Prosecution Insights
Last updated: October 25, 2026

Pfizer Inc.

Technology area: Biotechnology & Pharmaceuticals

51 pending office actions • 30 art units • 48 examiners • 0 of 51 (0%) have an AI response strategy ready • 40 patents granted in the last 365 days

Analysis

Pfizer Inc. has 51 pending office actions in Biotechnology & Pharmaceuticals. The matters span 48 examiners and 30 art units, indicating a large docket with extensive examiner dispersion and repeated activity across multiple art units.

VAJDA, KRISTIN ANN is the busiest examiner, with 2 pending matters. That limited concentration means the docket is not organized around one dominant examiner, even though a small amount of examiner-level repetition exists. The difference between the number of pending matters and the number of examiners shows that most examiner relationships are matter-specific, while the art-unit distribution supports coordinated review of recurring technical and procedural issues.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Portfolio Summary

51
Total Pending OAs
39
Non-Final OAs
12
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 14 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

5
Overdue
0
Due this week
6
Due this month
2
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. 14 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (5)Due ≤ 30 days (6)Due ≤ 60 days (2)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.

24
Hard (47%)
14
Medium (27%)
10
Easy (20%)
3
Unknown (6%)

Rejection Statute Mix

BucketCases
§101 + other7 (14%)
§103 only8 (16%)
§112 only8 (16%)
Double-patenting only2 (4%)
Double-patenting + other6 (12%)
Multi-statute (no §101)17 (33%)
No statute on record3 (6%)

Industry Mix

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

44
Life Sciences
86% of docket
0
Information Tech
0% of docket
1
Communications
2% of docket
0
Semiconductors
0% of docket
4
Mechanical / Eng
8% 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
VAJDA, KRISTIN ANN 2 83.8% +11.1%
GANGLE, BRIAN J 2 76.8% +14.6%
BORALSKY, LUKE ALAN 2 66.7% +44.4%
MASTERS, KRISTEN MICHELLE 1 65.5% +20.6%
WELLS, LAUREN QUINLAN 1 49.4% +59.7%
KIFLE, BRUCK 1 79.3% +15.8%
KIM, SAMUEL CHONG 1 49.2% +69.8%
ZOU, NIANXIANG 1 64.0% +25.0%
MPAMUGO, CHINYERE 1 28.9% +26.9%
SHAMEEM, GOLAM M 1 86.7% +15.9%

Quick Wins (2)

Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 2 ordered by deadline are shown.

App #TitleExaminerDue in
18789272 SULFONYL AMIDE DERIVATIVES FOR THE TREATMENT OF ABNORMAL CELL GROWTH VAJDA, KRISTIN ANN —
18719456 COMBINATION THERAPIES AND USES FOR TREATING CANCER SHAMEEM, GOLAM M —

Hard Cases (24)

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
17431462 Methods for purifying bacterial polysaccharides CREWS, JARET JAMES 53d overdue
18565626 METHODS OF TREATMENT VALENROD, YEVGENY 17d overdue
18557987 VACCINATION AGAINST BACTERIAL AND BETACORONAVIRUS INFECTIONS FOLEY, SHANON A 8d
18551038 PHARMACEUTICAL COMPOSITIONS CONTAINING ADENO-ASSOCIATED VIRAL VECTOR VIVLEMORE, TRACY ANN 9d
19196858 METHOD AND APPARATUS FOR IMPROVED MAN-MACHINE INTERACTIONS MASTERS, KRISTEN MICHELLE —
19023946 Benzodiazepine Pyrazolo Carboxamides as N-protein Inhibitors WELLS, LAUREN QUINLAN —
18842257 COMPUTERIZED DECISION SUPPORT TOOL AND MEDICAL DEVICE FOR RESPIRATORY CONDITION MONITORING AND CARE KIM, SAMUEL CHONG —
18833823 CORONAVIRUS ANTIGEN VARIANTS ZOU, NIANXIANG —

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
19196858 METHOD AND APPARATUS FOR IMPROVED MAN-MACHINE INTERACTIONS MASTERS, KRISTEN MICHELLE —
19023946 Benzodiazepine Pyrazolo Carboxamides as N-protein Inhibitors WELLS, LAUREN QUINLAN —
18954736 Crystalline form of (2R)-2-(5-fluoro-2-methoxypyridin-4-yl)-1-[(2S)-7-methyl-6-(pyrimidin-2-yl)-3,4-dihydro-1H-spiro[1,8-naphthyridine-2,3-pyrrolidin]-1-yl]propan-1-one KIFLE, BRUCK —
18842257 COMPUTERIZED DECISION SUPPORT TOOL AND MEDICAL DEVICE FOR RESPIRATORY CONDITION MONITORING AND CARE KIM, SAMUEL CHONG —
18789272 SULFONYL AMIDE DERIVATIVES FOR THE TREATMENT OF ABNORMAL CELL GROWTH VAJDA, KRISTIN ANN —
18833823 CORONAVIRUS ANTIGEN VARIANTS ZOU, NIANXIANG —
18722084 DIGITAL MEDICINE COMPANION FOR TREATING AND MANAGING SKIN DISEASES MPAMUGO, CHINYERE —
18719456 COMBINATION THERAPIES AND USES FOR TREATING CANCER SHAMEEM, GOLAM M —

Top Art Units

Art UnitApps
1624 5
1645 4
1622 3
1671 3
1691 3
3791 2
1629 2
1674 2
1621 2
1626 2

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19196858 METHOD AND APPARATUS FOR IMPROVED MAN-MACHINE INTERACTIONS MASTERS, KRISTEN MICHELLE 2659 §101§103 Non-Final OA — Pending May 02, 2025
19023946 Benzodiazepine Pyrazolo Carboxamides as N-protein Inhibitors WELLS, LAUREN QUINLAN 1622 §103§112Other Non-Final OA — Pending Jan 16, 2025
18954736 Crystalline form of (2R)-2-(5-fluoro-2-methoxypyridin-4-yl)-1-[(2S)-7-methyl-6-(pyrimidin-2-yl)-3,4-dihydro-1H-spiro[1,8-naphthyridine-2,3-pyrrolidin]-1-yl]propan-1-one KIFLE, BRUCK 1624 DP Non-Final OA — Pending Nov 21, 2024
18842257 COMPUTERIZED DECISION SUPPORT TOOL AND MEDICAL DEVICE FOR RESPIRATORY CONDITION MONITORING AND CARE KIM, SAMUEL CHONG 3791 §101§103§112 Non-Final OA — Pending Aug 28, 2024
18789272 SULFONYL AMIDE DERIVATIVES FOR THE TREATMENT OF ABNORMAL CELL GROWTH VAJDA, KRISTIN ANN 1624 DP Non-Final OA — Pending Jul 30, 2024
18833823 CORONAVIRUS ANTIGEN VARIANTS ZOU, NIANXIANG 1671 §101§102§103 Non-Final OA — Pending Jul 26, 2024
18722084 DIGITAL MEDICINE COMPANION FOR TREATING AND MANAGING SKIN DISEASES MPAMUGO, CHINYERE 3685 §101§103 Non-Final OA — Pending Jun 20, 2024
18719456 COMBINATION THERAPIES AND USES FOR TREATING CANCER SHAMEEM, GOLAM M — §112 Non-Final OA — Pending Jun 13, 2024
18739401 POLYNUCLEOTIDE COMPOSITIONS AND USES THEREOF OGUNBIYI, OLUWATOSIN A 1645 §102§103§112 Non-Final OA — Pending Jun 11, 2024
18714642 CDK4 INHIBITOR FOR THE TREATMENT OF CANCER TOWNSLEY, SARA ELIZABETH 1629 §103§112DP Non-Final OA — Pending May 30, 2024
18708093 Enhancement Of CD47 Blockade Therapy With Anti-VEGF Agents HOLTZMAN, KATHERINE ANN 1646 §101§102§103§112DP Non-Final OA — Pending May 07, 2024
18706732 METHODS OF TREATING MITOCHONDRIAL MYOPATHIES USING ANTI-GDF15 ANTIBODIES ABBAS, SYED JARAR 1674 §103§112DP Non-Final OA — Pending May 01, 2024
18621962 Immunogenic compositions comprising conjugated capsular saccharide antigens and uses thereof GANGLE, BRIAN J 1691 §102§112DP Non-Final OA — Pending Mar 29, 2024
18249752 METHODS FOR MEASURING DYSTROPHIN IN TISSUE SAMPLES SODERQUIST, ARLEN 1797 §102§103§112 Non-Final OA — Pending Feb 28, 2024
18586896 CETYLTRIMETHYLAMMONIUM BROMIDE (CTAB) AS A LYSIS AND FLOCCULATION REAGENT IN GENE THERAPY DOWNSTREAM PROCESSES KARUNASENA, ENUSHA 1653 §102§103§112 Non-Final OA — Pending Feb 26, 2024
18684225 Amorphous Form of (S)-2-(5-((3-Ethoxypyridin-2-YL)Oxy)Pyridin-3-YL)-N-(Tetrahydrofuran-3-YL)Pyrimidine-5-Carboxamide YOO, SUN JAE 1621 §112 Non-Final OA — Pending Feb 16, 2024
18541015 HSD17B13 Inhibitors and/or Degraders BORALSKY, LUKE ALAN 1624 §102§103§112 Non-Final OA — Pending Dec 15, 2023
18535116 IMMUNOGENIC COMPOSITIONS AND METHODS FOR ELICITING AN IMMUNE RESPONSE AGAINST CLOSTRIDIOIDES (CLOSTRIDIUM) DIFFICILE HAUK TEODORO, PRICILA NMN 1645 §103DP Final Rejection 34d Pending Dec 11, 2023
18532424 Papain-like protease (PLpro) inhibitors BELL, SARA ELIZABETH 1625 §102§112 Non-Final OA — Pending Dec 07, 2023
18557987 VACCINATION AGAINST BACTERIAL AND BETACORONAVIRUS INFECTIONS FOLEY, SHANON A 1671 §103§112 Final Rejection 8d Pending Oct 30, 2023
18552453 Ether-Linked Antiviral Compounds ANDERSON, REBECCA L 1626 §112 Non-Final OA 71d overdue Pending Sep 26, 2023
18551619 METHODS FOR PRODUCING OF LIPIDS CARR, DEBORAH D 1691 §103§112 Non-Final OA — Pending Sep 21, 2023
18551038 PHARMACEUTICAL COMPOSITIONS CONTAINING ADENO-ASSOCIATED VIRAL VECTOR VIVLEMORE, TRACY ANN 1638 §102§103§112Other Non-Final OA 9d Pending Sep 18, 2023
18550326 Methods For Treatment of Vitiligo FERGUSON, JALISA HOLMES 1626 §102§103§112 Non-Final OA — Pending Sep 13, 2023
18549158 Treatment of Breast Cancer with Amcenestrant and Palbociclib LEESER, ERICH A 1622 §103 Non-Final OA 22d Pending Sep 05, 2023
18277425 NOVEL DRUGGABLE REGIONS IN THE HUMAN CYTOMEGALOVIRUS GLYCOPROTEIN B POLYPEPTIDE AND METHODS OF USE THEREOF CORNELIUS, CLAIRE ADRIENNE 1618 §101§102§112 Non-Final OA — Pending Aug 16, 2023
18446883 COMPOSITIONS AND METHODS FOR ELICITING AN IMMUNE RESPONSE AGAINST CLOSTRIDIUM DIFFICILE GANGLE, BRIAN J 1645 §103§112 Non-Final OA — Pending Aug 09, 2023
18350986 CELLS AND METHOD OF CELL CULTURE HUMPHRIES, NICHOLAS ADAM 1631 §103 Final Rejection 60d overdue Pending Jul 12, 2023
18343968 NEISSERIA MENINGITIDIS COMPOSITIONS AND METHODS THEREOF DEVI, SARVAMANGALA 1645 — Final Rejection — Pending Jun 29, 2023
18268959 SOLID FORMS OF A CDK2 INHIBITOR MCDOWELL, BRIAN E 1624 §112 Final Rejection — Pending Jun 21, 2023
18258027 IMPROVED PHARMACEUTICAL COMPOSITIONS CONTAINING ADENO-ASSOCIATED VIRAL VECTOR RIGA, MICHAEL ANGELO 1634 §102§103§112 Non-Final OA — Pending Jun 16, 2023
18257215 HILIC UPLC-MS Method For Separating and Analyzing Intact Adeno-Associated Virus Capsid Proteins LY, KRISTINA ELISABETH 1671 §103§112 Non-Final OA — Pending Jun 13, 2023
18249581 PEG-FREE AQUEOUS SUSPENSIONS FOR PARENTERAL ADMINISTRATION OF A CORTICOSTEROID AGGARWAL, SAHIL CHANDER 1623 §103 Non-Final OA — Pending Apr 19, 2023
18249411 Methods for purifying bacterial polysaccharides PATEL, PRANAV N 1777 §112 Final Rejection 29d Pending Apr 18, 2023
18041447 Methods of Protecting RNA BATES, KEENAN ALEXANDER 1631 §112 Final Rejection — Pending Feb 13, 2023
18146014 COMBINATION OF AN ANTI-PD-L1 ANTIBODY AND A DNA-PK INHIBITOR FOR THE TREATMENT OF CANCER JOHANSEN, PETER N. 1644 §103DP Non-Final OA 85d overdue Pending Dec 23, 2022
18002555 COMPUTERIZED DECISION SUPPORT TOOL AND MEDICAL DEVICE FOR SCRATCH DETECTION AND FLARE PREDICTION WESTFALL, SARAH ANN 3791 §103 Non-Final OA — Pending Dec 20, 2022
18002368 METHOD OF TREATMENT OF INFLAMMATORY BOWEL DISEASE USING ANTI-TL1A ANTIBODIES KAUFMAN, CLAIRE M 1674 §103§112 Non-Final OA — Pending Dec 19, 2022
17997312 MODIFIED NUCLEIC ACIDS ENCODING ASPARTOACYLASE (ASPA) AND VECTOR FOR GENE THERAPY ALLEN, SARAH ELIZABETH 1637 Other Non-Final OA 34d Pending Oct 27, 2022
17799992 PURIFICATION OF SACCHARIDES LAU, JONATHAN S 1693 §102§103 Final Rejection — Pending Aug 16, 2022
17607341 REAL-TIME TRACKING AND MANAGEMENT OF STANDARD WORKFLOWS KONERU, SUJAY 3624 §101§103 Non-Final OA — Pending Oct 28, 2021
17431462 Methods for purifying bacterial polysaccharides CREWS, JARET JAMES 1691 §103§112 Final Rejection 53d overdue Pending Aug 17, 2021
19024658 METHOD OF TREATING CONDITIONS RELATED TO THE PGI2 RECEPTOR VAJDA, KRISTIN ANN — Other Non-Final OA — Pending Jan 16, 2025
18841455 NOVEL S1P1 RECEPTOR AGONIST, CRYSTALLINE SALTS, PROCESSES FOR PREPARING, AND USES RELATED THERETO AULAKH, CHARANJIT 1621 §112 Final Rejection — Pending Aug 26, 2024
18441209 MODULATORS OF THE PROSTACYCLIN (PGI2) RECEPTOR USEFUL FOR THE TREATMENT OF DISORDERS RELATED THERETO SAWYER, JENNIFER C 1658 §112 Non-Final OA — Pending Feb 14, 2024
18566862 Administration of a Compound to Individuals with Hepatic Impairment TRAN, ERIC 1629 §103Other Non-Final OA 12d Pending Dec 04, 2023
18565626 METHODS OF TREATMENT VALENROD, YEVGENY 1628 §103§112 Final Rejection 17d overdue Pending Nov 30, 2023
18259843 Methods of Treatment ABDALHAMEED, MANAHIL MIRGHANI ALI 1622 §103Other Non-Final OA 71d Pending Jun 29, 2023
18830475 TABLETS COMPRISING 2-HYDROXY-6-((2-(1-ISOPROPYL-1H-PYRAZOL-5-YL)PYRIDIN-3-YL)METHOXY)BENZALDEHYDE BAEK, BONG-SOOK 1611 §103Other Non-Final OA — Pending Sep 10, 2024
18717181 METHODS OF ADMINISTERING A MODULATOR OF HEMOGLOBIN BORALSKY, LUKE ALAN 1624 §102§103§112DP Non-Final OA — Pending Jun 06, 2024

View all 51 →

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Frequently Asked Questions

How many pending USPTO office actions does Pfizer Inc. have?

Pfizer Inc. has 51 pending office actions as of October 2026, spread across 30 art units and 48 examiners.

Which USPTO examiner handles the most Pfizer Inc. applications?

Kristin Ann Vajda has the most, with 2 of Pfizer Inc.'s pending office actions.

What technology area are Pfizer Inc.'s patent applications in?

Mostly Biotechnology & Pharmaceuticals (USPTO Tech Center 1600), based on where its pending office actions are examined.

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