Prosecution Insights
Last updated: October 25, 2026

Wuxi Biologics Ireland Limited

Technology areas: Biotechnology & Pharmaceuticals • Chemistry & Materials

7 pending office actions • 7 art units • 7 examiners • 0 of 7 (0%) have an AI response strategy ready • 6 patents granted in the last 365 days

Analysis

Wuxi Biologics Ireland Limited has 8 pending office actions in Biotechnology & Pharmaceuticals. The matters involve 8 distinct examiners and 8 distinct art units, showing that each pending matter is associated with a separate examiner and art-unit combination in the available profile.

LEUNG, CHRISTINA Y is the busiest examiner, with 1 pending matter. No examiner accounts for a larger concentration of the current workload, so prosecution planning is driven primarily by individual case review rather than by a dominant examiner relationship.

The complete dispersion across examiners and art units makes docket coordination important. Counsel may benefit from maintaining consistent technical positions while tailoring amendments and interview preparation to each examination context. The data points to a distributed biotechnology prosecution profile.

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

Portfolio Summary

7
Total Pending OAs
5
Non-Final OAs
2
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 1 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

0
Overdue
0
Due this week
0
Due this month
1
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.

2
Hard (29%)
3
Medium (43%)
2
Easy (29%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§102 only1 (14%)
§112 only2 (29%)
Double-patenting + other2 (29%)
Multi-statute (no §101)2 (29%)

Industry Mix

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

6
Life Sciences
86% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
0
Mechanical / Eng
0% of docket
1
Business / Other
14% 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.

70 h
Manual time on pending OAs
14 h
Time saved (low, 20%)
24 h
Time saved (mid, 35%)
0.6 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
LEUNG, CHRISTINA Y 1 77.7% +1.5%
SIEFKE, SAMUEL P 1 63.0% +17.8%
GZYBOWSKI, MICHAEL STANLEY 1 67.6% +52.2%
BORGEEST, CHRISTINA M 1 55.7% +21.4%
HOWARD, ZACHARY C 1 63.9% +37.7%
VIJAYARAGHAVAN, JAGAMYA NMN 1 61.0% +51.0%
GUSTILO, ESTELLA M 1 53.6% +34.5%

Hard Cases (2)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 2 ordered by deadline are shown.

App #TitleExaminerDue in
19348335 RAMAN SPECTROSCOPY INTEGRATED PERFUSION CELL CULTURE SYSTEM FOR MONITORING AND AUTO-CONTROLLING PERFUSION CELLCULTURE LEUNG, CHRISTINA Y —
18292279 SYSTEM FOR EXPRESSION, PURIFICATION, AND DETECTION AND SCREENING OF BIOLOGICAL DRUGS GZYBOWSKI, MICHAEL STANLEY —

Interview Candidates (6)

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 6 ordered by deadline are shown.

App #TitleExaminerDue in
17572262 TRANSCRIPTIONAL REGULATORY ELEMENT AND ITS USE IN ENHANCING THE EXPRESSION OF HETEROLOGOUS PROTEIN VIJAYARAGHAVAN, JAGAMYA NMN 54d
18702286 SYSTEMS FOR THE EXTRACTION OF MACROMOLECULES SIEFKE, SAMUEL P —
18292279 SYSTEM FOR EXPRESSION, PURIFICATION, AND DETECTION AND SCREENING OF BIOLOGICAL DRUGS GZYBOWSKI, MICHAEL STANLEY —
18272548 POLYPEPTIDE COMPLEXES WITH IMPROVED STABILITY AND EXPRESSION BORGEEST, CHRISTINA M —
18265338 AN ANTIBODY AGAINST P-CADHERIN AND USES THEREOF HOWARD, ZACHARY C —
17425870 NOVEL BISPECIFIC CD3/CD20 POLYPEPTIDE COMPLEXES GUSTILO, ESTELLA M —

Top Art Units

Art UnitApps
3991 1
1758 1
1798 1
1675 1
1674 1
1633 1
1646 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19348335 RAMAN SPECTROSCOPY INTEGRATED PERFUSION CELL CULTURE SYSTEM FOR MONITORING AND AUTO-CONTROLLING PERFUSION CELLCULTURE LEUNG, CHRISTINA Y 3991 §103§112 Non-Final OA — Pending Oct 02, 2025
18702286 SYSTEMS FOR THE EXTRACTION OF MACROMOLECULES SIEFKE, SAMUEL P 1758 §102 Non-Final OA — Pending Apr 17, 2024
18292279 SYSTEM FOR EXPRESSION, PURIFICATION, AND DETECTION AND SCREENING OF BIOLOGICAL DRUGS GZYBOWSKI, MICHAEL STANLEY 1798 §102§103 Non-Final OA — Pending Jan 25, 2024
18272548 POLYPEPTIDE COMPLEXES WITH IMPROVED STABILITY AND EXPRESSION BORGEEST, CHRISTINA M 1675 §112DP Non-Final OA — Pending Jul 14, 2023
18265338 AN ANTIBODY AGAINST P-CADHERIN AND USES THEREOF HOWARD, ZACHARY C 1674 §112Other Final Rejection — Pending Jun 05, 2023
17572262 TRANSCRIPTIONAL REGULATORY ELEMENT AND ITS USE IN ENHANCING THE EXPRESSION OF HETEROLOGOUS PROTEIN VIJAYARAGHAVAN, JAGAMYA NMN 1633 §112Other Final Rejection 54d Pending Jan 10, 2022
17425870 NOVEL BISPECIFIC CD3/CD20 POLYPEPTIDE COMPLEXES GUSTILO, ESTELLA M 1646 §112DP Non-Final OA — Pending Jul 26, 2021

Managing Wuxi Biologics Ireland Limited's Patent Portfolio?

IP Author helps IP teams respond to office actions faster with AI-generated responses, examiner analytics, and prosecution intelligence.

Start Free Trial

Frequently Asked Questions

How many pending USPTO office actions does Wuxi Biologics Ireland Limited have?

Wuxi Biologics Ireland Limited has 7 pending office actions as of October 2026, spread across 7 art units and 7 examiners.

Which USPTO examiner handles the most Wuxi Biologics Ireland Limited applications?

Christina Y Leung has the most, with 1 of Wuxi Biologics Ireland Limited's pending office actions.

What technology area are Wuxi Biologics Ireland Limited's patent applications in?

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

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month