Prosecution Insights
Last updated: October 02, 2026
Application No. 18/392,826

DETECTION OF ANALYTES USING TARGETED EPIGENETIC ASSAYS, PROXIMITY-INDUCED TAGMENTATION, STRAND INVASION, RESTRICTION, OR LIGATION

Non-Final OA §112
Filed
Dec 21, 2023
Priority
Aug 11, 2021 — provisional 63/231,970 +2 more
Examiner
SWITZER, JULIET CAROLINE
Art Unit
1682
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Illumina Inc.
OA Round
1 (Non-Final)
42%
Grant Probability
Moderate
1-2
OA Rounds
11m
Est. Remaining
96%
With Interview

Examiner Intelligence

Grants 42% of resolved cases
42%
Career Allowance Rate
219 granted / 516 resolved
-17.6% vs TC avg
Strong +54% interview lift
Without
With
+54.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 8m
Avg Prosecution
43 currently pending
Career history
565
Total Applications
across all art units

Statute-Specific Performance

§101
20.0%
-20.0% vs TC avg
§103
22.9%
-17.1% vs TC avg
§102
15.1%
-24.9% vs TC avg
§112
31.7%
-8.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 516 resolved cases

Office Action

§112
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 without traverse of Group I in the reply filed on 7/15/2026 is acknowledged. Applicant further elected species, but upon search of the claim the election of species is WITHDRAWN. Claims 62 and 130 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected inventions, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 7/15/2026. Allowable Subject Matter Claims 1, 2, 20-22, 25-27, 31, 38-43, 46, 49-53, 55, 58, and 64 are allowed. Claims 3, 4, 6, 11, 15, 32, 33, and 61 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. The following is an examiner’s statement of reasons for allowance: The claims are free of the prior art. The prior art, for example Gong et al. had taught proximity assays where a donor recognition probe and an acceptor recognition probe were coupled to two parts of an analyte, and oligonucleotides attached to each were used to create a readable tag, and the prior art had taught multiplexing such an assay. See Figure 1, Gong et al., for example. In Gong et al, the reporter polynucleotide is created by extension of the first and second oligonucleotides. See Figure 1. A similar assay was known where the reporter polynucleotide was created using ligation, see Figure 1 of Lundberg et al. However, no reference taught or suggested using a transpose to create the reporter oligonucleotide. Although Fernandez et al. US 9938524 had taught an antibody coupled to transpose for tagging of chromatin, there was no suggestion or rational to modify the systems taught by Gong and Lundberg by using a transposition reaction to create the reporter polynucleotide. Thus, since all independent claims herein require this step, the claims are free of the prior art. Any comments considered necessary by applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance.” 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 3, 4, 6, 11, 15, 32, 33, and 61 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. In claims 3, 4, 6, 11, 15 it is unclear if the recitation of “the first molecule” refer to the first molecule in part (a) or part (b) of claim 2 from which claim 3 depends. The phrase lacks proper antecedent basis and thus renders the claims unclear. Claims 4, 6, 11, and 15 are unclear when reciting a CRISPR-associated protein that is “specific to a first subsequence of the polynucleotide” or “specific to the first target polynucleotide” because the CRISPR protein itself is not specific for a polynucleotide, it is the guide or crRNA that is specific for the polynucleotide. It is unclear if the claim is intended to refer to a protein alone specific to a polynucleotide or to a protein/RNA complex specific to the polynucleotide subsequence. In claim 32, “the fluid” in part (a) lacks proper antecedent basis because the claim does not previously recite “a fluid” or a first condition. This makes it unclear what is being referenced and what the condition of the fluid is supposed to be “second” to. In clam 32, “the blocker” in part (b) lacks proper antecedent basis. Claim 33 is indefinite also because it depends on claim 32. In claim 61, the phrase “the first and second forms of the first one of the analytes” lacks proper antecedent basis because claim 51 does not require first and second forms. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Juliet Switzer whose telephone number is (571)272-0753. The examiner can normally be reached Monday to Thursday, 8:00 AM-3:30 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, Winston Shen can be reached at (571)-272-3157. 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. Juliet Switzer Primary Examiner Art Unit 1682 /JULIET C SWITZER/Primary Examiner, Art Unit 1682
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Prosecution Timeline

Dec 21, 2023
Application Filed
Sep 22, 2026
Non-Final Rejection mailed — §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
42%
Grant Probability
96%
With Interview (+54.0%)
3y 8m (~11m remaining)
Median Time to Grant
Low
PTA Risk
Based on 516 resolved cases by this examiner. Grant probability derived from career allowance rate.

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