Prosecution Insights
Last updated: April 19, 2026
Application No. 18/440,513

METHOD AND SYSTEM FOR MEASURING THE POSITION OF A TRANSLATIONALLY MOVABLE ELEMENT OF A NUCLEAR REACTOR

Non-Final OA §102§103§112
Filed
Feb 13, 2024
Examiner
LUU, THANH X
Art Unit
2878
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Societe Technique Pour L'Energie Atomique
OA Round
1 (Non-Final)
78%
Grant Probability
Favorable
1-2
OA Rounds
2y 7m
To Grant
88%
With Interview

Examiner Intelligence

Grants 78% — above average
78%
Career Allow Rate
1051 granted / 1346 resolved
+10.1% vs TC avg
Moderate +10% lift
Without
With
+10.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
30 currently pending
Career history
1376
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
40.6%
+0.6% vs TC avg
§102
34.6%
-5.4% vs TC avg
§112
18.5%
-21.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1346 resolved cases

Office Action

§102 §103 §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. Claims 4-6 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. Regarding claim 4, it is unclear what values the variable P can take and what P refers to. Regarding claim 5, “the two auxiliary probes” lacks proper antecedent basis. Regarding claim 6, “the two auxiliary probes” lacks proper antecedent basis. 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, 2, 4, 11 is/are rejected under 35 U.S.C. 102a1 as being anticipated by Smith et al. (U.S. PGPUB 2007/0114370). Regarding claims 1, 11, Smith et al. disclose (Figs. 1, 2, 12) a system and a method for measuring position of a translationally movable element (12), the method comprising: emitting one optical signal by one emitter optical fiber (22) included in one probe (18), receiving the one optical signal by one track (Fig. 2 or Fig. 12, e.g. track 1), the track receiving one optical signal, the one track consisting of reflecting (light) and diffusing (dark) surfaces; receiving by one receiver optical fiber (24) an optical signal reflected by the one track and converting the optical signal received by the receiver optical fiber into binary code; where k, N and m are equal to 1. The terms “of a nuclear reactor” is intended use and is not given patentable weight. Since the same method steps and structure is disclosed by the prior art, it is “resistant to a primary medium” as claimed. Regarding claims 2, 4, an accuracy value inherently exists and depends on a length of the tracks divided by 2 or the total number of reflecting and diffusing surfaces 2P as claimed. 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. Claim(s) 15 is/are rejected under 35 U.S.C. 103 as being unpatentable over Smith et al. in view of Chang et al. (U.S. PGPUB 2017/0004893). Regarding claim 15, Smith et al. disclose the claimed invention as set forth above. Smith et al. do not disclose the movable element part of a nuclear reactor as claimed. Chang et al. teach (Figs.) providing a similar optical fiber measuring system in a nuclear reactor to measure the translation of a movable element. Thus, it would have been obvious to a person of ordinary skill in the art before the time of the effective filing of the invention to provide such method applied to a nuclear reactor in the method and apparatus of Smith et al. in view of Chang et al. to obtain more accurate position measurements in a nuclear environment as known and predictable. Allowable Subject Matter Claims 3, 5-10, 12-14 are objected to as being dependent upon a rejected base claim, but would be allowable once the 112 rejections are overcome and if rewritten in independent form including 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 THANH LUU whose telephone number is (571)272-2441. The examiner can normally be reached 9AM-5:30PM. 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, Georgia Epps can be reached at 571-272-2328. 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. /THANH LUU/Primary Examiner, Art Unit 2878
Read full office action

Prosecution Timeline

Feb 13, 2024
Application Filed
Mar 08, 2026
Non-Final Rejection — §102, §103, §112 (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
78%
Grant Probability
88%
With Interview (+10.1%)
2y 7m
Median Time to Grant
Low
PTA Risk
Based on 1346 resolved cases by this examiner. Grant probability derived from career allow rate.

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