Prosecution Insights
Last updated: October 01, 2026
Application No. 18/800,054

GAS-LIQUID SEPARATOR

Non-Final OA §102
Filed
Aug 10, 2024
Priority
Aug 25, 2023 — JP 2023-136700
Examiner
HOBSON, STEPHEN
Art Unit
Tech Center
Assignee
Honda Motor Co., Ltd.
OA Round
1 (Non-Final)
65%
Grant Probability
Favorable
1-2
OA Rounds
10m
Est. Remaining
86%
With Interview

Examiner Intelligence

Grants 65% — above average
65%
Career Allowance Rate
411 granted / 628 resolved
+5.4% vs TC avg
Strong +20% interview lift
Without
With
+20.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
50 currently pending
Career history
674
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
49.3%
+9.3% vs TC avg
§102
17.5%
-22.5% vs TC avg
§112
31.6%
-8.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 628 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 . 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. Claims 1-7 and 10 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Goebel et al. US 2010/0227230 (hereafter Goebel). Regarding claim 1, Goebel teaches a gas-liquid separator (Fig 3) comprising a container (110) including an upper part (part comprising inlet 146), a bottom part (part comprising 116) and a side part (part comprising 130 and 154) connecting the upper part and the bottom part to form a gas-liquid separation chamber (chamber within 130) where a gas-liquid two-phase flow is separated into a gas phase (148) and a liquid phase (150), wherein the side part includes a first side part (part including top of 130 and top of 114) and a second side part (154 to the left of 134 in Fig 3) opposed to each other, the container includes an inlet (inlet for flow 146) provided at the upper part so that the gas-liquid two-phase flow flows into the gas-liquid separation chamber through the inlet, and an outlet (outlet near 122) provided at the first side part so that the gas phase separated in the gas-liquid separation chamber flows out of the gas-liquid separation chamber through the outlet, and the gas-liquid separator further comprises a flow path forming part (bottom part of 130) forming an inclined flow path extending diagonally downward so that the gas-liquid two-phase flow flowed into through the inlet collides with the second side part below the outlet (¶36). [AltContent: textbox (Flow path forming part)][AltContent: arrow][AltContent: textbox (Second side part)][AltContent: arrow][AltContent: arrow][AltContent: arrow][AltContent: textbox (First side part)][AltContent: textbox (Upper part)][AltContent: arrow][AltContent: arrow][AltContent: textbox (Bottom part)] PNG media_image1.png 200 400 media_image1.png Greyscale Regarding claim 2, Goebel teaches all the limitations of claim 1. Goebel further teaches a shielding plate (154 to the right of 134) configured to separate a space in the container into a storage chamber (chamber between 134 and 144) where the liquid phase separated in the gas-liquid separation chamber is stored and the gas-liquid separation chamber above the storage chamber, under a state where the storage chamber and the gas-liquid separation chamber communicate with each other through a communication portion (134), and the shielding plate is provided so as to extend substantially horizontally below the flow path forming part (as shown in Fig 3). [AltContent: arrow][AltContent: textbox (Shielding plate)][AltContent: textbox (Flow path forming part)][AltContent: arrow][AltContent: textbox (Second side part)][AltContent: arrow][AltContent: arrow][AltContent: arrow][AltContent: textbox (First side part)][AltContent: textbox (Upper part)][AltContent: arrow][AltContent: arrow][AltContent: textbox (Bottom part)] PNG media_image1.png 200 400 media_image1.png Greyscale Regarding claim 3, Goebel teaches all the limitations of claim 2. Goebel further teaches the flow path forming part includes a tube part (part comprising 128) extending in a vertical direction (as shown by flow arrow 148) to communicate with the inlet, and an inclined part (middle of venturi 138) extending diagonally toward the second side part to connect with a lower end portion of the tube part, and a cross-sectional shape of the inclined part is substantially concave with an upper space open (as shown in Fig 3). Regarding claim 4, Goebel teaches all the limitations of claim 2. Goebel further teaches the communication portion is configured by a gap between a peripheral portion of the shielding plate and the side part (as shown in Fig 3, where the gas comprises porous media 134). Regarding claim 5, Goebel teaches all the limitations of claim 2. Goebel further teaches the communication portion is configured by a through hole penetrating the shielding plate (as shown in Fig 3, where the through hole comprises porous media 134). Regarding claim 6, Goebel teaches all the limitations of claim 2. Goebel further teaches the shielding plate is fixed to a lower end portion of the flow path forming part (as shown in Fig 3). Regarding claim 7, Goebel teaches all the limitations of claim 1. Goebel further teaches a preventing part extending diagonally downward from the first side part below the outlet toward the second side part to prevent the gas-liquid two-phase flow from flowing toward the outlet (as shown in Fig 3). [AltContent: arrow][AltContent: textbox (Preventing part)][AltContent: textbox (Flow path forming part)][AltContent: arrow][AltContent: textbox (Second side part)][AltContent: arrow][AltContent: arrow][AltContent: arrow][AltContent: textbox (First side part)][AltContent: textbox (Upper part)][AltContent: arrow][AltContent: arrow][AltContent: textbox (Bottom part)] PNG media_image1.png 200 400 media_image1.png Greyscale Regarding claim 10, Goebel teaches all the limitations of claim 1. Goebel further teaches wherein the inclined flow path includes a flow path inlet and a flow path outlet respectively provided an upper end portion and a lower end portion of the inclined flow path, and an opening area of the flow path inlet is smaller than an opening area of the flow path outlet (as shown in Fig 3). [AltContent: textbox (Flow path outlet)][AltContent: textbox (Flow path inlet)][AltContent: arrow][AltContent: arrow][AltContent: textbox (Preventing part)][AltContent: textbox (Flow path forming part)][AltContent: arrow][AltContent: textbox (Second side part)][AltContent: arrow][AltContent: arrow][AltContent: arrow][AltContent: textbox (First side part)][AltContent: arrow] PNG media_image1.png 200 400 media_image1.png Greyscale Allowable Subject Matter Claims 8-9 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. Regarding claim 8, the closest prior art is Goebel US 2010/0227230 which teaches a gas liquid separator a container including an upper part, a bottom part and a side part and a flow path forming part. The prior art does not teach the lower and upper containers as claimed. Claim 9 depends upon claim 8. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to STEPHEN HOBSON whose telephone number is (571)272-9914. The examiner can normally be reached 9am-5pm. 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, Jennifer Dieterle can be reached at 571-270-7872. 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. /STEPHEN HOBSON/Examiner, Art Unit 1776
Read full office action

Prosecution Timeline

Aug 10, 2024
Application Filed
Aug 11, 2026
Non-Final Rejection mailed — §102 (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
65%
Grant Probability
86%
With Interview (+20.3%)
3y 0m (~10m remaining)
Median Time to Grant
Low
PTA Risk
Based on 628 resolved cases by this examiner. Grant probability derived from career allowance rate.

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