Prosecution Insights
Last updated: August 18, 2026

Flagship Pioneering Inc.

51 pending office actions • 28 art units • 47 examiners • 0 of 51 (0%) have an AI response strategy ready • 18 patents granted in the last 365 days

Portfolio Summary

51
Total Pending OAs
25
Non-Final OAs
24
Final Rejections
2
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 25 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

14
Overdue
4
Due this week
4
Due this month
1
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. 25 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (14)Due ≤ 7 days (4)Due ≤ 30 days (4)Due ≤ 60 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.

26
Hard (51%)
18
Medium (35%)
7
Easy (14%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 only1 (2%)
§101 + other11 (22%)
§103 only11 (22%)
§112 only5 (10%)
Double-patenting only2 (4%)
Double-patenting + other7 (14%)
Multi-statute (no §101)14 (27%)

Industry Mix

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

46
Life Sciences
90% of docket
1
Information Tech
2% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
2
Mechanical / Eng
4% of docket
2
Business / Other
4% 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.

510 h
Manual time on pending OAs
102 h
Time saved (low, 20%)
178 h
Time saved (mid, 35%)
4.5 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
LEITH, NANCY J 2 74.7% +43.8%
DAUNER, JOSEPH G 2 56.8% +35.6%
KIM, TAEYOON 2 51.6% +51.8%
WHITEMAN, BRIAN A 2 68.4% +16.7%
TRAN, CHRISTINA L 1 48.2% +45.5%
HEIN, DEVIN C 1 46.0% +29.8%
ZHONG, WAYNESHAOBIN 1 72.5% +21.3%
HOLLOMAN, NANNETTE 1 60.5% +23.1%
SULLIVAN, STEPHANIE LAUREN 1 58.6% +39.6%
YU, MISOOK 1 38.9% +17.7%

Hard Cases (26)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 8 ordered by deadline are shown.

App #TitleExaminerDue in
19288411 MULTI-TIERED TESTING FOR TRACKING DISEASE HETEROGENEITY SKIBINSKY, ANNA 50d overdue
17756211 Protein Structure Prediction AUGER, NOAH ANDREW 36d overdue
18011832 ANTIVIRAL COMPOUNDS AND METHODS OF USING THE SAME SCHACHERMEYER, SAMANTHA LYNN 31d overdue
17433658 COMPOSITIONS, METHODS, AND KITS FOR DELIVERY OF POLYRIBONUCLEOTIDES KIM, TAEYOON 29d overdue
18945759 SYSTEMS AND METHODS FOR PATIENT TARGETED THERAPY DEVELOPMENT PAULS, JOHN A 23d overdue
18444227 COMPOSITIONS AND METHODS FOR MAKING AND USING AN IMMORTALIZED LIBRARY DAUNER, JOSEPH G 2d overdue
18154618 COMPOSITIONS FOR FACILITATING MEMBRANE FUSION AND USES THEREOF LIU, TRACY 5d
17929124 METHODS AND COMPOSITIONS FOR MODULATING A GENOME LEE, JAE W 6d

Interview Candidates (14)

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
19272711 METHODS AND COMPOSITIONS FOR MODULATING A GENOME LEITH, NANCY J 89d overdue
19272775 METHODS AND COMPOSITIONS FOR MODULATING A GENOME LEITH, NANCY J 86d overdue
17433658 COMPOSITIONS, METHODS, AND KITS FOR DELIVERY OF POLYRIBONUCLEOTIDES KIM, TAEYOON 29d overdue
18444227 COMPOSITIONS AND METHODS FOR MAKING AND USING AN IMMORTALIZED LIBRARY DAUNER, JOSEPH G 2d overdue
17795943 DELIVERY OF COMPOSITIONS COMPRISING CIRCULAR POLYRIBONUCLEOTIDES WHITEMAN, BRIAN A 6d
18038630 ADIPOGENIC CELL COMPOSITIONS AND METHODS KIM, TAEYOON 13d
18362410 IMMUNOMODULATORY PROTEINS AND RELATED METHODS YU, MISOOK 21d
18474060 COMPOSITIONS AND METHODS FOR MAKING AND USING AN IMMORTALIZED LIBRARY DAUNER, JOSEPH G 70d

Top Art Units

Art UnitApps
1636 7
1635 5
1631 4
1637 3
1682 3
1671 2
1656 2
1638 2
1634 2
3686 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19535829 DNA COMPOSITIONS AND RELATED METHODS TRAN, CHRISTINA L 1637 §103DP Non-Final OA Pending Feb 10, 2026
18889904 SYSTEMS AND METHODS FOR DESIGNING AND CONDUCTING CLINICAL TRIALS AND BIOMARKER VALIDATION STUDIES HEIN, DEVIN C 3686 §101§102§103 Non-Final OA Pending Sep 19, 2024
18730112 POLYNUCLEOTIDES FOR MODIFYING ORGANISMS ZHONG, WAYNESHAOBIN 1662 §103§112 Non-Final OA Pending Jul 18, 2024
18440188 CLEAVABLE LINKER-CONTAINING IONIZABLE LIPIDS AND LIPID CARRIERS FOR THERAPEUTIC COMPOSITIONS HOLLOMAN, NANNETTE 1612 §102§103 Non-Final OA Pending Feb 13, 2024
18283242 PRODUCTION OF CIRCULAR POLYRIBONUCLEOTIDES IN A EUKARYOTIC SYSTEM SULLIVAN, STEPHANIE LAUREN 1635 DP Non-Final OA Pending Sep 21, 2023
18362410 IMMUNOMODULATORY PROTEINS AND RELATED METHODS YU, MISOOK 1641 DP Final Rejection 21d Pending Jul 31, 2023
19303663 METHODS AND COMPOSITIONS FOR THE MODIFICATION OF PLANTS KEOGH, MATTHEW R 1663 §103§112 Non-Final OA Pending Aug 19, 2025
19288411 MULTI-TIERED TESTING FOR TRACKING DISEASE HETEROGENEITY SKIBINSKY, ANNA 1635 §101§103 Non-Final OA 50d overdue Pending Aug 01, 2025
19287202 MULTIPLE-TIERED SCREENING AND DIAGNOSTIC ANALYSIS LIN, JERRY 1685 §101§102§112 Non-Final OA Pending Jul 31, 2025
19272775 METHODS AND COMPOSITIONS FOR MODULATING A GENOME LEITH, NANCY J 1636 §103Other Final Rejection 86d overdue Pending Jul 17, 2025
19272711 METHODS AND COMPOSITIONS FOR MODULATING A GENOME LEITH, NANCY J 1636 §103Other Final Rejection 89d overdue Pending Jul 17, 2025
18945759 SYSTEMS AND METHODS FOR PATIENT TARGETED THERAPY DEVELOPMENT PAULS, JOHN A 3683 §101§103§112Other Final Rejection 23d overdue Pending Nov 13, 2024
18712809 IMMUNOGENIC COMPOSITIONS AND THEIR USES GILL, RACHEL B §101§102§103§112DP Non-Final OA Pending May 23, 2024
18590275 HBB-MODULATING COMPOSITIONS AND METHODS MEYERING, SHABANA SHABBEER 1635 §103Other Final Rejection Pending Feb 28, 2024
18687661 METHODS AND COMPOSITIONS FOR INDUCING FETAL HEMOGLOBIN, MODULATING ERYTHROID CELL LINEAGES, AND PERTURBING MEGAKARYOCYTE LINEAGES BARRON, SEAN C 1653 §102§112DP Non-Final OA Pending Feb 28, 2024
18444227 COMPOSITIONS AND METHODS FOR MAKING AND USING AN IMMORTALIZED LIBRARY DAUNER, JOSEPH G 1682 §103§112 Final Rejection 2d overdue Pending Feb 16, 2024
18561964 METHODS OF ENRICHING FOR CIRCULAR POLYRIBONUCLEOTIDES RAVINDRA, KRISHNA NUGGEHALLI §112 Non-Final OA Pending Nov 17, 2023
18561922 METHODS OF ENRICHING FOR CIRCULAR POLYRIBONUCLEOTIDES YU, DAVID TUYANG 1635 §102§103 Non-Final OA Pending Nov 17, 2023
18554139 COMPOSITIONS AND METHODS FOR DELIVERY OF THERAPEUTIC AGENTS TO ACCEPTOR CELLS LEONARD, ARTHUR S 1631 §101§102§103DP Non-Final OA Pending Oct 05, 2023
18474060 COMPOSITIONS AND METHODS FOR MAKING AND USING AN IMMORTALIZED LIBRARY DAUNER, JOSEPH G 1682 §103§112DPOther Non-Final OA 70d Pending Sep 25, 2023
18282644 LTR TRANSPOSON COMPOSITIONS AND METHODS SINGH, ANOOP KUMAR 1632 §103§112 Non-Final OA Pending Sep 18, 2023
18269450 COMPOSITIONS OF MODIFIED TREMS AND USES THEREOF YU, DELPHINUS DOU YI 1636 §102§103§112Other Non-Final OA Pending Jun 23, 2023
18038630 ADIPOGENIC CELL COMPOSITIONS AND METHODS KIM, TAEYOON 1631 §101§102§112 Non-Final OA 13d Pending May 24, 2023
18024542 IMMUNOGENIC COMPOSITIONS AND USES THEREOF FOLEY, SHANON A 1671 §103§112 Final Rejection 22d Pending Mar 03, 2023
18173049 INTRA-INDIVIDUAL ANALYSIS FOR PRESENCE OF HEALTH CONDITIONS TURPIN, ZACHARY MARK 1682 §101DP Final Rejection Pending Feb 22, 2023
18011832 ANTIVIRAL COMPOUNDS AND METHODS OF USING THE SAME SCHACHERMEYER, SAMANTHA LYNN 1693 §101§102§103 Final Rejection 31d overdue Pending Dec 20, 2022
18061632 TEMPLATE GUIDE RNA MOLECULES ZARA, JANE J 1637 §102§103§112 Non-Final OA Pending Dec 05, 2022
17926254 COMPOSITIONS AND METHODS FOR PRODUCING HUMAN POLYCLONAL ANTIBODIES OUSPENSKI, ILIA I 1644 §102DP Non-Final OA Pending Nov 18, 2022
17925920 CORONAVIRUS ANTIGEN COMPOSITIONS AND THEIR USES BUCKMASTER, MARLENE VRENI 1672 §103 Final Rejection 10d overdue Pending Nov 17, 2022
17925966 IMMUNOGENIC COMPOSITIONS AND USES THEREOF HILL, MYRON G 1671 §103DP Final Rejection Pending Nov 17, 2022
17914307 BIFUNCTIONAL MOLECULES AND METHODS OF USING THEREOF WHITEMAN, BRIAN A 1636 §103DPOther Non-Final OA Pending Sep 23, 2022
17929124 METHODS AND COMPOSITIONS FOR MODULATING A GENOME LEE, JAE W 1656 §103§112 Non-Final OA 6d Pending Sep 01, 2022
17795939 COMPOSITIONS COMPRISING LINEAR POLYRIBONUCLEOTIDES FOR PROTEIN MODULATION AND USES THEREOF JONES-FOSTER, ERICA NICOLE 1656 §103§112 Non-Final OA Pending Jul 28, 2022
17795943 DELIVERY OF COMPOSITIONS COMPRISING CIRCULAR POLYRIBONUCLEOTIDES WHITEMAN, BRIAN A 1636 §103Other Final Rejection 6d Pending Jul 28, 2022
17756211 Protein Structure Prediction AUGER, NOAH ANDREW 1687 §101§103§112 Final Rejection 36d overdue Pending May 19, 2022
17597844 MACHINE LEARNING GUIDED POLYPEPTIDE DESIGN DARRIGRAND, EMILY ANN 1686 §101§103§112 Non-Final OA Pending Jan 26, 2022
17577942 RECOMBINASE COMPOSITIONS AND METHODS OF USE MCLEOD, AFRICA MHAIRIE 1635 §112 Final Rejection 21d Pending Jan 18, 2022
17433655 POLYRIBONUCLEOTIDES AND COSMETIC USES THEREOF LIPPOLIS, ALEXANDRA ROSE 1637 §103Other Final Rejection 31d overdue Pending Aug 25, 2021
17433658 COMPOSITIONS, METHODS, AND KITS FOR DELIVERY OF POLYRIBONUCLEOTIDES KIM, TAEYOON 1631 §102§103Other Final Rejection 29d overdue Pending Aug 25, 2021
17428356 MACHINE LEARNING GUIDED POLYPEPTIDE ANALYSIS PRESSLY, KURT NICHOLAS 2125 §101 Final Rejection Pending Aug 04, 2021
17262591 COMPOSITIONS COMPRISING CIRCULAR POLYRIBONUCLEOTIDES AND USES THEREOF ZAHORIK, AMANDA MARY 1636 §103§112 Final Rejection 7d Pending Jan 22, 2021
18257483 COMPOSITIONS AND METHODS FOR MODULATING MYC EXPRESSION COFFA, SERGIO 1658 §112DP Non-Final OA Pending Jun 14, 2023
18201882 MULTIBIOTIC AGENTS AND METHODS OF USING THE SAME LEE, WILLIAM Y 1623 §112 Non-Final OA Pending May 25, 2023
18154618 COMPOSITIONS FOR FACILITATING MEMBRANE FUSION AND USES THEREOF LIU, TRACY 1614 §103§112 Non-Final OA 5d Pending Jan 13, 2023
18010674 METHODS OF IDENTIFYING AND CHARACTERIZING ANELLOVIRUSES AND USES THEREOF KELLY, ROBERT M 1638 §112 Final Rejection 69d Pending Dec 15, 2022
18009476 BACULOVIRUS EXPRESSION SYSTEMS THUESON, HANNA MARIE 1638 §103 Final Rejection 114d overdue Pending Dec 09, 2022
17413297 ANELLOSOMES FOR DELIVERING PROTEIN REPLACEMENT THERAPEUTIC MODALITIES DACE DENITO, ALEXANDRA GERALDINE 1636 §103Other Final Rejection 45d overdue Pending Jun 11, 2021
17293797 FUSOSOME COMPOSITIONS FOR HEMATOPOIETIC STEM CELL DELIVERY SMALL, KATHERINE R 1633 §103 Final Rejection 57d Pending May 13, 2021
17218025 TARGETED LIPID PARTICLES AND COMPOSITIONS AND USES THEREOF TIWARI, VYOMA SHUBHAM 1634 §103 Non-Final OA Pending Mar 30, 2021
17055077 FUSOSOME COMPOSITIONS AND USES THEREOF MIANO, JOSEPH PAUL 1631 §103Other Final Rejection 15d overdue Pending Nov 12, 2020
16970216 COMPOSITIONS AND METHODS FOR MEMBRANE PROTEIN DELIVERY RIGA, MICHAEL ANGELO 1634 §112 Final Rejection 28d overdue Pending Aug 14, 2020

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