Prosecution Insights
Last updated: October 25, 2026

Ionis Pharmaceuticals Inc.

Technology area: Biotechnology & Pharmaceuticals

24 pending office actions • 6 art units • 19 examiners • 0 of 24 (0%) have an AI response strategy ready • 18 patents granted in the last 365 days

Analysis

Ionis Pharmaceuticals Inc. has 22 pending office actions in Biotechnology & Pharmaceuticals. The matters span 18 examiners and 6 art units, creating a broad examination footprint that calls for docket coordination across multiple technical and procedural settings.

POLIAKOVA-GEORGAN, EKATERINA is the busiest examiner, with 3 pending matters. That assignment is the largest identified examiner workload, but it represents only part of the overall docket, so centralized tracking should preserve matter-specific strategies while monitoring recurring issues across the portfolio.

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

Portfolio Summary

24
Total Pending OAs
18
Non-Final OAs
6
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 10 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

9
Overdue
0
Due this week
1
Due this month
0
Due in next 60 days
0
Due later

Deadline Fire Line

Every pending office action with a known statutory deadline, placed on a days-until-due axis. Dots left of Today are overdue; the further right, the more runway. Cases that share a deadline window stack vertically. 10 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (9)Due ≤ 30 days (1)

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.

10
Hard (42%)
8
Medium (33%)
6
Easy (25%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only5 (21%)
§112 only4 (17%)
Double-patenting only2 (8%)
Double-patenting + other3 (12%)
Multi-statute (no §101)10 (42%)

Industry Mix

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

24
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.

240 h
Manual time on pending OAs
48 h
Time saved (low, 20%)
84 h
Time saved (mid, 35%)
2.1 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
POLIAKOVA-GEORGAN, EKATERINA 3 63.9% +18.1%
SHIN, DANA H 3 26.9% +26.9%
ARIETI, RUTH SOPHIA 2 46.2% +71.4%
VYAS, KEYUR ANILKUMAR 1 50.0% +58.7%
WHITEMAN, BRIAN A 1 68.4% +16.8%
VANHORN, ABIGAIL LOUISE 1 46.8% +22.7%
RYAN, DOUGLAS CHARLES 1 38.2% +48.4%
TATGE, LEXUS MARC 1 25.0% +100.0%
MEYERING, SHABANA SHABBEER 1 68.5% +45.1%
KONOPKA, CATHERINE ANNE 1 57.5% +66.2%

Hard Cases (13)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 8 ordered by deadline are shown.

App #TitleExaminerDue in
17998141 CONJUGATED OLIGONUCLEOTIDES AND USES THEREOF ROSSI, JULIA ANNE LORRAIN 67d overdue
17611780 ANGIOTENSIN II TYPE 1 RECEPTOR TARGETED OLIGONUCLEOTIDES AND USES THEREOF ARIETI, RUTH SOPHIA 60d overdue
18001241 COMPOUNDS AND METHODS FOR REDUCING MSH3 EXPRESSION SHIN, DANA H 30d overdue
18263194 COMPOUNDS AND METHODS FOR MODULATING HUNTINGTIN TATGE, LEXUS MARC 13d
18569084 MODULATION OF NOX4 EXPRESSION VANHORN, ABIGAIL LOUISE —
18448392 Selective Antisense Compounds and Uses Thereof SHIN, DANA H —
18264705 LINKAGE MODIFIED OLIGOMERIC COMPOUNDS AND USES THEREOF RYAN, DOUGLAS CHARLES —
18363244 Compounds and Methods for Modulating Splicing of Pre-MRNA SHIN, DANA H —

Interview Candidates (15)

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 8 ordered by deadline are shown.

App #TitleExaminerDue in
18443619 COMPOUNDS AND METHODS FOR REDUCING APP EXPRESSION VYAS, KEYUR ANILKUMAR 282d overdue
17611780 ANGIOTENSIN II TYPE 1 RECEPTOR TARGETED OLIGONUCLEOTIDES AND USES THEREOF ARIETI, RUTH SOPHIA 60d overdue
18001241 COMPOUNDS AND METHODS FOR REDUCING MSH3 EXPRESSION SHIN, DANA H 30d overdue
17372173 MODULATION OF APOLIPOPROTEIN C-III (APOCIII) EXPRESSION IN LIPOPROTEIN LIPASE DEFICIENT (LPLD) POPULATIONS POLIAKOVA-GEORGAN, EKATERINA 10d overdue
18262438 COMPOUNDS AND METHODS FOR REDUCING DUX4 EXPRESSION KONOPKA, CATHERINE ANNE 8d overdue
18247567 METHODS FOR REDUCING APOCIII EXPRESSION POLIAKOVA-GEORGAN, EKATERINA 4d overdue
18263194 COMPOUNDS AND METHODS FOR MODULATING HUNTINGTIN TATGE, LEXUS MARC 13d
18431253 Modulators of Complement Factor B WHITEMAN, BRIAN A —

Top Art Units

Art UnitApps
1637 9
1635 9
1636 3
1615 1
1634 1
1600 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18443619 COMPOUNDS AND METHODS FOR REDUCING APP EXPRESSION VYAS, KEYUR ANILKUMAR 1637 §103 Final Rejection 282d overdue Pending Feb 16, 2024
18431253 Modulators of Complement Factor B WHITEMAN, BRIAN A 1636 §112DP Non-Final OA — Pending Feb 02, 2024
18569084 MODULATION OF NOX4 EXPRESSION VANHORN, ABIGAIL LOUISE 1636 §102§103§112 Non-Final OA — Pending Dec 11, 2023
18457941 MODULATORS OF PNPLA3 EXPRESSION POLIAKOVA-GEORGAN, EKATERINA 1637 §112Other Non-Final OA — Pending Aug 29, 2023
18448392 Selective Antisense Compounds and Uses Thereof SHIN, DANA H 1635 DP Final Rejection — Pending Aug 11, 2023
18264705 LINKAGE MODIFIED OLIGOMERIC COMPOUNDS AND USES THEREOF RYAN, DOUGLAS CHARLES 1635 §103§112 Non-Final OA — Pending Aug 08, 2023
18363244 Compounds and Methods for Modulating Splicing of Pre-MRNA SHIN, DANA H 1635 §102§103§112Other Non-Final OA — Pending Aug 01, 2023
18263194 COMPOUNDS AND METHODS FOR MODULATING HUNTINGTIN TATGE, LEXUS MARC 1637 §103 Non-Final OA 13d Pending Jul 27, 2023
18358591 COMPOUNDS AND METHODS FOR MODULATING TMPRSS6 EXPRESSION MEYERING, SHABANA SHABBEER 1635 §102§103 Non-Final OA — Pending Jul 25, 2023
18262438 COMPOUNDS AND METHODS FOR REDUCING DUX4 EXPRESSION KONOPKA, CATHERINE ANNE 1635 §112 Final Rejection 8d overdue Pending Jul 21, 2023
18247567 METHODS FOR REDUCING APOCIII EXPRESSION POLIAKOVA-GEORGAN, EKATERINA 1637 §103Other Non-Final OA 4d overdue Pending Mar 31, 2023
18247311 COMPOUNDS FOR MODULATING CHMP7 GOMEZ RODRIGUEZ, JULIO WASHINGTON 1637 §102§103§112 Non-Final OA — Pending Mar 30, 2023
18001241 COMPOUNDS AND METHODS FOR REDUCING MSH3 EXPRESSION SHIN, DANA H 1635 §112 Final Rejection 30d overdue Pending Dec 08, 2022
17998141 CONJUGATED OLIGONUCLEOTIDES AND USES THEREOF ROSSI, JULIA ANNE LORRAIN 1615 §103§112 Final Rejection 67d overdue Pending Nov 07, 2022
17908135 COMPOUNDS AND METHODS FOR MODULATING KCNQ2 CHONG, KIMBERLY 1636 §102§103§112 Non-Final OA — Pending Aug 30, 2022
17850456 MODIFIED CRISPR RNA AND MODIFIED SINGLE CRISPR RNA AND USES THEREOF MARVICH, MARIA 1634 §102§112Other Non-Final OA — Pending Jun 27, 2022
17635096 MODIFIED OLIGOMERIC COMPOUNDS AND USES THEREOF VIVLEMORE, TRACY ANN 1600 §103 Non-Final OA — Pending Feb 14, 2022
17611780 ANGIOTENSIN II TYPE 1 RECEPTOR TARGETED OLIGONUCLEOTIDES AND USES THEREOF ARIETI, RUTH SOPHIA 1635 §103§112Other Non-Final OA 60d overdue Pending Nov 16, 2021
17508516 COMPOUNDS AND METHODS FOR REDUCING SPDEF EXPRESSION ZARA, JANE J 1637 §102§103§112 Non-Final OA — Pending Oct 22, 2021
17389599 MODULATION OF HEPATITIS B VIRUS (HBV) EXPRESSION ARIETI, RUTH SOPHIA 1635 DP Non-Final OA — Pending Jul 30, 2021
17424672 COMPOUNDS AND METHODS FOR REDUCING APP EXPRESSION PERSONS, JENNA L 1637 §102§103DP Non-Final OA 66d overdue Pending Jul 21, 2021
17372173 MODULATION OF APOLIPOPROTEIN C-III (APOCIII) EXPRESSION IN LIPOPROTEIN LIPASE DEFICIENT (LPLD) POPULATIONS POLIAKOVA-GEORGAN, EKATERINA 1637 §103 Final Rejection 10d overdue Pending Jul 09, 2021
17291199 COMPOSITIONS AND METHODS FOR TREATING AND PREVENTING AMYOTROPHIC LATERAL SCLEROSIS QIAN, CELINE X 1637 §112 Non-Final OA 4d overdue Pending May 04, 2021
17282335 MODIFIED OLIGOMERIC COMPOUNDS AND USES THEREOF SULLIVAN, STEPHANIE LAUREN 1635 §103§112DP Non-Final OA — Pending Apr 01, 2021

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Frequently Asked Questions

How many pending USPTO office actions does Ionis Pharmaceuticals Inc. have?

Ionis Pharmaceuticals Inc. has 24 pending office actions as of October 2026, spread across 6 art units and 19 examiners.

Which USPTO examiner handles the most Ionis Pharmaceuticals Inc. applications?

Ekaterina Poliakova-Georgan has the most, with 3 of Ionis Pharmaceuticals Inc.'s pending office actions.

What technology area are Ionis Pharmaceuticals 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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