Prosecution Insights
Last updated: October 25, 2026

Ac Immune SA

Technology area: Biotechnology & Pharmaceuticals

5 pending office actions • 5 art units • 5 examiners • 0 of 5 (0%) have an AI response strategy ready • 7 patents granted in the last 365 days

Analysis

Ac Immune SA has 6 pending office actions in Biotechnology & Pharmaceuticals. The matters are handled by 6 distinct examiners in 6 distinct art units. DONOHUE, SEAN R is the busiest examiner, with 1 pending matter, so the pending activity is distributed across separate examination channels.

The one-to-one examiner and art-unit pattern favors centralized docket oversight combined with application-level prosecution plans. Counsel should harmonize biotechnology and pharmaceutical terminology, but should not assume that one examiner’s treatment will apply across the portfolio. Each response can be reviewed for consistent support and claim architecture while addressing the particular cited record and procedural posture.

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

Portfolio Summary

5
Total Pending OAs
3
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
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
§102 only1 (20%)
§112 only1 (20%)
Multi-statute (no §101)3 (60%)

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
DONOHUE, SEAN R 1 41.4% +21.0%
KIM, YUNSOO 1 66.0% +34.0%
FETTEROLF, BRANDON J 1 51.6% +18.5%
LEE, CHIHYI NMN 1 33.3% +61.1%
MCCORMICK, CATHERINE LYNN 1 52.3% +39.8%

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
18708739 DIHYDROPYRROLO[3,4C]-PYRAZOLE DERIVATIVES AND THEIR USE IN DIAGNOSIS DONOHUE, SEAN R —
18650535 Anti-Abeta Therapeutic Vaccines KIM, YUNSOO —
18222115 NOVEL COMPOUNDS LEE, CHIHYI NMN —

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
18039840 Antibody Delivery MCCORMICK, CATHERINE LYNN 26d
18708739 DIHYDROPYRROLO[3,4C]-PYRAZOLE DERIVATIVES AND THEIR USE IN DIAGNOSIS DONOHUE, SEAN R —
18650535 Anti-Abeta Therapeutic Vaccines KIM, YUNSOO —
18227103 NOVEL COMPOUNDS FETTEROLF, BRANDON J —
18222115 NOVEL COMPOUNDS LEE, CHIHYI NMN —

Top Art Units

Art UnitApps
1618 1
1641 1
1626 1
1628 1
1638 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18708739 DIHYDROPYRROLO[3,4C]-PYRAZOLE DERIVATIVES AND THEIR USE IN DIAGNOSIS DONOHUE, SEAN R 1618 §103§112Other Non-Final OA — Pending May 09, 2024
18650535 Anti-Abeta Therapeutic Vaccines KIM, YUNSOO 1641 §102§103§112Other Non-Final OA — Pending Apr 30, 2024
18227103 NOVEL COMPOUNDS FETTEROLF, BRANDON J 1626 §112 Non-Final OA — Pending Jul 27, 2023
18222115 NOVEL COMPOUNDS LEE, CHIHYI NMN 1628 §102§103§112 Final Rejection — Pending Jul 14, 2023
18039840 Antibody Delivery MCCORMICK, CATHERINE LYNN 1638 §102 Final Rejection 26d Pending Jun 01, 2023

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Frequently Asked Questions

How many pending USPTO office actions does Ac Immune SA have?

Ac Immune SA has 5 pending office actions as of October 2026, spread across 5 art units and 5 examiners.

Which USPTO examiner handles the most Ac Immune SA applications?

Sean R Donohue has the most, with 1 of Ac Immune SA's pending office actions.

What technology area are Ac Immune SA's patent applications in?

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

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