Prosecution Insights
Last updated: October 04, 2026

Chigenovo Co. Ltd.

Technology area: Biotechnology & Pharmaceuticals

5 pending office actions • 4 art units • 5 examiners • 0 of 5 (0%) have an AI response strategy ready • 1 patents granted in the last 365 days

Analysis

Chigenovo Co. Ltd. oversees a portfolio within the Biotechnology & Pharmaceuticals technology area, currently facing 5 pending office actions. These matters are assigned to 5 distinct examiners, ensuring that each active case is reviewed by a different 1 individual. This lack of examiner concentration suggests that the company's prosecution success is not tied to 1 person's review style.

The active cases are situated within 4 distinct art units, reflecting a range of technical subject matter. YU, DAVID TUYANG is the busiest examiner, holding 1 pending office action. With 5 total pending actions distributed across 4 art units, the company must navigate various administrative and technical standards. For a practitioner, this requires a flexible strategy that addresses the specific requirements of 4 different art units and the individual preferences of 5 examiners.

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

Portfolio Summary

5
Total Pending OAs
5
Non-Final OAs
0
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
1
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.

3
Hard (60%)
1
Medium (20%)
1
Easy (20%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 + other1 (20%)
§112 only1 (20%)
Double-patenting + other1 (20%)
Multi-statute (no §101)2 (40%)

Industry Mix

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

4
Life Sciences
80% 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
20% 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.

50 h
Manual time on pending OAs
10 h
Time saved (low, 20%)
18 h
Time saved (mid, 35%)
0.4 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
YU, DAVID TUYANG 1 100.0% +0.0%
DUNN, LINDSAY MICHELLE 1 80.0% +0.0%
WARD, AARON DUREL 1 — —
JADHAO, SAMADHAN JAISING 1 46.9% +46.2%
NOBLE, MARCIA STEPHENS 1 67.0% +39.9%

Quick Wins (1)

Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 1 ordered by deadline are shown.

App #TitleExaminerDue in
18360742 USE OF CYP4V2 AND RDCVF IN THE MANUFACTURE OF MEDICAMENT DUNN, LINDSAY MICHELLE 26d

Hard Cases (3)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 3 ordered by deadline are shown.

App #TitleExaminerDue in
18571164 PRPF31 VARIANT AND USES THEREOF YU, DAVID TUYANG —
18248523 NUCLEIC ACID MOLECULE FOR TREATING BIETTI CRYSTALLINE DYSTROPHY AND USE THEREOF WARD, AARON DUREL —
17756996 USE OF CYP4V2 AND RDCVF IN THE MANUFACTURE OF MEDICAMENT JADHAO, SAMADHAN JAISING —

Interview Candidates (2)

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 2 ordered by deadline are shown.

App #TitleExaminerDue in
17756996 USE OF CYP4V2 AND RDCVF IN THE MANUFACTURE OF MEDICAMENT JADHAO, SAMADHAN JAISING —
17996786 RHO-ADRP GENE EDITING-BASED METHODS AND COMPOSITIONS NOBLE, MARCIA STEPHENS —

Top Art Units

Art UnitApps
1644 1
1636 1
1672 1
1632 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18571164 PRPF31 VARIANT AND USES THEREOF YU, DAVID TUYANG — §103§112 Non-Final OA — Pending Dec 15, 2023
18360742 USE OF CYP4V2 AND RDCVF IN THE MANUFACTURE OF MEDICAMENT DUNN, LINDSAY MICHELLE 1644 §103DP Non-Final OA 26d Pending Jul 27, 2023
18248523 NUCLEIC ACID MOLECULE FOR TREATING BIETTI CRYSTALLINE DYSTROPHY AND USE THEREOF WARD, AARON DUREL 1636 §102§103§112 Non-Final OA — Pending Apr 10, 2023
17756996 USE OF CYP4V2 AND RDCVF IN THE MANUFACTURE OF MEDICAMENT JADHAO, SAMADHAN JAISING 1672 §101§103§112DPOther Non-Final OA — Pending Jan 24, 2023
17996786 RHO-ADRP GENE EDITING-BASED METHODS AND COMPOSITIONS NOBLE, MARCIA STEPHENS 1632 §112 Non-Final OA — Pending Oct 20, 2022

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