Prosecution Insights
Last updated: October 04, 2026

4Basebio UK Ltd.

Technology area: Biotechnology & Pharmaceuticals

3 pending office actions • 3 art units • 3 examiners • 0 of 3 (0%) have an AI response strategy ready

Analysis

4Basebio UK Ltd. currently has 2 pending office actions in the Biotechnology & Pharmaceuticals technology area. These matters are assigned to 2 distinct examiners. The portfolio is active across 2 distinct art units, which indicates that the 2 pending actions are being evaluated by different specialized examination groups. This use of 2 distinct art units for 2 pending actions suggests that the company's biotechnology applications are technically diverse.

DACE DENITO, ALEXANDRA GERALDINE is the busiest examiner for the company, responsible for 1 busiest examiner pending action. Because the 2 pending actions are split between 2 distinct examiners, the workload is balanced across the portfolio. The distribution across 2 distinct art units ensures that each of the 2 pending matters receives a specialized review from the assigned examiners. This structure reflects a spread of activity across different technical units within the biotechnology sector.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Portfolio Summary

3
Total Pending OAs
1
Non-Final OAs
1
Final Rejections
1
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 2 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

2
Overdue
0
Due this week
0
Due this month
0
Due in next 60 days
0
Due later

Case Difficulty Mix

Difficulty is derived from the rejection statutes on the most recent pending office action. §101-driven and multi-statute cases are graded Hard; §112-only and obviousness-type double-patenting cases are graded Easy; everything else is Medium. "Unknown" means we have not yet parsed a statute for that office action.

1
Hard (33%)
2
Medium (67%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
Double-patenting + other2 (67%)
Multi-statute (no §101)1 (33%)

Industry Mix

How the docket's pending cases split across USPTO tech-center bands.

3
Life Sciences
100% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
0
Mechanical / Eng
0% of docket
0
Business / Other
0% of docket

Time-on-OA Estimate

Manual office-action response work runs about 10 hours per case. The time-saved bands below show what IP Author's prosecution pipeline typically delivers — a conservative 20% on the low end, 35% in the middle, 50% on the high end.

30 h
Manual time on pending OAs
6 h
Time saved (low, 20%)
10 h
Time saved (mid, 35%)
0.3 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
DACE DENITO, ALEXANDRA GERALDINE 1 56.3% +40.2%
SCHLIENTZ, LEAH H 1 41.9% +38.5%
SCHLOOP, ALLISON ELIZABETH 1 63.0% +56.5%

Hard Cases (1)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 1 ordered by deadline are shown.

App #TitleExaminerDue in
18863312 Nanoparticles for Delivery of Nucleic Acid Cargos SCHLIENTZ, LEAH H 25d overdue

Interview Candidates (3)

Cases in front of an examiner whose interview lift is 10 percentage points or more — i.e. interviewed cases historically resolve more favorably than non-interviewed ones. The top 3 ordered by deadline are shown.

App #TitleExaminerDue in
18863312 Nanoparticles for Delivery of Nucleic Acid Cargos SCHLIENTZ, LEAH H 25d overdue
19054584 Linear DNA with Enhanced Resistance Against Exonucleases DACE DENITO, ALEXANDRA GERALDINE 3d overdue
18261083 Linear DNA With Enhanced Resistance Against Exonucleases and Methods for the Production Thereof SCHLOOP, ALLISON ELIZABETH —

Top Art Units

Art UnitApps
1636 1
1618 1
1693 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19054584 Linear DNA with Enhanced Resistance Against Exonucleases DACE DENITO, ALEXANDRA GERALDINE 1636 §103DP Final Rejection 3d overdue Pending Feb 14, 2025
18863312 Nanoparticles for Delivery of Nucleic Acid Cargos SCHLIENTZ, LEAH H 1618 §102§103 Non-Final OA 25d overdue Pending Nov 05, 2024
18261083 Linear DNA With Enhanced Resistance Against Exonucleases and Methods for the Production Thereof SCHLOOP, ALLISON ELIZABETH 1693 §103DP Non-Final OA — Pending Jul 11, 2023

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