Prosecution Insights
Last updated: July 17, 2026
Application No. 18/810,920

FLOW DIVIDER AND LIQUID PROCESSING SYSTEM

Non-Final OA §102
Filed
Aug 21, 2024
Priority
Aug 22, 2023 — JP 2023-135034
Examiner
CLEMENTE, ROBERT ARTHUR
Art Unit
Tech Center
Assignee
Tokyo Electron Limited
OA Round
1 (Non-Final)
81%
Grant Probability
Favorable
1-2
OA Rounds
6m
Est. Remaining
88%
With Interview

Examiner Intelligence

Grants 81% — above average
81%
Career Allowance Rate
1080 granted / 1335 resolved
+20.9% vs TC avg
Moderate +7% lift
Without
With
+7.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
30 currently pending
Career history
1360
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
59.1%
+19.1% vs TC avg
§102
15.9%
-24.1% vs TC avg
§112
7.2%
-32.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1335 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. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claims 1, 2, 8, 10, and 14 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by US Patent Application Publication No. 2006/0137663 to Vaught (hereinafter referred to as Vaught). In regard to claim 1, as shown in figures 1B and 1F, Vaught can be considered to disclose a flow divider (10) with a flow divider main body (1, 1a) having a guide flow path (5a, 5b). An inlet (2a) is provided through which a liquid can be guided into the guide flow path. A first outlet (2c) and a second outlet (2b) can discharge the liquid to an outside from the guide flow path. As shown in figures 1B and 1F, the first outlet (2c) is located above the second outlet (2b). The flow divider of Vaught discloses all of the claimed structural features and is capable of operating such that when a bubble exists in the liquid within the guide flow path, a volume of the bubble flowing out to the outside along with the liquid through the second outlet (2b) is smaller than the volume of the bubble flowing to the outside along with the liquid through the first outlet (2c). In regard to claim 2, the guide flow path (5a, 5b) can be considered to comprise an inflow guideway into which the liquid from the inlet (2a) is introduced, a first outflow guideway located between the inflow guideway and the first outlet (2c), and a second outflow guideway located between the inflow guideway and the second outlet (2b). The flow divider main body (1, 1a) comprises a guide partition (250, 250a) configured to partition at least a part of the inflow guideway. The inlet (2a) discharges the liquid into the inflow guideway toward the guide partition (250, 250a). In regard to claim 8, The flow divider of Vaught discloses all of the claimed structural features and is capable of operating such that a flow rate of the liquid flowing out to the outside from the guide flow path through the first outlet (2c) is less than a flow rate of the liquid flowing out to the outside from the guide flow path through the second outlet (2b). In regard to claim 10, as shown in the embodiment of figure 1B, the flow divider main body can be considered to comprise a first divided main body (1a) and a second divided main body (250) configured to be detachably attached to each other. In regard to claim 11, as shown in figures 1G and 1H, Vaught can be considered to disclose a liquid processing system. The system includes a flow divider (10) as claimed in claim 1 of the present application, as discussed above. The flow divider can allow a processing liquid to be guided into the guide flow path though the inlet and be flown out from the guide flow path through the first outlet and the second outlet. As shown in figures 1G and 1H, lines are connected to the first outlet and the second outlet. As discussed in paragraph [0002], the liquid can be used in various processes, such as being sent to an engine. In this case, the engine can be considered a processor, as broadly recited in the claim, that receives a supply of the liquid from the second outlet to perform a process with the liquid. In regard to claim 14, as shown in figures 1G and 1H, the system can include a plurality of flow dividers (10). Claims 1 – 3, 6, and 9 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by KR 10-1652375 (hereinafter referred to as KR ‘375). In regard to claim 1, as shown in figures 2 – 6, KR ‘375 discloses a flow divider (200) having a flow divider main body (210, 220)with a guide flow path. An inlet (110) can allow a liquid to be guided into the guide flow path. A first outlet (203) and a second outlet (201) can discharge the liquid to an outside from the guide flow path. As shown in figures 2, 4, and 6, the first outlet (203) is located above the second outlet (201). The flow divider (200) of KR ‘375 discloses all of the claimed structural features and is capable of operating such that when a bubble exists in the liquid within the guide flow path, a volume of the bubble flowing out to the outside along with the liquid through the second outlet (201) is smaller than the volume of the bubble flowing to the outside along with the liquid through the first outlet (203). In regard to claim 2, the guide flow path can be considered to comprise an inflow guideway into which the liquid from the inlet (110) is introduced, a first outflow guideway located between the inflow guideway and the first outlet (203), and a second outflow guideway located between the inflow guideway and the second outlet (201). The flow divider main body (210, 220) comprises a guide partition (230) configured to partition at least a part of the inflow guideway. The inlet (110) discharges the liquid into the inflow guideway toward the guide partition (230). In regard to claim 3, the inflow guideway extends in a first (horizontal) direction, the first outflow guideway and the second outflow guideway are located deviated from the inflow guideway in a second direction perpendicular to the first direction, and the liquid is guided in the second direction after being guided in the first direction in the inflow guideway. In regard to claim 6, the guide flow path can be considered to comprise an inflow guideway into which the liquid from the inlet (110) is introduced, a first outflow guideway located between the inflow guideway and the first outlet (203), and a second outflow guideway located between the inflow guideway and the second outlet (201). As shown in figures 2, 4, and 6, the liquid can head towards the first outlet (203) in a swirling flow in at least a part of the first outflow guideway. In regard to claim 9, the guide flow path can be considered to comprise an inflow guideway into which the liquid from the inlet (110) is introduced, a first outflow guideway located between the inflow guideway and the first outlet (203), and a second outflow guideway located between the inflow guideway and the second outlet (201). As shown in figures 2, 4, and 6, the overflow finder (230) can be considered to form a protrusion protruding downwards from an inner wall surface of the flow divider main body that defines at least one of the inflow guideway or the first outflow guideway. Allowable Subject Matter Claims 4, 5, 7, 12, and 13 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 The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Other prior art references listed on the PTO-892 (Notice of References Cited) are considered to be of interest disclosing similar devices. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Robert Clemente whose telephone number is (571)272-1476. The examiner can normally be reached M-F 9-5. 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, Benjamin Lebron can be reached at 571-272-0475. 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. /ROBERT CLEMENTE/Primary Examiner, Art Unit 1773
Read full office action

Prosecution Timeline

Aug 21, 2024
Application Filed
Jul 09, 2026
Non-Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12678724
FILTER MATERIAL FOR AIR FILTER AND METHOD FOR PRODUCING FILTER MATERIAL
2y 3m to grant Granted Jul 14, 2026
Patent 12673290
DRYER FOR COMPRESSED GAS, COMPRESSOR INSTALLATION PROVIDED WITH A DRYER AND A METHOD FOR DRYING COMPRESSED GAS
4y 5m to grant Granted Jul 07, 2026
Patent 12673876
SYSTEMS & METHODS FOR AMMONIA RECOVERY, ACID GAS SEPARATION, OR COMBINATION THEREOF
2y 4m to grant Granted Jul 07, 2026
Patent 12654122
ZIGZAG-FOLDED NONWOVEN MATERIAL
3y 8m to grant Granted Jun 16, 2026
Patent 12654119
MID-PRESSURE WATER SEPARATION FOR ENVIRONMENTAL CONTROL SYSTEM
2y 8m to grant Granted Jun 16, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
81%
Grant Probability
88%
With Interview (+7.2%)
2y 5m (~6m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1335 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month