Prosecution Insights
Last updated: October 02, 2026
Application No. 18/929,123

FLUID STERILIZATION DEVICE

Non-Final OA §103§112
Filed
Oct 28, 2024
Priority
Oct 30, 2023 — JP 2023-185336
Examiner
KIM, SUN U
Art Unit
Tech Center
Assignee
Toyoda Gosei Co., Ltd.
OA Round
1 (Non-Final)
78%
Grant Probability
Favorable
1-2
OA Rounds
10m
Est. Remaining
90%
With Interview

Examiner Intelligence

Grants 78% — above average
78%
Career Allowance Rate
770 granted / 985 resolved
+18.2% vs TC avg
Moderate +12% lift
Without
With
+11.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
48 currently pending
Career history
1011
Total Applications
across all art units

Statute-Specific Performance

§101
1.5%
-38.5% vs TC avg
§103
45.1%
+5.1% vs TC avg
§102
23.9%
-16.1% vs TC avg
§112
19.2%
-20.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 985 resolved cases

Office Action

§103 §112
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 § 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. Claim 7 is rejected under 35 U.S.C. 112(b) as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor regards as the invention. Claim 7 recites that “the support portion in each of the first light source unit and the second light source unit has a truncated cone-shaped portion whose diameter decreases toward the front end of the support portion in a protruding direction”. Specification describes that “Accordingly, the fluid flowing into the flow path space in the flow path tube 100 from the first inlet 101 and the second inlet 102 hits the side surface of the support portion 120 having an inclination in the truncated cone-shaped portion and is reflected in the protruding direction of the support portion 120, forming a flow path toward the accommodation portion 130. Therefore, the fluid may be efficiently brought into contact with the accommodation portion 130, and the cooling efficiency may be improved. Further, heat of the accommodation portion 130 may be efficiently diffused to the support portion 120, and the support portion 120 may be efficiently cooled by the fluid" (see paragraph [0058]). However, claim 7 does not specify the positional relation between the inflow port and the truncated cone-shaped portion of the support portion, and includes a fluid that does not hit the inclined side surface of the truncated cone-shaped portion. Therefore, claim 7 is indefinite. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 1, 4-6 and 8-10 are rejected under 35 U.S.C. 103 as being unpatentable over Japanese Patent Publication No. 2017-051289 A to Hiroki et al. (hereinafter “Hiroki”) in view of Japanese Patent Publication No. 2021-041382 A to Koji et al. (hereinafter “Koji”). Regarding Claim 1, Hiroki teaches a fluid sterilization device (10) comprising: a cylindrical flow path tube (processing chamber 50) having a flow path space therein through which a fluid is capable of flowing; a first inlet (22) provided at a first end of the flow path tube and allowing the fluid to flow into the flow path space; a second inlet (24) provided at a second end of the flow path tube opposite to the first end and allowing the fluid to flow into the flow path space; an outlet (56) provided between the first end and the second end of the flow path tube and allowing the fluid flowing through the flow path space to flow out; a first light source unit (12) disposed at the first end and configured to emit ultraviolet light into the flow path space; and a second light source unit (14) disposed at the second end and configured to emit ultraviolet light into the flow path space (see Figures 1-2; paragraphs [0017]-[0018]). Claim 1 differs from Hiroki in reciting that that the light source is arranged "in the flow path space". Koji teaches a fluid sterilization device (1) comprising a light source (10) within the flow path space (21) to improve the cooling efficiency by arranging the light source in the flow path space (see Figures 2a-2b; paragraphs [0033]-[0034]). It would have been obvious to a person of ordinary skill in the art to modify Hiroki to include light sources within the flow path space to dissipate heat generated as suggested by Koji (see paragraphs [0034]). Regarding Claim 4-6 and 8, Koji teaches that the light source unit has a light emitting element 16, a columnar support portion 118, and an accommodation portion provided at the tip of the portion 118 and accommodating the light emitting element 16, the accommodation portion is formed so as to extend radially outward from the tip of the portion 118 over the entire circumference of the tip of the columnar support portion, and the accommodation portion has a cylindrical portion 122 surrounding a part of the tip of the portion 118 (see Figures 2a-2b; paragraphs [0016]-[0027], [0035]-[0036]). Regarding Claims 9-10, Koji teaches a protrusion 125 or a groove for controlling the flow direction of the liquid flowing in from the inflow port 22 is provided on the side surface of the cap 12 and the side surface of the portion 118 (see Figure 4; paragraphs [0039]-[0042]). Claims 2-3 are rejected under 35 U.S.C. 103 as being unpatentable over Hiroki in view of Koji as applied to claim 1 above and further in view of Japanese Patent Publication No. 2022-63592 A (Katsuro). Hiroki in view of Koji teaches the fluid sterilization device of claim 1. Claim 2 differ from Hiroki in view of Koji in reciting that the inlet does not intersect with a central axis of the flow path tube when viewed from an extending direction of the central axis of the flow path tube, such that a fluid flowing from the inlet forms a helical flow along an inner circumferential surface of the flow path tube. Katsuro teaches that the inflow port 10 provided on the side wall of the housing 30 at the end does not intersect the central axis of the housing, and the fluid is swirled to increase the ultraviolet irradiation time (see Figs. 1-3; paragraphs [0026] - [0032]). It would have been obvious to a person of ordinary skill in the art to modify the fluid sterilization device of Hiroki in view of Koji to include inlet that does not intersect with a central axis of the flow path tube when viewed from an extending direction of the central axis of the flow path tube, such that a fluid flowing from the inlet forms a helical flow along an inner circumferential surface of the flow path tube to increase the ultraviolet irradiation time as suggested by Katsuro. Regarding claim 3, Hiroki teaches that the flow path tube 50 has a straight tube shape, the first light source unit 12 and the second light source unit 14 are disposed to face each other, the first light source unit 12 is positioned at a position intersecting with the first central axis when viewed from the extending direction of the central axis of the flow path tube and a direction orthogonal to the first central axis of the first inlet 22, and the second light source unit 14 is positioned at a position intersecting with the second central axis when viewed from the extending direction of the central axis of the flow path tube and a direction orthogonal to the second central axis of the second inlet 24 (see Figure 1). Allowable Subject Matter Claim 7 would be allowable if rewritten to overcome the rejection(s) under 35 U.S.C. 112(b) set forth in this Office action and to include 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 JOHN KIM whose telephone number is (571)272-1142. The examiner can normally be reached Maxi Flex. 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, INSUK BULLOCK can be reached at 571-272-5954. 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. /John Kim/Primary Examiner, Art Unit 1772 JK 9/19/26
Read full office action

Prosecution Timeline

Oct 28, 2024
Application Filed
Sep 23, 2026
Non-Final Rejection mailed — §103, §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
78%
Grant Probability
90%
With Interview (+11.5%)
2y 9m (~10m remaining)
Median Time to Grant
Low
PTA Risk
Based on 985 resolved cases by this examiner. Grant probability derived from career allowance rate.

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