Prosecution Insights
Last updated: August 14, 2026

Eisai R&D Management Co., Ltd.

12 pending office actions • 9 art units • 12 examiners • 0 of 12 (0%) have an AI response strategy ready • 16 patents granted in the last 365 days

Portfolio Summary

12
Total Pending OAs
7
Non-Final OAs
4
Final Rejections
1
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 5 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

3
Overdue
0
Due this week
1
Due this month
1
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. 5 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (3)Due ≤ 30 days (1)Due ≤ 60 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.

4
Hard (33%)
7
Medium (58%)
1
Easy (8%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only4 (33%)
§112 only1 (8%)
Double-patenting + other3 (25%)
Multi-statute (no §101)4 (33%)

Industry Mix

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

10
Life Sciences
83% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
1
Mechanical / Eng
8% of docket
1
Business / Other
8% 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.

120 h
Manual time on pending OAs
24 h
Time saved (low, 20%)
42 h
Time saved (mid, 35%)
1.1 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
GALSTER, SAMUEL LEONARD 1 52.3% +41.7%
CHEN, PO-CHIH 1 74.3% +14.4%
YOO, SUN JAE 1 71.0% +0.3%
LADD, CAROLYN LOUISE 1 57.0% +47.9%
ROONEY, NORA MAUREEN 1 60.2% +23.8%
SIMMONS, CHRIS E 1 34.5% +19.3%
BREDEFELD, RACHAEL EVA 1 27.5% +34.8%
ISMAIL, REHANA 1 77.3% +32.8%
BERHANE, SELAM 1 59.0% +55.8%
BUTTICE, AUDREY L 1 47.1% +26.0%

Hard Cases (5)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 5 ordered by deadline are shown.

App #TitleExaminerDue in
18028039 PHARMACEUTICAL COMPOSITION ROONEY, NORA MAUREEN 133d overdue
17757825 METHOD FOR PRODUCING ERIBULIN-BASED ANTIBODY-DRUG CONJUGATE BUTTICE, AUDREY L 37d overdue
19272275 POLYNUCLEOTIDE AND PRODUCING METHOD THEREOF GALSTER, SAMUEL LEONARD
18292743 METHOD FOR PRODUCING MONOCYCLIC PYRIDINE DERIVATIVE YOO, SUN JAE
18188249 APICOMPLEXAN PARASITE INHIBITION BREDEFELD, RACHAEL EVA

Interview Candidates (9)

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
18028039 PHARMACEUTICAL COMPOSITION ROONEY, NORA MAUREEN 133d overdue
17757825 METHOD FOR PRODUCING ERIBULIN-BASED ANTIBODY-DRUG CONJUGATE BUTTICE, AUDREY L 37d overdue
18030207 PHARMACEUTICAL COMPOSITION FOR TREATING TUMORS LADD, CAROLYN LOUISE 28d
18188716 EZH2 INHIBITORS FOR TREATING LYMPHOMA SIMMONS, CHRIS E 42d
19272275 POLYNUCLEOTIDE AND PRODUCING METHOD THEREOF GALSTER, SAMUEL LEONARD
18846909 PHARMACEUTICAL COMPOSITION FOR TREATMENT OF PARKINSON'S DISEASE CHEN, PO-CHIH
18188249 APICOMPLEXAN PARASITE INHIBITION BREDEFELD, RACHAEL EVA
18009115 METHODS FOR TREATING CANCER OR VON-HIPPEL LINDAU DISEASE USING A COMBINATION OF A HIF-2 ALPHA INHIBITOR AND LENVATINIB ISMAIL, REHANA

Top Art Units

Art UnitApps
1622 3
1693 1
1621 1
1641 1
3786 1
1625 1
1675 1
1647 1
1628 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19272275 POLYNUCLEOTIDE AND PRODUCING METHOD THEREOF GALSTER, SAMUEL LEONARD 1693 §103§112 Non-Final OA Pending Jul 17, 2025
18846909 PHARMACEUTICAL COMPOSITION FOR TREATMENT OF PARKINSON'S DISEASE CHEN, PO-CHIH §103 Non-Final OA Pending Sep 13, 2024
18292743 METHOD FOR PRODUCING MONOCYCLIC PYRIDINE DERIVATIVE YOO, SUN JAE 1621 §102§103 Non-Final OA Pending Jan 26, 2024
18030207 PHARMACEUTICAL COMPOSITION FOR TREATING TUMORS LADD, CAROLYN LOUISE 1622 §112 Non-Final OA 28d Pending Apr 04, 2023
18028039 PHARMACEUTICAL COMPOSITION ROONEY, NORA MAUREEN 1641 §103§112 Final Rejection 133d overdue Pending Mar 23, 2023
18188716 EZH2 INHIBITORS FOR TREATING LYMPHOMA SIMMONS, CHRIS E 1622 §103Other Non-Final OA 42d Pending Mar 23, 2023
18188249 APICOMPLEXAN PARASITE INHIBITION BREDEFELD, RACHAEL EVA 3786 §103DP Non-Final OA Pending Mar 22, 2023
18009115 METHODS FOR TREATING CANCER OR VON-HIPPEL LINDAU DISEASE USING A COMBINATION OF A HIF-2 ALPHA INHIBITOR AND LENVATINIB ISMAIL, REHANA 1625 §103DP Final Rejection Pending Dec 08, 2022
17906660 HIGH CONCENTRATION ANTI-Abeta PROTOFIBRIL ANTIBODY FORMULATIONS AND METHODS OF USE THEREOF BERHANE, SELAM 1675 §103 Final Rejection Pending Sep 19, 2022
17757825 METHOD FOR PRODUCING ERIBULIN-BASED ANTIBODY-DRUG CONJUGATE BUTTICE, AUDREY L 1647 §102§103Other Final Rejection 37d overdue Pending Jun 21, 2022
17757672 USE OF LEMBOREXANT FOR TREATING INSOMNIA MOU, LIYUAN 1628 §103DP Non-Final OA Pending Jun 17, 2022
17443650 METHODS OF TREATING CIRCADIAN RHYTHM SLEEP DISORDERS JAVANMARD, SAHAR 1622 §103Other Non-Final OA 8d overdue Pending Jul 27, 2021

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