Prosecution Insights
Last updated: October 25, 2026

Arsenal Biosciences, Inc.

Technology area: Biotechnology & Pharmaceuticals

2 pending office actions • 2 art units • 2 examiners • 0 of 2 (0%) have an AI response strategy ready • 1 patents granted in the last 365 days

Analysis

Arsenal Biosciences, Inc. is currently managing 2 pending office actions in the Biotechnology & Pharmaceuticals technology area. These filings are being reviewed by 2 distinct examiners, which indicates that the company's current prosecution efforts are not concentrated under a single individual. The workload is also divided between 2 distinct art units, suggesting that the underlying technologies fall into different specialized categories within the biotechnology sector.

The busiest examiner identified for the portfolio is YU, DELPHINUS DOU YI, who is handling 1 busiest examiner pending action. This accounts for 1 of the 2 pending office actions currently active for the company. With 2 distinct examiners and 2 distinct art units involved, the company must prepare for varied feedback and examination criteria. The strategy for resolving these 2 pending office actions will likely involve distinct technical arguments tailored to the specific requirements of each art unit. Practitioners should monitor the progress with YU, DELPHINUS DOU YI as a key component of the overall prosecution landscape.

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

Portfolio Summary

2
Total Pending OAs
2
Non-Final OAs
0
Final Rejections
0
Advisory / Quayle

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 (50%)
1
Medium (50%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only1 (50%)
Multi-statute (no §101)1 (50%)

Industry Mix

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

2
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.

20 h
Manual time on pending OAs
4 h
Time saved (low, 20%)
7 h
Time saved (mid, 35%)
0.2 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
YU, DELPHINUS DOU YI 1 33.3% +0.0%
YU, DAVID TUYANG 1 100.0% +0.0%

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
18308481 COMPOSITIONS AND METHODS OF GENOMIC MODIFICATION OF CELLS AND USES THEREOF YU, DAVID TUYANG —

Top Art Units

Art UnitApps
1636 1
1635 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18379912 NON-VIRAL HOMOLOGY MEDIATED END JOINING YU, DELPHINUS DOU YI 1636 §103 Non-Final OA — Pending Oct 13, 2023
18308481 COMPOSITIONS AND METHODS OF GENOMIC MODIFICATION OF CELLS AND USES THEREOF YU, DAVID TUYANG 1635 §102§103§112 Non-Final OA — Pending Apr 27, 2023

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Frequently Asked Questions

How many pending USPTO office actions does Arsenal Biosciences, Inc. have?

Arsenal Biosciences, Inc. has 2 pending office actions as of October 2026, spread across 2 art units and 2 examiners.

Which USPTO examiner handles the most Arsenal Biosciences, Inc. applications?

Delphinus Dou Yi Yu has the most, with 1 of Arsenal Biosciences, Inc.'s pending office actions.

What technology area are Arsenal Biosciences, Inc.'s patent applications in?

Mostly Biotechnology & Pharmaceuticals (USPTO Tech Center 1600), based on where its pending office actions are examined.

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