Prosecution Insights
Last updated: May 29, 2026

Sana Biotechnology Inc.

6 pending office actions • 5 art units • 6 examiners • 4 of 6 (67%) have an AI response strategy ready

Portfolio Summary

6
Total Pending OAs
2
Non-Final OAs
4
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 6 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
0
Due in next 60 days
2
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. 6 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (3)Due ≤ 30 days (1)Due later (2)

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%)
5
Medium (83%)
0
Easy (0%)
1
Unknown (17%)

Rejection Statute Mix

BucketCases
§103 only3 (50%)
§102 only2 (33%)
No statute on record1 (17%)

Industry Mix

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

6
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.

60 h
Manual time on pending OAs
12 h
Time saved (low, 20%)
21 h
Time saved (mid, 35%)
0.5 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
HASAN, KHALEDA B 1 58.6% +49.3%
EBBINGHAUS, BRIANA NOEL 1 57.4% +67.0%
HILL, KEVIN KAI 1 36.2% +33.4%
MCLEOD, AFRICA MHAIRIE 1 44.7% +68.6%
MCCORMICK, CATHERINE LYNN 1 46.9% +21.8%
BATES, KEENAN ALEXANDER 1 46.3% +70.8%

Interview Candidates (6)

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 6 ordered by deadline are shown.

App #TitleExaminerDue in
17632026 DUX4 EXPRESSING CELLS AND USES THEREOF BATES, KEENAN ALEXANDER 45d overdue
18031771 HEPATOCYTE-LIKE CELLS EBBINGHAUS, BRIANA NOEL 19d overdue
17792121 MODIFICATION OF BLOOD TYPE ANTIGENS MCLEOD, AFRICA MHAIRIE 4d overdue
18449625 GENETICALLY MODIFIED PRIMARY CELLS FOR ALLOGENEIC CELL THERAPY HASAN, KHALEDA B 19d
17637789 CD24 EXPRESSING CELLS AND USES THEREOF MCCORMICK, CATHERINE LYNN 63d
17997103 REPEAT DOSING OF HYPOIMMUNOGENIC CELLS HILL, KEVIN KAI 70d

Top Art Units

Art UnitApps
1638 2
1636 1
1632 1
1635 1
1631 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18449625 GENETICALLY MODIFIED PRIMARY CELLS FOR ALLOGENEIC CELL THERAPY HASAN, KHALEDA B 1636 §102 Final Rejection 19d Pending Aug 14, 2023
18031771 HEPATOCYTE-LIKE CELLS EBBINGHAUS, BRIANA NOEL 1632 §103 Non-Final OA 19d overdue AI Ready Apr 13, 2023
17997103 REPEAT DOSING OF HYPOIMMUNOGENIC CELLS HILL, KEVIN KAI 1638 §103 Non-Final OA 70d Pending Oct 25, 2022
17792121 MODIFICATION OF BLOOD TYPE ANTIGENS MCLEOD, AFRICA MHAIRIE 1635 §103 Final Rejection 4d overdue AI Ready Jul 11, 2022
17637789 CD24 EXPRESSING CELLS AND USES THEREOF MCCORMICK, CATHERINE LYNN 1638 §102 Final Rejection 63d AI Ready Feb 23, 2022
17632026 DUX4 EXPRESSING CELLS AND USES THEREOF BATES, KEENAN ALEXANDER 1631 Other Final Rejection 45d overdue AI Ready Feb 01, 2022

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