Prosecution Insights
Last updated: October 02, 2026

Nurix Therapeutics Inc.

Technology area: Biotechnology & Pharmaceuticals

5 pending office actions • 4 art units • 5 examiners • 0 of 5 (0%) have an AI response strategy ready • 6 patents granted in the last 365 days

Analysis

Nurix Therapeutics Inc. is currently managing 6 pending office actions within the Biotechnology & Pharmaceuticals technology area. These actions are distributed across 4 distinct art units, which indicates that the company's filings span several specialized technical groups within the patent office. The prosecution involves 6 distinct examiners, meaning that every pending action is currently being reviewed by a different individual. This high ratio of examiners to actions suggests a broad and decentralized prosecution landscape for the company.

CHEN, PO-CHIH is designated as the busiest examiner for the portfolio, currently holding 1 busiest examiner pending office action. Although CHEN, PO-CHIH is the busiest, the 1 busiest examiner pending action represents only a portion of the 6 pending office actions total. The fact that 6 distinct examiners are involved across 4 distinct art units suggests that the company must manage multiple distinct examiner styles. This distribution of 6 pending office actions requires a coordinated effort to maintain consistency across the Biotechnology & Pharmaceuticals portfolio.

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

Portfolio Summary

5
Total Pending OAs
4
Non-Final OAs
1
Final Rejections
0
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.

0
Overdue
0
Due this week
0
Due this month
2
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%)
§103 only1 (20%)
Double-patenting only1 (20%)
Multi-statute (no §101)2 (40%)

Industry Mix

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

5
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.

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
CHEN, PO-CHIH 1 74.2% +14.8%
LEESER, ERICH A 1 81.8% +13.3%
HUI, SAN MING R 1 59.5% +20.1%
GIERE, REBECCA M 1 73.7% +32.3%
HEITMEIER, KENDALL NICOLE 1 65.9% +41.0%

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
18579114 BIFUNCTIONAL COMPOUNDS FOR DEGRADING BTK WITH DIMINISHED IMID ACTIVITY LEESER, ERICH A 35d

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
17775265 BIFUNCTIONAL COMPOUNDS FOR GRADING BTK VIA UBIQUITIN PROTEOSOME PATHWAY HEITMEIER, KENDALL NICOLE 39d
18290920 BIFUNCTIONAL COMPOUNDS FOR DEGRADING BTK WITH ENHANCED IMID ACTIVITY CHEN, PO-CHIH —
18302603 BIOMARKERS FOR CBL, AND COMPOSITIONS AND METHODS FOR THEIR USE GIERE, REBECCA M —

Interview Candidates (5)

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 5 ordered by deadline are shown.

App #TitleExaminerDue in
18579114 BIFUNCTIONAL COMPOUNDS FOR DEGRADING BTK WITH DIMINISHED IMID ACTIVITY LEESER, ERICH A 35d
17775265 BIFUNCTIONAL COMPOUNDS FOR GRADING BTK VIA UBIQUITIN PROTEOSOME PATHWAY HEITMEIER, KENDALL NICOLE 39d
18290920 BIFUNCTIONAL COMPOUNDS FOR DEGRADING BTK WITH ENHANCED IMID ACTIVITY CHEN, PO-CHIH —
18289513 COMPOUNDS FOR INHIBITING OR DEGRADING ITK, COMPOSITIONS, COMPRISING THE SAME METHODS OF THEIR MAKING AND METHODS OF THEIR USE HUI, SAN MING R —
18302603 BIOMARKERS FOR CBL, AND COMPOSITIONS AND METHODS FOR THEIR USE GIERE, REBECCA M —

Top Art Units

Art UnitApps
1621 2
1622 1
1627 1
1677 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18290920 BIFUNCTIONAL COMPOUNDS FOR DEGRADING BTK WITH ENHANCED IMID ACTIVITY CHEN, PO-CHIH 1621 §103§112Other Non-Final OA — Pending Jan 22, 2024
18579114 BIFUNCTIONAL COMPOUNDS FOR DEGRADING BTK WITH DIMINISHED IMID ACTIVITY LEESER, ERICH A 1622 §103 Final Rejection 35d Pending Jan 12, 2024
18289513 COMPOUNDS FOR INHIBITING OR DEGRADING ITK, COMPOSITIONS, COMPRISING THE SAME METHODS OF THEIR MAKING AND METHODS OF THEIR USE HUI, SAN MING R 1627 DP Non-Final OA — Pending Nov 03, 2023
18302603 BIOMARKERS FOR CBL, AND COMPOSITIONS AND METHODS FOR THEIR USE GIERE, REBECCA M 1677 §101§112 Non-Final OA — Pending Jul 24, 2023
17775265 BIFUNCTIONAL COMPOUNDS FOR GRADING BTK VIA UBIQUITIN PROTEOSOME PATHWAY HEITMEIER, KENDALL NICOLE 1621 §103§112 Non-Final OA 39d Pending May 06, 2022

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