 11, 2025
Priority
Mar 11, 2024 — JP 2024-036751
Examiner
LEGESSE, HENOK D
Art Unit
Tech Center
Assignee
Seiko Epson Corporation
OA Round
1 (Non-Final)
86%
Grant Probability
Favorable
1-2
OA Rounds
8m
Est. Remaining
88%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allowance Rate
941 granted / 1090 resolved
+26.3% vs TC avg
Minimal +2% lift
Without
With
+2.2%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
21 currently pending
Career history
1102
Total Applications
across all art units

Statute-Specific Performance

§101
1.0%
-39.0% vs TC avg
§103
42.6%
+2.6% vs TC avg
§102
31.3%
-8.7% vs TC avg
§112
14.9%
-25.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1090 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. Information Disclosure Statement The information disclosure statement (IDS) submitted on 03/11/2025 is being considered by the examiner. 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, 2, 7-10 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Nakagawa et al. (US 2020/0108616). Regarding claim 1, Nakagawa et al teaches a liquid ejection apparatus (figs.1-3) comprising: a liquid ejection unit (8 figs.1-3) configured to eject liquid; a liquid amount detection unit (202 in fig.2 counts waste ink amount; S101 fig.13) configured to detect, in a waste liquid container (20 figs.1,3) configured to contain liquid ejected by the liquid ejection unit as waste liquid, that a contained amount of waste liquid contained in the waste liquid container reaches a threshold (paragraphs 0087, 0091,0098,0106,0111); and a control unit (controlling elements in 100,200,300 fig.2), the control unit being configured to execute: calculation processing of calculating an evaporation amount of waste liquid when waste liquid contained in the waste liquid container evaporates from the waste liquid container provided with an atmosphere opening hole (figs.10-13,14,15; paragraphs 0086,0087,0094-0102,0105,0112); and estimation processing of estimating a contained amount of waste liquid contained in the waste liquid container, based on an additional amount of waste liquid when liquid ejected by the liquid ejection unit is added to the waste liquid container as waste liquid and a calculation result in the calculation processing (figs.13,16-19; paragraphs 0098-0100,0102,0106-0108,0111,0112,0121,0123). Regarding claim 2, Nakagawa et al further teaches wherein the control unit executes notification processing of causing a notification unit to issue a notification related to a contained amount of waste liquid contained in the waste liquid container, based on an estimation result in the estimation processing (fig.16; paragraphs 0105,0106). Regarding claim 7, Nakagawa et al further teaches wherein the control unit executes the notification processing of causing the notification unit to issue an error notification related to waste liquid contained in the waste liquid container (20 figs.1,3), based on a detection result by the liquid amount detection unit and an estimation result in the estimation processing (fig.16; paragraphs 0105,0106). Regarding claim 8, Nakagawa et al further teaches wherein the waste liquid container (20 figs.1,3) is replaceable (paragraphs 0035,0092,0106). Regarding claim 9, Nakagawa et al further teaches comprising the waste liquid container (20 figs.1,3) configured to contain liquid ejected by the liquid ejection unit (8) as waste liquid, wherein the waste liquid container (20) includes the atmosphere opening hole configured to evaporate waste liquid contained in the waste liquid container therethrough (evaporation opening including 21 figs.10,11; paragraphs 0086). Regarding claim 10, Nakagawa et al further teaches a control method for a liquid ejection apparatus (figs.1-3) configured to perform control related to a contained amount of waste liquid that is liquid ejected by a liquid ejection unit (8 figs.1-3) and contained in a waste liquid container (20 figs.1-3) as waste liquid, the control method comprising executing: determination processing of determining that a contained amount of waste liquid contained in the waste liquid container (20 figs.1-3) reaches a threshold, based on a detection result by a liquid amount detection unit (202 in fig.2; S101 fig.13; paragraphs 0087, 0091,0098,0106,0111); calculation processing of calculating an evaporation amount of waste liquid when waste liquid contained in the waste liquid container evaporates from the waste liquid container provided with an atmosphere opening hole (figs.10-13,14,15; paragraphs 0086,0087,0094-0102,0105,0112); and estimation processing of estimating a contained amount of waste liquid contained in the waste liquid container, based on an additional amount of waste liquid when liquid ejected by the liquid ejection unit is added to the waste liquid container as waste liquid and a calculation result in the calculation processing (figs.13,16-19; paragraphs 0098-0100,0102,0106-0108,0111,0112,0121,0123). Allowable Subject Matter Claims 3-6 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. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to HENOK D LEGESSE whose telephone number is (571)270-1615. The examiner can normally be reached General Schedule 9:00 am- 5:00 pm, IFP. 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, Douglas Rodriguez can be reached at (571)431-0716. 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. /HENOK D LEGESSE/Primary Examiner, Art Unit 2853
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Prosecution Timeline

Mar 11, 2025
Application Filed
Aug 05, 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
86%
Grant Probability
88%
With Interview (+2.2%)
2y 1m (~8m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1090 resolved cases by this examiner. Grant probability derived from career allowance rate.

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