Prosecution Insights
Last updated: May 29, 2026

Daiichi Sankyo Company Limited

19 pending office actions • 11 art units • 15 examiners • 0 of 19 (0%) have an AI response strategy ready • 15 patents granted in the last 365 days

Portfolio Summary

19
Total Pending OAs
12
Non-Final OAs
6
Final Rejections
1
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 19 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

8
Overdue
1
Due this week
5
Due this month
4
Due in next 60 days
1
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. 19 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (8)Due ≤ 7 days (1)Due ≤ 30 days (5)Due ≤ 60 days (4)Due later (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%)
6
Medium (32%)
2
Easy (11%)
11
Unknown (58%)

Rejection Statute Mix

BucketCases
§103 only6 (32%)
§112 only2 (11%)
No statute on record11 (58%)

Industry Mix

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

19
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.

190 h
Manual time on pending OAs
38 h
Time saved (low, 20%)
66 h
Time saved (mid, 35%)
1.7 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
VAN DRUFF, SYDNEY 3 57.2% +28.5%
GALSTER, SAMUEL LEONARD 2 53.8% +39.1%
SKOKO III, JOHN JOSEPH 2 52.8% +58.4%
JUEDES, AMY E 1 44.5% +41.0%
LIU, TRACY 1 54.9% +28.0%
ANTHOPOLOS, PETER 1 57.2% +58.8%
MILLER, DALE R 1 62.3% +16.5%
PUTTLITZ, KARL J 1 69.1% +18.4%
TATGE, LEXUS MARC 1
ISMAIL, REHANA 1 78.9% +30.2%

Interview Candidates (13)

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
18016864 COMBINATION OF ANTI-HER2 ANTIBODY-DRUG CONJUGATE WITH HER DIMERIZATION INHIBITOR SKOKO III, JOHN JOSEPH 71d overdue
18767925 METHOD FOR PRODUCING AN ANTI-LAG-3 ANTIBODY JUEDES, AMY E 45d overdue
18272050 ANTI-DLL3 ANTIBODY-DRUG CONJUGATE PUTTLITZ, KARL J 36d overdue
17262590 EFFECTIVE METHOD FOR MANUFACTURING ANTIBODY-DRUG CONJUGATE VAN DRUFF, SYDNEY 2d overdue
18263124 NOVEL METHOD FOR PRODUCING ANTIBODY-IMMUNOSTIMULATOR CONJUGATE GALSTER, SAMUEL LEONARD 6d
18367446 METHOD OF TREATING CANCER COMPRISING ADMINISTRATION OF ANTI-HER2 ANTIBODY-DRUG CONJUGATE VAN DRUFF, SYDNEY 22d
18252838 COMPLEX OF BETA-GLUCAN AND NUCLEIC ACID HAVING CONTROLLED PARTICLE SIZE GALSTER, SAMUEL LEONARD 22d
17058838 TREATMENT OF HER2-MUTATED CANCER BY ADMINISTERING ANTI-HER2 ANTIBODY-DRUG CONJUGATE VAN DRUFF, SYDNEY 27d

Top Art Units

Art UnitApps
1643 5
1693 3
1614 2
1642 2
1644 1
1611 1
1646 1
1637 1
1625 1
1691 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18767925 METHOD FOR PRODUCING AN ANTI-LAG-3 ANTIBODY JUEDES, AMY E 1644 §112 Final Rejection 45d overdue Pending Jul 09, 2024
18708875 PHARMACEUTICAL COMPOSITION HAVING EXCELLENT DISSOLUTION PROPERTIES LIU, TRACY 1614 §103 Non-Final OA 62d Pending May 09, 2024
18561804 HPV INFECTIOUS DISEASE VACCINE ANTHOPOLOS, PETER 1611 Other Non-Final OA 46d Pending Nov 17, 2023
18367446 METHOD OF TREATING CANCER COMPRISING ADMINISTRATION OF ANTI-HER2 ANTIBODY-DRUG CONJUGATE VAN DRUFF, SYDNEY 1643 Other Non-Final OA 22d Pending Sep 12, 2023
18549797 NOVEL DEALKOXYPHENYLATION REACTION MILLER, DALE R 1693 Other Non-Final OA 33d Pending Sep 08, 2023
18263124 NOVEL METHOD FOR PRODUCING ANTIBODY-IMMUNOSTIMULATOR CONJUGATE GALSTER, SAMUEL LEONARD 1693 §103 Non-Final OA 6d Pending Jul 26, 2023
18272050 ANTI-DLL3 ANTIBODY-DRUG CONJUGATE PUTTLITZ, KARL J 1646 Other Non-Final OA 36d overdue Pending Jul 12, 2023
18265756 STABLE TARGET-EDITING GUIDE RNA TO WHICH CHEMICALLY MODIFIED NUCLEIC ACID IS INTRODUCED TATGE, LEXUS MARC 1637 §103 Non-Final OA 36d overdue Pending Jun 07, 2023
18252838 COMPLEX OF BETA-GLUCAN AND NUCLEIC ACID HAVING CONTROLLED PARTICLE SIZE GALSTER, SAMUEL LEONARD 1693 §103 Final Rejection 22d Pending May 12, 2023
18249421 METHOD OF PRODUCING 3-METHYL-4-HALO-INDOLE DERIVATIVE ISMAIL, REHANA 1625 §112 Non-Final OA 35d Pending Apr 18, 2023
18025896 A Scoring Method for an Anti-HER2 Antibody-Drug Conjugate Therapy LU, CHENG 1642 Other Non-Final OA 21d Pending Mar 11, 2023
18016864 COMBINATION OF ANTI-HER2 ANTIBODY-DRUG CONJUGATE WITH HER DIMERIZATION INHIBITOR SKOKO III, JOHN JOSEPH 1643 Other Non-Final OA 71d overdue Pending Jan 18, 2023
18012900 COMBINATION OF ANTIBODY-DRUG CONJUGATE AND ATM INHIBITOR STONEBRAKER, ALYSSA RAE 1642 Other Final Rejection 15d Pending Dec 23, 2022
17787760 FILM-COATED TABLETS HAVING SMOOTH SURFACE KNIGHT, SAMANTHA JO 1614 Other Final Rejection 32d overdue Pending Jun 21, 2022
17769483 METHOD FOR PRODUCING BICYCLIC PHOSPHORAMIDITE LEWIS, PATRICK T 1691 §103 Non-Final OA 139d overdue Pending Apr 15, 2022
17312084 COMBINATION OF ANTIBODY-DRUG CONJUGATE WITH PARP INHIBITOR SKOKO III, JOHN JOSEPH 1643 Other Final Rejection 54d Pending Jun 09, 2021
17262590 EFFECTIVE METHOD FOR MANUFACTURING ANTIBODY-DRUG CONJUGATE VAN DRUFF, SYDNEY 1643 §103 Non-Final OA 2d overdue Pending Jan 22, 2021
17058838 TREATMENT OF HER2-MUTATED CANCER BY ADMINISTERING ANTI-HER2 ANTIBODY-DRUG CONJUGATE VAN DRUFF, SYDNEY 1643 Other Final Rejection 27d Pending Nov 25, 2020
16640914 ANTIBODY-DRUG CONJUGATE PREPARATION AND LYOPHILIZATION FOR SAME KIM, YUNSOO 1641 Other Non-Final OA 81d overdue Pending Feb 21, 2020

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