Prosecution Insights
Last updated: October 25, 2026

Ono Pharmaceutical Co., Ltd.

Technology area: Biotechnology & Pharmaceuticals

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

Analysis

Ono Pharmaceutical Co., Ltd. has 5 pending office actions in Biotechnology & Pharmaceuticals. The matters involve 4 distinct examiners and 4 distinct art units, indicating that one examiner and one art unit handle more than one action while the remaining assignments are separate.

CHATTIN, AMY MARIE is the busiest examiner, with 2 pending actions. Those matters may benefit from coordinated review of claim language and response positions, while the other actions require examiner-specific preparation.

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

Portfolio Summary

4
Total Pending OAs
3
Non-Final OAs
1
Final Rejections
0
Advisory / Quayle

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 (75%)
1
Medium (25%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only1 (25%)
Multi-statute (no §101)3 (75%)

Industry Mix

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

4
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.

40 h
Manual time on pending OAs
8 h
Time saved (low, 20%)
14 h
Time saved (mid, 35%)
0.3 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
HUTTER, GILLIAN A 1 54.5% +46.0%
CHATTIN, AMY MARIE 1 72.2% +45.7%
SOROUSH, ALI 1 46.7% +30.9%
HADDAD, MAHER M 1 50.6% +53.8%

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
18744303 COMPOUNDS HAVING S1P5 RECEPTOR AGONISTIC ACTIVITY HUTTER, GILLIAN A —
18566424 CANCER TREATMENT METHOD BY COMBINED USE OF CD47 INHIBITORY SUBSTANCE, IMMUNE CHECKPOINT INHIBITORY SUBSTANCE, AND STANDARD THERAPY CHATTIN, AMY MARIE —
16753159 BISPECIFIC ANTIBODY HADDAD, MAHER M —

Interview Candidates (4)

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 4 ordered by deadline are shown.

App #TitleExaminerDue in
18744303 COMPOUNDS HAVING S1P5 RECEPTOR AGONISTIC ACTIVITY HUTTER, GILLIAN A —
18566424 CANCER TREATMENT METHOD BY COMBINED USE OF CD47 INHIBITORY SUBSTANCE, IMMUNE CHECKPOINT INHIBITORY SUBSTANCE, AND STANDARD THERAPY CHATTIN, AMY MARIE —
17925934 AGENT FOR PROTECTING AND/OR REGENERATING NEUROMUSCULAR JUNCTION SOROUSH, ALI —
16753159 BISPECIFIC ANTIBODY HADDAD, MAHER M —

Top Art Units

Art UnitApps
1625 1
1643 1
1614 1
1641 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18744303 COMPOUNDS HAVING S1P5 RECEPTOR AGONISTIC ACTIVITY HUTTER, GILLIAN A 1625 §102§112 Non-Final OA — Pending Jun 14, 2024
18566424 CANCER TREATMENT METHOD BY COMBINED USE OF CD47 INHIBITORY SUBSTANCE, IMMUNE CHECKPOINT INHIBITORY SUBSTANCE, AND STANDARD THERAPY CHATTIN, AMY MARIE 1643 §102§103§112 Non-Final OA — Pending Dec 01, 2023
17925934 AGENT FOR PROTECTING AND/OR REGENERATING NEUROMUSCULAR JUNCTION SOROUSH, ALI 1614 §103 Non-Final OA — Pending Nov 17, 2022
16753159 BISPECIFIC ANTIBODY HADDAD, MAHER M 1641 §103§112 Final Rejection — Pending Apr 02, 2020

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Frequently Asked Questions

How many pending USPTO office actions does Ono Pharmaceutical Co., Ltd. have?

Ono Pharmaceutical Co., Ltd. has 4 pending office actions as of October 2026, spread across 4 art units and 4 examiners.

Which USPTO examiner handles the most Ono Pharmaceutical Co., Ltd. applications?

Gillian A Hutter has the most, with 1 of Ono Pharmaceutical Co., Ltd.'s pending office actions.

What technology area are Ono Pharmaceutical Co., Ltd.'s patent applications in?

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

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