Prosecution Insights
Last updated: July 17, 2026
Application No. 18/143,506

GENOME EDITING USING EFFECTOR OLIGONUCLEOTIDES FOR THERAPEUTIC TREATMENT

Non-Final OA §102§103
Filed
May 04, 2023
Priority
Mar 15, 2013 — provisional 61/801,822 +5 more
Examiner
BURKHART, MICHAEL D
Art Unit
1638
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Research Foundation To Cure Aids Inc.
OA Round
1 (Non-Final)
62%
Grant Probability
Moderate
1-2
OA Rounds
1m
Est. Remaining
74%
With Interview

Examiner Intelligence

Grants 62% of resolved cases
62%
Career Allowance Rate
516 granted / 826 resolved
+2.5% vs TC avg
Moderate +11% lift
Without
With
+11.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
38 currently pending
Career history
869
Total Applications
across all art units

Statute-Specific Performance

§101
3.8%
-36.2% vs TC avg
§103
34.9%
-5.1% vs TC avg
§102
10.6%
-29.4% vs TC avg
§112
22.3%
-17.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 826 resolved cases

Office Action

§102 §103
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 without traverse of Group IV and certain species in the reply filed on 6/4/2026 is acknowledged. Claims 1, 9, 21, 26, 27, 29, 32-34, 42, 46, 47, 51, 52, 54, 55 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected inventions, there being no allowable generic or linking claim.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 6/4/2026. 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) 32, 37-39, 45 is/are rejected under 35 U.S.C. 102(a)(1)as being anticipated by Del Campo et al (US 2011/0262406). Del Campo et al disclose cells, and methods of making such, comprising a target sequence altered with oligonucleotides comprising more than one mismatch. See Fig. 4 and ¶’s [0015] – [0029]. ). The deletion of 32-residue portion (i.e. 32) of CCR5 is taught by del Campo et al in Fig. 2 and ¶’s [0025], [0113]-[0116] and [0130]. The cells may be stem cells from human HIV patients (¶[0124]) which may be hematopoietic stem cells that express CD34 (¶[0125], [0028]). The change may be in one allele (¶[0096]). Claim Rejections - 35 USC § 103 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 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 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. The factual inquiries set forth in Graham v. John Deere Co., 383 U.S. 1, 148 USPQ 459 (1966), that are applied for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claims 35-39, 45, is/are rejected under 35 U.S.C. 103 as being unpatentable over Del Campo et al (US 2011/0262406) in view of Landau et al (US 6,057,102, of record). The teachings of del Campo et al are as above and applied as before. Del Campo et al do not teach the specific SEQ ID NO: 4. Landau et al teaches the 32 mutation in human CCR5 has the sequence of instant SEQ ID NO: 4 (SEQ ID NO: 1 of Landau et al, col. 6, lines 55-57). The claimed methods are essentially disclosed by del Campo et al with the exception of the SEQ ID NO: 4 limitation. The ordinary skilled artisan, seeking a method to prepare 32 CCR5 cells, would have been motivated to use the sequence of Landau et al with the methods of del Campo et al because Landau et al teaches SEQ ID NO: 1 to be the sequence deleted in human CCR5 that provides inhibition of viral replication. It would have been obvious for the skilled artisan to do this because of the known benefit of generating 32 CCR5 human cells for therapy as taught by del Campo et al. Given the teachings of the cited references and the level of skill of the ordinary skilled artisan at the time of applicants’ invention, it must be considered, absent evidence to the contrary, that the ordinary skilled artisan would have had a reasonable expectation of success in practicing the claimed invention. Conclusion No claim is allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Michael Burkhart whose telephone number is (571)272-2915. The examiner can normally be reached M-F 8-5. 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, Tracy Vivlemore can be reached at 571 272-2914. 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. /MICHAEL D BURKHART/Primary Examiner, Art Unit 1638
Read full office action

Prosecution Timeline

May 04, 2023
Application Filed
Jul 01, 2026
Non-Final Rejection mailed — §102, §103 (current)

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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
62%
Grant Probability
74%
With Interview (+11.1%)
3y 3m (~1m remaining)
Median Time to Grant
Low
PTA Risk
Based on 826 resolved cases by this examiner. Grant probability derived from career allowance rate.

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