Prosecution Insights
Last updated: May 29, 2026

Eisai R&D Management Co. Ltd.

9 pending office actions • 7 art units • 9 examiners • 0 of 9 (0%) have an AI response strategy ready • 17 patents granted in the last 365 days

Portfolio Summary

9
Total Pending OAs
5
Non-Final OAs
4
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 8 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

5
Overdue
0
Due this week
2
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. 8 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (5)Due ≤ 30 days (2)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.

0
Hard (0%)
4
Medium (44%)
1
Easy (11%)
4
Unknown (44%)

Rejection Statute Mix

BucketCases
§103 only4 (44%)
§112 only1 (11%)
No statute on record4 (44%)

Industry Mix

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

9
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.

90 h
Manual time on pending OAs
18 h
Time saved (low, 20%)
31 h
Time saved (mid, 35%)
0.8 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
LADD, CAROLYN LOUISE 1 57.3% +47.1%
SIMMONS, CHRIS E 1 34.6% +19.5%
ROONEY, NORA MAUREEN 1 60.5% +23.2%
FETTEROLF, BRANDON J 1 49.5% +14.6%
OH, TAYLOR V 1 81.1% +15.4%
BERHANE, SELAM 1 61.3% +55.5%
TRAN, SUSAN T 1 62.8% +36.0%
BUTTICE, AUDREY L 1 45.8% +21.5%
JAVANMARD, SAHAR 1 65.3% +35.6%

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
18008304 THERAPEUTIC AGENT FOR BREAST CANCER FETTEROLF, BRANDON J 79d overdue
17757825 METHOD FOR PRODUCING ERIBULIN-BASED ANTIBODY-DRUG CONJUGATE BUTTICE, AUDREY L 37d overdue
17911040 TABLET, MEDICINE, METHODS FOR PRODUCING THESE, AND KIT TRAN, SUSAN T 30d overdue
17443650 METHODS OF TREATING CIRCADIAN RHYTHM SLEEP DISORDERS JAVANMARD, SAHAR 8d overdue
18058441 SYNTHESIS OF HALICHONDRINS OH, TAYLOR V 21d
18030207 PHARMACEUTICAL COMPOSITION FOR TREATING TUMORS LADD, CAROLYN LOUISE 28d
18188716 EZH2 INHIBITORS FOR TREATING LYMPHOMA SIMMONS, CHRIS E 42d

Top Art Units

Art UnitApps
1622 3
1641 1
1626 1
1625 1
1675 1
1615 1
1647 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18030207 PHARMACEUTICAL COMPOSITION FOR TREATING TUMORS LADD, CAROLYN LOUISE 1622 §112 Non-Final OA 28d Pending Apr 04, 2023
18188716 EZH2 INHIBITORS FOR TREATING LYMPHOMA SIMMONS, CHRIS E 1622 Other Non-Final OA 42d Pending Mar 23, 2023
18028039 PHARMACEUTICAL COMPOSITION ROONEY, NORA MAUREEN 1641 §103 Non-Final OA 133d overdue Pending Mar 23, 2023
18008304 THERAPEUTIC AGENT FOR BREAST CANCER FETTEROLF, BRANDON J 1626 Other Final Rejection 79d overdue Pending Dec 05, 2022
18058441 SYNTHESIS OF HALICHONDRINS OH, TAYLOR V 1625 Other Non-Final OA 21d Pending Nov 23, 2022
17906660 HIGH CONCENTRATION ANTI-Abeta PROTOFIBRIL ANTIBODY FORMULATIONS AND METHODS OF USE THEREOF BERHANE, SELAM 1675 §103 Final Rejection Pending Sep 19, 2022
17911040 TABLET, MEDICINE, METHODS FOR PRODUCING THESE, AND KIT TRAN, SUSAN T 1615 §103 Non-Final OA 30d overdue Pending Sep 12, 2022
17757825 METHOD FOR PRODUCING ERIBULIN-BASED ANTIBODY-DRUG CONJUGATE BUTTICE, AUDREY L 1647 Other Final Rejection 37d overdue Pending Jun 21, 2022
17443650 METHODS OF TREATING CIRCADIAN RHYTHM SLEEP DISORDERS JAVANMARD, SAHAR 1622 §103 Final Rejection 8d overdue Pending Jul 27, 2021

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