Prosecution Insights
Last updated: April 19, 2026
Application No. 19/172,890

DEVICE, SYSTEM AND METHOD FOR CURING A TUBE LINER

Non-Final OA §102§112
Filed
Apr 08, 2025
Examiner
SENGUPTA, SONYA MAZUMDAR
Art Unit
1745
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Per Aarsleff A/S
OA Round
1 (Non-Final)
68%
Grant Probability
Favorable
1-2
OA Rounds
3y 2m
To Grant
88%
With Interview

Examiner Intelligence

Grants 68% — above average
68%
Career Allow Rate
483 granted / 708 resolved
+3.2% vs TC avg
Strong +20% interview lift
Without
With
+20.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
16 currently pending
Career history
724
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
46.5%
+6.5% vs TC avg
§102
27.2%
-12.8% vs TC avg
§112
20.9%
-19.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 708 resolved cases

Office Action

§102 §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 . 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. Claim 19 is 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. Claim 19 recites the limitation "the portion of the tube liner" in line 3. There is insufficient antecedent basis for this limitation in the claim. 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 are rejected under 35 U.S.C. 102(a)(1) as being unpatentable by Slawomir (DK 201870118). Slawomir teaches a device for curing a tube liner comprising: a curing assembly (Fig. 3) configured to cure at least a portion of the tube liner, and an optical heater configured to heat the portion of the tube liner at least before and/or after curing, wherein the curing assembly comprises at least a first LED configured to emit electromagnetic radiation of a first wavelength, wherein the optical heater comprises at least a second LED configured to emit electromagnetic radiation of a second wavelength (paragraphs 0056-0057, and 0062), wherein the first wavelength is adjustably different from the second wavelength and may be in a range from 315 nm to 520 nm (paragraphs 0005 and 00112), and wherein the second wavelength is within a spectrum of yellow, orange, or red light (paragraph 0005). Claims 19 and 20 are rejected under 35 U.S.C. 102(a)(1) as being unpatentable by Slawomir (DK 201870118). Slawomir teaches a method for curing a tube liner with the device according to claim 1, the method comprising the steps of: curing a portion of the tube liner (paragraph 0005), and heating the portion of the tube liner to a preheating temperature before curing or to a post- curing temperature after curing (paragraph 00109). Allowable Subject Matter Claims 8-18 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. The prior art does not teach nor suggest: a distance between the curing assembly and the optical heater is selected based on at least one of a diameter of a pipe to be repaired, the first wavelength, and/or the second wavelength, so that a preheating temperature caused by the optical heater is maintained until curing is continued or triggered by the curing assembly. an optical heater is arranged in front of or after the curing assembly in a guide movement direction. a housing to protect the first LED and the second LED from the ingress of dust and/or water, wherein the curing assembly and the optical heater are arranged in the housing. a guiding device having a guiding engine including one or more electric motors, and a guiding line configured to cause, upon activation of the guiding engine, a guide movement of the optical heater and the curing assembly relative to the tube liner in a translational direction and/or to cause or allow a guide movement of the optical heater and the curing assembly relative to the tube liner in a rotational direction around the translational direction. a feedback temperature controller configured to control a temperature of the portion of the tube liner, so that a reference temperature, in particular including a predefined preheating temperature, post-curing temperature, and/or curing temperature, is reached. a feedback speed controller configured to control a speed of the optical heater relative to the tube liner of the optical heater and the curing assembly relative to the tube liner along a guide movement direction. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SONYA M SENGUPTA whose telephone number is (571)272-6019. The examiner can normally be reached Monday-Friday, 9:30am-5:00pm. 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, Philip Tucker can be reached at 571-272-1098. 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. /SONYA M SENGUPTA/Primary Examiner, Art Unit 1745
Read full office action

Prosecution Timeline

Apr 08, 2025
Application Filed
Nov 07, 2025
Response after Non-Final Action
Jan 05, 2026
Non-Final Rejection — §102, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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WAFER TRANSFER METHOD AND WAFER TRANSFER APPARATUS
2y 5m to grant Granted Apr 14, 2026
Patent 12595089
PEELING AND STICKING METHOD AND PROGRAM
2y 5m to grant Granted Apr 07, 2026
Patent 12589530
VEHICLE INTERIOR PANEL WITH NON-UNIFORM HARDNESS
2y 5m to grant Granted Mar 31, 2026
Patent 12589904
LABEL WRAPPING DEVICE INCLUDING INSERTION PART AND WRAPPING PART TO WRAP LABEL AROUND ADHEREND INSERTED IN INSERTION PART
2y 5m to grant Granted Mar 31, 2026
Patent 12590227
ADHESIVE PAPER AND ELECTROCHEMICAL APPARATUS AND ELECTRONIC APPARATUS CONTAINING SUCH ADHESIVE PAPER
2y 5m to grant Granted Mar 31, 2026
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
68%
Grant Probability
88%
With Interview (+20.1%)
3y 2m
Median Time to Grant
Low
PTA Risk
Based on 708 resolved cases by this examiner. Grant probability derived from career allow rate.

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