Prosecution Insights
Last updated: May 29, 2026
Application No. 18/010,759

CHEMOKINE-SELECTIVE CXCR4 ECTODOMAIN-DERIVED (POLY)PEPTIDE

Non-Final OA §112
Filed
Dec 15, 2022
Priority
Jun 16, 2020 — EU 20180269.1 +1 more
Examiner
YOUNG, MICAH PAUL
Art Unit
1618
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Technische Universität München
OA Round
1 (Non-Final)
55%
Grant Probability
Moderate
1-2
OA Rounds
2m
Est. Remaining
85%
With Interview

Examiner Intelligence

Grants 55% of resolved cases
55%
Career Allowance Rate
533 granted / 967 resolved
-4.9% vs TC avg
Strong +30% interview lift
Without
With
+30.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 7m
Avg Prosecution
42 currently pending
Career history
1020
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
83.6%
+43.6% vs TC avg
§102
3.1%
-36.9% vs TC avg
§112
0.9%
-39.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 967 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 . Information Disclosure Statement The information disclosure statement (IDS) submitted on 12/15/22 was filed in a timely manner. The submission is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. 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 1-12 and 16-18 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. A broad range or limitation together with a narrow range or limitation that falls within the broad range or limitation (in the same claim) may be considered indefinite if the resulting claim does not clearly set forth the metes and bounds of the patent protection desired. See MPEP § 2173.05(c). In the present instance, claim 1 recites the broad recitation linker has a length of 0.2 to 5 nm, and the claim also recites preferably 1 nm to 5 nm, more preferably 2 to 4 nm and most preferably 2.358 nm which is the narrower statement of the range/limitation. The claim(s) are considered indefinite because there is a question or doubt as to whether the feature introduced by such narrower language is (a) merely exemplary of the remainder of the claim, and therefore not required, or (b) a required feature of the claims. In the present instance, claim 2 recites the broad recitation linker comprises or consists of 1 to 8, and the claim also recites preferably 2 or 3 amino acids which is the narrower statement of the range/limitation. The claim(s) are considered indefinite because there is a question or doubt as to whether the feature introduced by such narrower language is (a) merely exemplary of the remainder of the claim, and therefore not required, or (b) a required feature of the claims. In the present instance, claim 5 recites the broad recitation linker comprises of 6-ahx-12-Ado or O2Oc-12-Ado, and the claim also recites preferably 6-Ahx-12-Ado which is the narrower statement of the range/limitation. The claim(s) are considered indefinite because there is a question or doubt as to whether the feature introduced by such narrower language is (a) merely exemplary of the remainder of the claim, and therefore not required, or (b) a required feature of the claims. In the present instance, claim 6 recites the broad recitation linker comprises three naturally-occurring amino acids, and the claim also recites preferably G, D, R, K, more preferably DDD and RRR which is the narrower statement of the range/limitation. The claim(s) are considered indefinite because there is a question or doubt as to whether the feature introduced by such narrower language is (a) merely exemplary of the remainder of the claim, and therefore not required, or (b) a required feature of the claims. In the present instance, claim 11 recites the broad recitation first peptide differing by no more than three, and the claim also recites preferably by no more than two, more preferably by one amino acid and most preferably zero amino acid mutations which is the narrower statement of the range/limitation. The claim(s) are considered indefinite because there is a question or doubt as to whether the feature introduced by such narrower language is (a) merely exemplary of the remainder of the claim, and therefore not required, or (b) a required feature of the claims. In the present instance, claim 18 recites the broad recitation wherein the tumor is cancer, and the claim also recites preferably metastatic cancer which is the narrower statement of the range/limitation. The claim(s) are considered indefinite because there is a question or doubt as to whether the feature introduced by such narrower language is (a) merely exemplary of the remainder of the claim, and therefore not required, or (b) a required feature of the claims. Claims 3, 4, 7-12, 16-18 and dependent on claim 1 and as such equally indefinite. As the meets and bounds of the claims cannot be further determined, clarification and amendment to the claims is required. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Zhang et al US 2015/0370960 discloses the peptide of claim 1 as SEQ ID NO 343 (claim 11). Blanchetot et al (US 2011/0206660) discloses the peptide of the instant claims, as SEQ ID NO 257 as PIG (Table B1). The peptide is used to treat cancers (claims). De Haard et al (US 2014/0286976 discloses linkers of multiple peptides of the instant claims. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MICAH PAUL YOUNG whose telephone number is (571)272-0608. The examiner can normally be reached Monday through Friday, 9:00 am to 5:30 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, Michael Hartley can be reached at 5712720616. 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. /MICAH PAUL YOUNG/ Primary Examiner, Art Unit 1618
Read full office action

Prosecution Timeline

Dec 15, 2022
Application Filed
Mar 30, 2026
Non-Final Rejection mailed — §112 (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
55%
Grant Probability
85%
With Interview (+30.1%)
3y 7m (~2m remaining)
Median Time to Grant
Low
PTA Risk
Based on 967 resolved cases by this examiner. Grant probability derived from career allowance rate.

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