Prosecution Insights
Last updated: July 17, 2026
Application No. 18/697,540

A UV GERMICIDAL TREATMENT SYSTEM FOR OF OPAQUE LIQUIDS

Non-Final OA §112
Filed
Apr 01, 2024
Priority
Oct 01, 2021 — DK PA202170485 +1 more
Examiner
TAI, XIUYU
Art Unit
1792
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Lyras Dk Aps
OA Round
1 (Non-Final)
59%
Grant Probability
Moderate
1-2
OA Rounds
1y 0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 59% of resolved cases
59%
Career Allowance Rate
599 granted / 1023 resolved
-6.4% vs TC avg
Strong +50% interview lift
Without
With
+49.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
35 currently pending
Career history
1048
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
70.5%
+30.5% vs TC avg
§102
2.3%
-37.7% vs TC avg
§112
13.1%
-26.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1023 resolved cases

Office Action

§112
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 . Election/Restrictions Applicant's election with traverse of Group I, encompassing claims 1-7, and 10, in the reply filed on 4/15/2026 is acknowledged. Applicant's election with traverse is acknowledged. The traversal is on the ground(s) that that the invention is novel by the underlined technical features. This is not found persuasive because a national stage application shall relate to one invention only or to a group of inventions so linked as to form a single general inventive concept (“requirement of unity of invention”). However, the groups of inventions do not relate to a single general inventive concept under PCT Rule 13.1 because, under PCT Rule 13.2, they lack the same or corresponding special technical features. The special technical feature linking the inventions does not provide a contribution over the prior art, such as shown in U.S. 4,400,270 and PG-PUB US 2020/0214306, and no single general inventive concept exists. Therefore, the restriction is appropriate. Furthermore, applicant must provide reasons in support the ground that the inventions have unity of invention (37 CFR 1.475(a)). Applicant may submit evidence or identify such evidence now of record showing the inventions to be obvious variants or clearly admit on the record that this is the case. Where such evidence or admission is provided by applicant, if the examiner finds one of the inventions unpatentable over the prior art, the evidence or admission may be used in a rejection under 35 U.S.C. 103(a) of the other invention. Moreover, applicants’ attention is drawn to the fact that the search for method claims requires the identification of processing steps while the search for apparatus claims requires the identification of structural elements, which introduces additional search and examination burden. The requirement is still deemed proper and is therefore made FINAL. 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. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 1-7, and 10 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claims 1 and 10 recite the limitation of “one or more UV sensors configured to monitor an UV output … and provide an output accordingly”. It is not clear (i) what “an output” is regarded; (ii) if “an UV output” is the same as or different from “an output” (e.g., there is insufficient antecedent basis for the limitation of “an output”); (iii) how “one or more UV sensor” could provide an output (e.g., a UV sensor is known for measuring/sensing/detecting UV light intensity from an UV emitting device); (iv) what “accordingly” is referred to. The same applies to the limitation of “at least one flow sensor, … and provide an output accordingly” in the claims. Appropriate correction/clarification is required. Claim 1 recites the limitation of “the one or more UV sensors directly or indirectly measure a UV light intensity substantially proportional to the UV light intensity illuminating the one or more spiral-shaped tubes”. It is not clear what parameter “the one or more UV sensors” measure (e.g., measuring UV light intensity from “one or more UV light source” or UV light intensity radiated onto the spiral-shaped tubes). Also, each of the claim does not define “a UV light intensity”. Thus, there is insufficient antecedent basis for the limitation of “the UV light intensity illuminating …”. Appropriate correction/clarification is required. Claim 4 recites the limitation of “the additional internal UV light sensors are configured to monitor an UV output … and provide an output accordingly”. It is not clear (i) what “an output” is regarded; (ii) if “an UV output related to …” is the same as or different from “an output” (e.g., there is insufficient antecedent basis for the limitation of “an output”); (iii) how “one or more UV sensor” could provide an output (e.g., a UV sensor is known for measuring/sensing/detecting UV light intensity from an UV emitting device); (iv) what “accordingly” is referred to. Appropriate correction/clarification is required. Claim 5 recites the limitation "the UV output related to …" in line 6. There is insufficient antecedent basis for this limitation in the claim. Appropriate correction/clarification is required. Due to the dependency to the parent claim, claims 2-7 are rejected. Conclusion Claims 1-7 and 10 are rejected. Claims 8-9, and 11-16 are withdrawn. Any inquiry concerning this communication or earlier communications from the examiner should be directed to XIUYU TAI whose telephone number is (571)270-1855. The examiner can normally be reached Mon.-Fri. 9:00-5:00. 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, Luan Van can be reached at 571-272-8521. 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. /XIUYU TAI/Primary Examiner, Art Unit 1795
Read full office action

Prosecution Timeline

Apr 01, 2024
Application Filed
Jun 26, 2026
Non-Final Rejection mailed — §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
59%
Grant Probability
99%
With Interview (+49.6%)
3y 3m (~1y 0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1023 resolved cases by this examiner. Grant probability derived from career allowance rate.

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