Prosecution Insights
Last updated: August 09, 2026

A2 Biotherapeutics, Inc.

6 pending office actions • 2 art units • 4 examiners • 0 of 6 (0%) have an AI response strategy ready • 5 patents granted in the last 365 days

Portfolio Summary

6
Total Pending OAs
5
Non-Final OAs
1
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 3 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

1
Overdue
0
Due this week
2
Due this month
0
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. 3 of the docket's apps have a known mailing date.

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

1
Hard (17%)
1
Medium (17%)
4
Easy (67%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§112 only4 (67%)
Double-patenting + other1 (17%)
Multi-statute (no §101)1 (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
TIWARI, VYOMA SHUBHAM 3 30.2% +46.7%
DUFFY, BRADLEY 1 54.6% +45.4%
WU, JULIE ZHEN QIN 1 61.5% +52.1%
CANELLA, KAREN A 1 62.2% +32.8%

Hard Cases (1)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 1 ordered by deadline are shown.

App #TitleExaminerDue in
18253721 ADOPTIVE CELL THERAPY FOR TREATMENT OF CANCER ASSOCIATED WITH LOSS OF HETEROZYGOSITY WU, JULIE ZHEN QIN 22d

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
18165623 COMPOSITIONS AND METHODS FOR TREATING EGFR POSITIVE CANCERS CANELLA, KAREN A 46d overdue
18253721 ADOPTIVE CELL THERAPY FOR TREATMENT OF CANCER ASSOCIATED WITH LOSS OF HETEROZYGOSITY WU, JULIE ZHEN QIN 22d
17480501 CONTROLLING PROXIMITY OF IMMUNE CELL RECEPTORS TIWARI, VYOMA SHUBHAM 22d
18553326 POLYPEPTIDES TARGETING HLA-A*11 AND METHODS OF USE THEREOF DUFFY, BRADLEY
17480476 ENGINEERED IMMUNE CELLS WITH MULTIPLEX AND LOCALIZED ACTIVITY TIWARI, VYOMA SHUBHAM
17480462 ENGINEERING IMMUNE CELLS BASED ON ANTIGEN LEVELS TIWARI, VYOMA SHUBHAM

Top Art Units

Art UnitApps
1643 3
1634 3

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18553326 POLYPEPTIDES TARGETING HLA-A*11 AND METHODS OF USE THEREOF DUFFY, BRADLEY 1643 §112 Non-Final OA Pending Sep 29, 2023
18253721 ADOPTIVE CELL THERAPY FOR TREATMENT OF CANCER ASSOCIATED WITH LOSS OF HETEROZYGOSITY WU, JULIE ZHEN QIN 1643 §102§103§112Other Non-Final OA 22d Pending May 19, 2023
18165623 COMPOSITIONS AND METHODS FOR TREATING EGFR POSITIVE CANCERS CANELLA, KAREN A 1643 §102§103§112DP Final Rejection 46d overdue Pending Feb 07, 2023
17480476 ENGINEERED IMMUNE CELLS WITH MULTIPLEX AND LOCALIZED ACTIVITY TIWARI, VYOMA SHUBHAM 1634 §112 Non-Final OA Pending Sep 21, 2021
17480501 CONTROLLING PROXIMITY OF IMMUNE CELL RECEPTORS TIWARI, VYOMA SHUBHAM 1634 §112 Non-Final OA 22d Pending Sep 21, 2021
17480462 ENGINEERING IMMUNE CELLS BASED ON ANTIGEN LEVELS TIWARI, VYOMA SHUBHAM 1634 §112 Non-Final OA Pending Sep 21, 2021

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