Prosecution Insights
Last updated: April 19, 2026
Application No. 18/388,361

DISINFECTION REACTOR WITH SPIRAL FLOW

Non-Final OA §102
Filed
Nov 09, 2023
Examiner
GONZALEZ, MADELINE
Art Unit
1773
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Trojan Technologies Group Ulc
OA Round
1 (Non-Final)
72%
Grant Probability
Favorable
1-2
OA Rounds
3y 1m
To Grant
88%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allow Rate
583 granted / 805 resolved
+7.4% vs TC avg
Strong +16% interview lift
Without
With
+15.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
29 currently pending
Career history
834
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
43.0%
+3.0% vs TC avg
§102
27.9%
-12.1% vs TC avg
§112
21.2%
-18.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 805 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 Status Claims 1-5 are rejected. 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) 1-5 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Wong (US 6,657,205). With respect to claim 1, Wong discloses a fluid processor (apparatus), as shown in Fig. 2, having: a tube unit 1 (cylindrical housing), as shown in Fig. 2; an ultraviolet-radiation lamp 21 (light source), being attached to a first end or a second end of the housing 1, as shown in Fig. 2, and having a longitudinal axis parallel to a longitudinal axis of the housing 1, as shown in Fig. 2; an inlet being attached to the first end or the second end of the housing 1, as shown in the figure below, flow of fluid entering the apparatus through the inlet, as shown in Fig. 2; a diversion mechanism 3 (inlet diffusion tube) that is attached to the inlet and receives the flow of fluid from the inlet, as shown in the figure below, the inlet diffusion tube 3 including one or more channels 33 (slots) that the flow of the fluid travels through into the housing 1, as shown in Fig. 2; and an outlet being attached to the first end or the second end of the housing 1, as shown in the figure below, flow of the fluid out of the housing 1 flowing through the outlet, as shown in Fig. 2, wherein: the inlet 11 is located in an outer half of a radius of the housing 1, as shown in Fig. 2, the outlet and the light source 21 are located in an inner half of the radius of the housing 1, as shown in Fig. 2, and the one or more slots 33 of the inlet diffusion tube 3 faces a direction tangential to the housing 1 such that the flow of the fluid out of the one or more slots 33 creates a spiral flow path of the fluid in the housing 1 to the outlet (see col. 3, lines 51-67 and col. 4, lines 1-2). PNG media_image1.png 630 496 media_image1.png Greyscale With respect to claim 2, Wong discloses a fluid processor (apparatus), as shown in Fig. 2, having: a cylindrical housing 1 that has a cylindrical wall, a first end wall, and a second end wall, as shown in Fig. 2, the cylindrical housing 1 comprising: (i) an inlet 11 that directs the fluid flowing into the cylindrical housing 1 in a generally circumferential direction with respect to the cylindrical wall, as shown in Fig. 2; (ii) an mechanism 3 (outlet) through which the fluid exits the cylindrical housing 1, as shown in Fig. 2; and a light source 21 that extends along a longitudinal axis of the cylindrical housing 1 and is configured to direct light into the fluid when it is within the cylindrical housing 1 (see col. 3, lines 51-67 and col. 4, lines 1-2). With respect to claim 3, Wong discloses wherein the outlet 3 is located at the first end wall of the housing 1, as shown in Fig. 2. With respect to claim 4, Wong discloses wherein the light source 21 is located at the center of the housing 1 and extends from the first end wall of the housing 1 to the second end wall of the housing 1, as shown in Fig. 2. With respect to claim 5, Wong discloses wherein the light source 21 includes one or more channels 33 (apertures) that are connected to the outlet 3 so that the fluid flows through the apertures 33 and out of the outlet 3, as shown in Fig. 2. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MADELINE GONZALEZ whose telephone number is (571)272-5502. The examiner can normally be reached M-F 9-5:30. 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. /MADELINE GONZALEZ/Primary Examiner, Art Unit 1773
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Prosecution Timeline

Nov 09, 2023
Application Filed
Feb 04, 2026
Non-Final Rejection — §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
72%
Grant Probability
88%
With Interview (+15.6%)
3y 1m
Median Time to Grant
Low
PTA Risk
Based on 805 resolved cases by this examiner. Grant probability derived from career allow rate.

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