Prosecution Insights
Last updated: October 02, 2026
Application No. 18/967,051

QUANTUM TOMOGRAPHY AND PHOTON SOURCE OPTIMIZATION

Non-Final OA §112
Filed
Dec 03, 2024
Priority
Jun 22, 2020 — provisional 63/042,405 +2 more
Examiner
LAVARIAS, ARNEL C
Art Unit
2872
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Psiquantum Corp.
OA Round
1 (Non-Final)
80%
Grant Probability
Favorable
1-2
OA Rounds
1y 0m
Est. Remaining
80%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allowance Rate
678 granted / 850 resolved
+11.8% vs TC avg
Minimal +0% lift
Without
With
+0.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
25 currently pending
Career history
859
Total Applications
across all art units

Statute-Specific Performance

§101
1.3%
-38.7% vs TC avg
§103
40.2%
+0.2% vs TC avg
§102
29.0%
-11.0% vs TC avg
§112
19.2%
-20.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 850 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 . Response to Amendment The cancellation of Claim 1 in the preliminary amendment filed 2/26/2025 is acknowledged and accepted. The addition of Claims 2-15 in the preliminary amendment filed 2/26/2025 is acknowledged and accepted. Priority Acknowledgment is made of applicant’s claim for priority under 35 U.S.C. 119 (e) and 120. Drawings The originally filed drawings were received on 12/3/2024. These drawings are objected to for the following reason(s) as set forth below. The drawings are objected to as failing to comply with 37 CFR 1.84(p)(5) because they do not include the following reference sign(s) mentioned in the description: Figure 2- Reference numerals 200, 205, 135 Figure 3- Reference numeral 207a Figure 6- Reference numeral 215c. Corrected drawing sheets in compliance with 37 CFR 1.121(d) are required in reply to the Office action to avoid abandonment of the application. Any amended replacement drawing sheet should include all of the figures appearing on the immediate prior version of the sheet, even if only one figure is being amended. Each drawing sheet submitted after the filing date of an application must be labeled in the top margin as either “Replacement Sheet” or “New Sheet” pursuant to 37 CFR 1.121(d). If the changes are not accepted by the examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance. Specification The lengthy specification has not been checked to the extent necessary to determine the presence of all possible minor errors. Applicant’s cooperation is requested in correcting any errors of which applicant may become aware in the specification. Examples of such errors are set forth below. The disclosure is objected to because of the following informalities: Paragraph 0050, line 10- ‘FIG. 2’ should read ‘FIG. 3’. Appropriate correction is required. 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 2-15 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. Claim 2 recites the limitation "the highest quality" in line 11. There is insufficient antecedent basis for this limitation in the claim. Claims 3-15 are dependent on Claim 2, and hence inherit the deficiencies of Claim 2. Allowable Subject Matter Claim 2 would be allowable if rewritten or amended to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action. Claims 3-15 would be allowable if rewritten to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action and to include all of the limitations of the base claim and any intervening claims. The following is a statement of reasons for the indication of allowable subject matter: Claim 2 is allowable over the cited art of record for at least the reason that the cited art of record fails to teach or reasonably suggest a method as generally set forth in Claim 2, the method including, in combination with the features recited in Claim 2, determining whether two or more herald photons are detected; if two or more herald photons are detected, determining a first signal photon having a highest quality among two or more signal photons, the two or more signal photons corresponding to the two or more herald photons; and routing the first signal photon to a resource state generator. Claims 3-15 are dependent on Claim 2, and hence are allowable for at least the same reasons Claim 2 is allowable. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. U.S. Patent Application Publication US 2011/0211244 A1 to Peters et al.- Arrayed heralded single-photon source for use in quantum cryptography and optical quantum computer applications. U.S. Patent Application Publication US 2014/0355998 A1 to Tanzilli et al.- Synchronized entanglement sources for use in quantum communications networks. U.S. Patent No. 11569919 to Wang- Parent patent disclosure to the instant application. U.S. Patent No. 12199683 to Wang- Parent patent disclosure to the instant application. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ARNEL C LAVARIAS whose telephone number is (571)272-2315. The examiner can normally be reached M-F 10:30 AM-7 PM. 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, Stephone Allen can be reached at 571-272-2434. 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. ARNEL C. LAVARIAS Primary Examiner Group Art Unit 2872 7/21/2026 /ARNEL C LAVARIAS/Primary Examiner, Art Unit 2872
Read full office action

Prosecution Timeline

Dec 03, 2024
Application Filed
Jul 30, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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2y 10m to grant Granted Sep 15, 2026
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2y 9m to grant Granted Sep 15, 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
80%
Grant Probability
80%
With Interview (+0.3%)
2y 10m (~1y 0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 850 resolved cases by this examiner. Grant probability derived from career allowance rate.

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