Prosecution Insights
Last updated: August 15, 2026
Application No. 18/265,366

IONIZABLE LIPIDS

Non-Final OA §112
Filed
Jun 05, 2023
Priority
Dec 23, 2020 — EU 20216879.5 +1 more
Examiner
CARR, DEBORAH D
Art Unit
1691
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Universiteit Gent
OA Round
1 (Non-Final)
82%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
85%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allowance Rate
874 granted / 1069 resolved
+21.8% vs TC avg
Minimal +3% lift
Without
With
+2.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
53 currently pending
Career history
1105
Total Applications
across all art units

Statute-Specific Performance

§101
5.2%
-34.8% vs TC avg
§103
32.5%
-7.5% vs TC avg
§102
23.6%
-16.4% vs TC avg
§112
27.0%
-13.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1069 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 . Election/Restrictions Applicant's election with traverse of the separation of Species I and Species II in the reply filed on 5 May 2026 is acknowledged. The traversal is on the ground(s) that the Species I and Species II share unity. This is found persuasive because and they two specie groups have been combine. Species III is considered to be withdrawn. The requirement is still deemed proper and is therefore made FINAL. 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. Claim 24 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 24 recites, “The ionizable lipid or claim 16, wherein both m and n are 2.” (Google Patents) The phrase “or claim 16” fails to clearly establish the relationship between claim 24 and claim 16. Specifically, use of the disjunctive term “or” renders it unclear whether claim 24 is intended to depend from claim 16 and incorporate all of the limitations thereof, or whether claim 24 is intended to recite an ionizable lipid as an alternative to the subject matter of claim 16. Consequently, it cannot be determined with reasonable certainty which structural limitations are incorporated into claim 24, and the metes and bounds of the claimed subject matter are unclear.
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Prosecution Timeline

Jun 05, 2023
Application Filed
Jul 20, 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
82%
Grant Probability
85%
With Interview (+2.8%)
2y 4m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1069 resolved cases by this examiner. Grant probability derived from career allowance rate.

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