Prosecution Insights
Last updated: April 19, 2026
Application No. 18/825,332

RESERVOIR INFLOW MONITORING

Final Rejection §102
Filed
Sep 05, 2024
Examiner
LEFF, ANGELA MARIE DITRAN
Art Unit
3674
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Resman AS
OA Round
2 (Final)
70%
Grant Probability
Favorable
3-4
OA Rounds
2y 11m
To Grant
83%
With Interview

Examiner Intelligence

Grants 70% — above average
70%
Career Allow Rate
719 granted / 1029 resolved
+17.9% vs TC avg
Moderate +13% lift
Without
With
+13.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
31 currently pending
Career history
1060
Total Applications
across all art units

Statute-Specific Performance

§101
1.3%
-38.7% vs TC avg
§103
40.3%
+0.3% vs TC avg
§102
20.0%
-20.0% vs TC avg
§112
27.2%
-12.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1029 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 . Election/Restrictions Applicant's election with traverse of Group I, claims 1-12, 19 and 20 in the reply filed on 01/15/26 is acknowledged. The traversal is on the grounds that a search for the subject matter of the claimed methods would necessarily encompass a search for the subject matter of claims 13-18, which are directed to systems for performing the method recited in claim 1-12, 19 and 20. This is not found persuasive because the inventions would encompass a different field of search including employing different search queries and the prior art applicable to, for example, the system, may not be applicable to the method and vice versa. For example, the system does not require production flow within the same well as the tracer and/or a component to sample the production flow and/or measure the concentration of the tracer therein. The system further does not require a means for calculating influx volume or contribution of flow. Thus, prior art applicable to the system would not necessarily be applicable to the method and vice versa. The requirement is still deemed proper and is therefore made FINAL. Drawings The drawings were received on 01/15/26. These drawings are accepted. Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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 19 is rejected under 35 U.S.C. 102(a)(1) as being anticipated by NYHAVN (US 2013/0245948 – cited previously). With respect to independent claim 19, NYHAVN discloses a method of collecting samples for later analysis in estimating an influx profile for at least one well fluid from a reservoir to a producing petroleum well with at least one influx zone to a production flow ([0057]); wherein the reservoir comprises distinct tracer molecules for each of the at least one influx zones ([0036] and [0058], wherein different tracers are installed at different locations); wherein the method comprises: inducing production flow in the well ([0059]); and collecting samples downstream of the at least one influx zone at known sampling times ([0060]). Terminal Disclaimer The terminal disclaimer filed on 01/15/26 disclaiming the terminal portion of any patent granted on this application which would extend beyond the expiration date of US Patent 12,110,787 has been reviewed and is accepted. The terminal disclaimer has been recorded. Response to Arguments Applicant’s arguments and amendments made with respect to the 35 USC 112(b) rejections, as set forth in the previous office action, have been fully considered and are persuasive. The 35 USC 112(b) rejections, as set forth therein, have been withdrawn. Applicant’s arguments with respect to the 35 USC 103 rejections of claims 1-12, 19 and 20, as unpatentable over Cullick in view of Nyhavn, as set forth in the previous office action, have been fully considered and are persuasive. The 35 USC 103 rejections as set forth therein have been withdrawn. However, upon further consideration and Applicant’s amendments to independent claim 19, a new grounds of rejection has been made with respect thereto Allowable Subject Matter Claims 1-12 are allowed. Claim 20 is 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. US 9,290,689 discloses a method wherein tracer sources are placed in respective subterranean locations and tracer substances are caused to flow out from the tracer particles while the particles are at the respective locations. The reference, however, fails to disclose, teach and/or suggest at least the isolation of an influx zone and/or the pumping of a fluid downhole to transport the tracer substances from the well and through the isolated influx zone into the reservoir as claimed. US 10,815,775 discloses the release of tracer molecules from tracer sources placed along a wellbore. The reference, however, fails to disclose, teach and/or suggest the isolation of an influx zone and pumping of a fluid downhole to transport the tracer molecules from the tracer sources into the reservoir as instantly claimed. Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Angela M DiTrani Leff whose telephone number is (571)272-2182. The examiner can normally be reached Monday-Friday, 9AM-5PM. 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, Doug Hutton can be reached at 5712724137. 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. /Angela M DiTrani Leff/Primary Examiner, Art Unit 3674 ADL 02/21/26
Read full office action

Prosecution Timeline

Sep 05, 2024
Application Filed
Jul 14, 2025
Non-Final Rejection — §102
Jan 15, 2026
Response Filed
Feb 23, 2026
Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12600900
ACIDIZING COMPOSITIONS FOR IMPROVED FLUID PERFORMANCE
2y 5m to grant Granted Apr 14, 2026
Patent 12584058
DRILLING FLUID WITH SELF-ADJUSTED ALKALINITY
2y 5m to grant Granted Mar 24, 2026
Patent 12577867
TREATMENT OF SUBTERRANEAN FORMATIONS
2y 5m to grant Granted Mar 17, 2026
Patent 12571303
TIME DEPENDENT TRACER RELEASE IN STIMULATED GAS WELLS USING COMPOSITE PARTICLES MADE OF TWO DIFFERENT THERMOPLASTIC POLYESTER BLENDS OF VARIOUS RATIOS
2y 5m to grant Granted Mar 10, 2026
Patent 12560063
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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
70%
Grant Probability
83%
With Interview (+13.1%)
2y 11m
Median Time to Grant
Moderate
PTA Risk
Based on 1029 resolved cases by this examiner. Grant probability derived from career allow rate.

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