Prosecution Insights
Last updated: October 25, 2026

Clark & Elbing LLP

Technology area: Biotechnology & Pharmaceuticals

167 pending office actions • 97 clients • 143 examiners • 71 art units • 0 of 167 (0%) have an AI response strategy ready

Analysis

Clark+Elbing LLP handles Biotechnology & Pharmaceuticals matters across 9010 career applications and has 170 pending office actions. The profile combines a broad historical application base with substantial current prosecution activity, supporting structured portfolio oversight.

The resolved allowance rate is 67.77%, and the average office actions per allowance is 3.89. The allowance rate supplies a historical resolution measure, while the action average indicates that allowed matters commonly required repeated examination activity. Practitioners can use the combination to plan sustained response work, evaluate amendment sequencing, and set client expectations around prosecution resources.

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

Quality Metrics (n=9010 apps, methodology: how we score firms)

67.8%
Allowance Rate
n=9010
+0.63σ
Allowance Rate (norm)
n=9010
3.9
OAs to Allowance
n=3688
-0.04σ
OAs to Allow (norm)
n=3688
1175 days
Time to Allowance
n=3688
+28.5pp
Interview Lift
n=9010
27.7%
RCE Rate
n=9010
1.1%
Appeal Rate
n=9010

Rejection Performance (% of received rejections ultimately overcome)

75.8%
§101 Overcome
n=583
72.6%
§102 Overcome
n=1802
71.1%
§103 Overcome
n=2617
75.7%
§112 Overcome
n=2972

Specialization & Scale

A61K, A61P, C07K
Top CPC Subclasses
50%
Top-3 CPC Share
n=9010
5
Practitioners
n=9010
1802.0
Apps / Practitioner
n=9010

Portfolio Summary

167
Total Pending OAs
115
Non-Final OAs
49
Final Rejections
3
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 47 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

22
Overdue
3
Due this week
15
Due this month
4
Due in next 60 days
3
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. 47 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (22)Due ≤ 7 days (3)Due ≤ 30 days (15)Due ≤ 60 days (4)Due later (3)

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.

94
Hard (56%)
55
Medium (33%)
17
Easy (10%)
1
Unknown (1%)

Rejection Statute Mix

BucketCases
§101 only1 (1%)
§101 + other20 (12%)
§103 only34 (20%)
§102 only4 (2%)
§112 only15 (9%)
Double-patenting only2 (1%)
Double-patenting + other17 (10%)
Multi-statute (no §101)73 (44%)
No statute on record1 (1%)

Industry Mix

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

143
Life Sciences
86% of docket
0
Information Tech
0% of docket
3
Communications
2% of docket
1
Semiconductors
1% of docket
15
Mechanical / Eng
9% of docket
5
Business / Other
3% 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.

1,670 h
Manual time on pending OAs
334 h
Time saved (low, 20%)
584 h
Time saved (mid, 35%)
14.6 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
NEAGU, IRINA 3 46.7% +57.2%
KONOPELSKI SNAVEL, SARA ELIZABETH 3 35.0% +35.4%
COFFA, SERGIO 3 61.1% +32.3%
KAUFMAN, CLAIRE M 3 63.3% +51.0%
FAN, WEIHUA 2 83.3% +12.7%
TRAN, KHOA NHAT 2 41.9% +50.5%
PETTITT, JOHN F 2 25.9% +21.6%
LEE, ANDREW P 2 48.5% +22.8%
CHERNYSHEV, OLGA N 2 54.5% +34.0%
FLINDERS, JEREMY C 2 63.5% +17.0%

Quick Wins (1)

Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 1 ordered by deadline are shown.

App #TitleExaminerDue in
18709255 BACTERIAL STRAINS FOR TREATING DISEASE FAN, WEIHUA —

Hard Cases (94)

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
17629918 ADOPTIVE TRANSFER OF PLASMACYTOID DENDRITIC CELLS TO PREVENT OR TREAT HAIR LOSS MIANO, JOSEPH PAUL 134d overdue
18024179 METHODS FOR IDENTIFYING CROSS-MODAL FEATURES FROM SPATIALLY RESOLVED DATA SETS TRAN, DUY ANH 132d overdue
18818268 ANTIBODIES WITH FC MODIFICATIONS AND METHODS OF USING THE SAME GUSTILO, ESTELLA M 72d overdue
18165613 CELL MEMBRANE PENETRATING CONJUGATES VARADARAJ, ARCHANA 56d overdue
18039812 RNA-TARGETING COMPOSITIONS AND METHODS FOR TREATING MYOTONIC DYSTROPHY TYPE 1 VIJAYARAGHAVAN, JAGAMYA NMN 31d overdue
18201498 PREFERRED ORAL TESTOSTERONE UNDECANOATE THERAPY TO ACHIEVE TESTOSTERONE REPLACEMENT TREATMENT MOU, LIYUAN 18d overdue
17625380 MAGEA10 SPECIFIC T CELL RECEPTORS AND THEIR USE ALLEN, MARIANNE P 17d overdue
17629313 PEPTIDE HAVING HAIR GROWTH PROMOTING ACTIVITY, AND USE THEREOF NIEBAUER, RONALD T 3d overdue

Interview Candidates (24)

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
17800639 CXCL8 (INTERLEUKIN-8) ACTIVITY INHIBITOR AND CORTICOSTEROID COMBINATION AND PHARMACEUTICAL COMPOSITION AND USE THEREOF LEE, ANDREW P 19d overdue
17748323 METHODS AND COMPOSITIONS FOR GENERATING HUMAN MIDBRAIN NEURAL PROGENITOR CELLS TRAN, KHOA NHAT 10d overdue
17637392 COMPSTATIN ANALOGUES AND THEIR MEDICAL USES COFFA, SERGIO 3d overdue
18024624 PEPTIDES ENDOWED WITH ANGIOGENIC ACTIVITY KONOPELSKI SNAVEL, SARA ELIZABETH 5d
18140141 METHODS OF TREATING LYMPHOPENIA KAUFMAN, CLAIRE M 60d
19162601 MODIFIED NUCLEIC ACID SEQUENCE FOR CONFERRING CLUBROOT RESISTANCE TO CANOLA AND METHODS OF PRODUCING SAME FAN, WEIHUA —
19060439 CULTURE MEDIA AND CONDITIONS FOR IN VITRO EXPANSION OF HEPATOCYTES TRAN, KHOA NHAT —
18826883 METHODS, COMPOSITIONS AND SYSTEMS FOR SOLID-STATE BAROCALORIC APPLICATIONS PETTITT, JOHN F —

Client Portfolio (97 clients)

View all 97 →

Top Art Units

Art UnitApps
165814
16328
16296
16846
16335
16755
16545
16344
16354
37914

Pending Office Actions

App #TitleClientExaminerArt UnitStatutesStatusDue inAIFiled
19388128 DEVICES FOR KYPHOPLASTY AND METHODS OF USE THEREOF Translational And Fundamental Technologies Institute LLC GREEN, MICHELLE CHRISTINE 3773 §103 Final Rejection — Pending Nov 13, 2025
19162601 MODIFIED NUCLEIC ACID SEQUENCE FOR CONFERRING CLUBROOT RESISTANCE TO CANOLA AND METHODS OF PRODUCING SAME The Governors of the University of Alberta FAN, WEIHUA 1663 §101§102§112 Non-Final OA — Pending Sep 05, 2025
19312085 RECOMBINANT ADENOVIRUSES AND USE THEREOF Washington University DRISCOLL, LORA E BARNHART 3991 §101DP Non-Final OA — Pending Aug 27, 2025
19265435 COMPOUNDS AND METHODS FOR TREATING MUSCULAR DYSTROPHY AND OTHER DISORDERS The Charlotte Mecklenburg Hospital Authority D/B/A Atrium Health DIAMOND, ALAN D 3991 DP Non-Final OA — Pending Jul 10, 2025
19126720 ELECTRONICALLY ENABLED PILL ORGANIZER 9494-1861 Québec Inc. MCCORMACK, THOMAS S 2686 §103 Non-Final OA — Pending May 02, 2025
19181929 COMPOSITIONS AND METHODS FOR INDUCING OOCYTE MATURATION Gameto, Inc. CORDAS, EMILY ANN 1632 §102§103Other Non-Final OA — Pending Apr 17, 2025
19060439 CULTURE MEDIA AND CONDITIONS FOR IN VITRO EXPANSION OF HEPATOCYTES Satellite Biosciences, Inc. TRAN, KHOA NHAT 1632 §102§103 Final Rejection — Pending Feb 21, 2025
18876576 COMPOSITIONS AND METHODS FOR THE PURIFICATION OF SQUALENE Amyris, Inc. FADHEL, ALI Z 1772 §102§103 Non-Final OA — Pending Dec 18, 2024
18853473 ADENO-ASSOCIATED VIRUS POTENCY ASSAY AND USES THEREOF Astellas Gene Therapies, Inc. POPA, ILEANA 1633 §103 Non-Final OA — Pending Oct 02, 2024
18826883 METHODS, COMPOSITIONS AND SYSTEMS FOR SOLID-STATE BAROCALORIC APPLICATIONS President and Fellows of Harvard College PETTITT, JOHN F 3763 §103§112 Non-Final OA — Pending Sep 06, 2024
18843373 GPR120 AGONISTS FOR THE TREATMENT OF INFLAMMATORY BOWEL DISEASE Dompe' Farmaceutici Spa REDWOOD, CHRISTOPHER EVAN 1629 §103§112DP Non-Final OA — Pending Sep 03, 2024
18821656 METHODS OF USE OF CYCLIC AMIDE DERIVATIVES TO TREAT SCHIZOPHRENIA Minerva Neurosciences, Inc. RODRIGUEZ, RAYNA B 1628 DP Non-Final OA — Pending Aug 30, 2024
18818268 ANTIBODIES WITH FC MODIFICATIONS AND METHODS OF USING THE SAME The General Hospital Corporation GUSTILO, ESTELLA M 1646 §103§112Other Final Rejection 72d overdue Pending Aug 28, 2024
18841472 ORAL PCLX-001 IN THE TREATMENT OF HUMAN CANCER Pacylex Pharmaceuticals Inc. CORNET, JEAN P 1628 §102§103§112 Non-Final OA — Pending Aug 26, 2024
18838347 NEURAL PROGENITOR CELL COMPOSITIONS AND METHODS OF USING THE SAME The General Hospital Corporation KASAYAN, KATRIEL BARCELLANO 1634 §101§103§112 Non-Final OA — Pending Aug 14, 2024
18572977 DEXMECAMYLAMINE AND USES THEREOF Atacama Therapeutics, Inc. ROCHELLE, CIERRA MARIE 1627 §103 Non-Final OA — Pending Aug 13, 2024
18833242 IMIDAZOPYRIDINE INHIBITORS OF TYROSINE KINASE Bridgene Biosciences. Inc. FETTEROLF, BRANDON J 1626 §112 Non-Final OA — Pending Jul 25, 2024
18769009 RAS INHIBITORS Revolution Medicines, Inc. KIM, SEONG JONG 1621 §112 Non-Final OA — Pending Jul 10, 2024
18764714 METHODS OF USE OF PHENOXYPROPYLAMINE COMPOUNDS TO TREAT DEPRESSION Minerva Neurosciences, Inc. NEAGU, IRINA 1629 §103§112 Non-Final OA — Pending Jul 05, 2024
18763519 NGF ISOFORM FOR USE IN THE TREATMENT OF OCULAR PATHOLOGIES Dompe' Farmaceutici Spa WANG, CHANG YU 1675 §102§103§112Other Non-Final OA — Pending Jul 03, 2024
18724352 PEPTIDE HAVING ACTIVITY OF IMPROVING STATE OF SKIN, AND USE THEREOF Caregen Co., Ltd. KONOPELSKI SNAVEL, SARA ELIZABETH 1658 §101§112 Non-Final OA — Pending Jun 26, 2024
18724295 PEPTIDE HAVING ACTIVITY OF IMPROVING STATE OF SKIN, AND USE THEREOF Caregen Co., Ltd. HA, JULIE 1654 §101 Non-Final OA — Pending Jun 26, 2024
18724255 PEPTIDE HAVING ACTIVITY OF IMPROVING STATE OF SKIN, AND USE THEREOF Caregen Co., Ltd. COFFA, SERGIO 1658 §102§112 Non-Final OA — Pending Jun 26, 2024
18719261 METHODS FOR THE SYNTHESIS OF COMPLEMENT FACTOR D INHIBITORS Alexion Pharmaceuticals, Inc. BAUER, BRIANNA LEE 1623 §112 Non-Final OA — Pending Jun 13, 2024
18719260 METHODS FOR THE SYNTHESIS OF COMPLEMENT FACTOR D INHIBITORS AND INTERMEDIATES THEREOF Alexion Pharmaceuticals, Inc. ROMERO, KRISTEN WANG 1624 §102§103Other Non-Final OA — Pending Jun 13, 2024
18714669 METHOD OF GENERATING FUNCTIONAL ISLETS FROM PLURIPOTENT STEM CELLS Hangzhou Reprogenix Bioscience, Inc. MOSS, NATALIE M 1653 §103§112 Non-Final OA — Pending May 30, 2024
18709255 BACTERIAL STRAINS FOR TREATING DISEASE Microba Ip Pty Ltd. FAN, WEIHUA 1663 §112 Final Rejection — Pending May 10, 2024
18659831 PHARMACEUTICAL COMBINATIONS FOR TREATMENT OF HBV Hoffmann-La Roche, Inc. KONOPKA, CATHERINE ANNE 1635 §102§103§112 Non-Final OA — Pending May 09, 2024
18708275 FLUID TREATMENT SYSTEM AND RELATED METHODS Lignosol Ip Limited BUSHEY, CHARLES S 1776 §102§103§112 Non-Final OA — Pending May 08, 2024
18658154 SYSTEM FOR DETECTING MICRO-NEUROMAS AND METHODS OF USE THEREOF President and Fellows of Harvard College SIPES, JOHN CURTIS 2872 Other Non-Final OA — Pending May 08, 2024
18655854 COMPOSITION AND METHOD FOR MUSCLE REPAIR AND REGENERATION Thomas Jefferson University LEE, ANDREW P 1691 §102§103 Non-Final OA — Pending May 06, 2024
18707478 METHODS FOR DEFINING STAGES AND PROGRESSION OF AMYOTROPHIC LATERAL SCLEROSIS The General Hospital Corporation CHERNYSHEV, OLGA N §101§112 Non-Final OA — Pending May 03, 2024
18653106 METHODS OF TREATING CANCER Inspirna, Inc. HUTTER, GILLIAN A 1625 §103DP Non-Final OA — Pending May 02, 2024
18706302 DETECTION, STAGING, MONITORING AND TREATING A DISEASE OR A CONDITION Sunbird Bio, Inc. BOWERS, ERIN M 1653 §102Other Non-Final OA 20d Pending Apr 30, 2024
18647374 SIGMA LIGAND COMPOUNDS AND USES THEREOF Minerva Neurosciences, Inc. RICCI, CRAIG D 1611 §112 Non-Final OA — Pending Apr 26, 2024
18645535 FUNCTIONAL EEG MONTAGE FOR COGNITIVE SKILL DEVELOPMENT Thynk, Inc. JANG, CHRISTIAN Y 3791 §103§112 Non-Final OA — Pending Apr 25, 2024
18646092 ENGINEERED TISSUE CONSTRUCTS AND USES THEREOF Satellite Biosciences, Inc. PELLEGRINO, BRIAN E 3799 §102§103§112Other Non-Final OA — Pending Apr 25, 2024
18704122 CULTURE MEDIA AND CONDITIONS FOR IN VITRO EXPANSION AND/OR MATURATION OF HEPATOCYTES Satellite Biosciences, Inc. GU, QINHUA 1633 §102§103§112Other Non-Final OA — Pending Apr 24, 2024
18634289 CRYSTALLINE FORMS OF RAS INHIBITORS, COMPOSITIONS CONTAINING THE SAME, AND METHODS OF USE THEREOF Revolution Medicines, Inc. INAM, SAHAR 1622 §103 Non-Final OA — Pending Apr 12, 2024
18634241 GONADOTROPIN-RELEASING HORMONE ANTAGONIST DOSING REGIMENS FOR THE TREATMENT OF ENDOMETRIOSIS Kissei Pharmaceutical Co., Ltd. HUI, SAN MING R 1627 §103DP Non-Final OA — Pending Apr 12, 2024
18698176 OLIGOSACCHARIDE COMPOSITIONS AND METHODS OF USE THEREOF FOR TREATING INFLAMMATORY LUNG DISEASES DSM Nutritional Products, LLC LAU, JONATHAN S 1693 §102§103§112DP Non-Final OA — Pending Apr 03, 2024
18697064 KITS AND METHODS FOR PREPARATION OF NUCLEIC ACID LIBRARIES FOR SEQUENCING Seqwell, Inc. RAYMONDA, MATTHEW HAROLD 1684 §103§112 Non-Final OA — Pending Mar 29, 2024
18695095 METHODS OF EDITING NUCLEIC ACID SEQUENCES UNITED KINGDOM RESEARCH AND INNOVATION WARD, AARON DUREL §102§103§112Other Non-Final OA — Pending Mar 25, 2024
18693722 PLATFORMS FOR DRUG TESTS AGAINST SYNUCLEINOPATHY USING HUMAN BRAIN ORGANOIDS Okinawa Institute Of Science And Technology School Corporation ROGERS, ERIC JASON 1638 §102§103§112 Non-Final OA — Pending Mar 20, 2024
18605744 ASSAYS FOR ALPHA-DYSTROGLYCAN GLYCOSYLATION AND METHODS FOR USING SAME Bridgebio Services Inc. MONTGOMERY, ANN Y 1678 §101§103§112 Non-Final OA — Pending Mar 14, 2024
18691764 SORBENTS AND METHODS FOR CARBON CAPTURE VIA CALCIUM LOOPING UTI LIMITED PARTNERSHIP HAILEY, PATRICIA L 1732 §102§112 Non-Final OA — Pending Mar 13, 2024
18691738 SYNERGISTIC NANOMEDICINE DELIVERING TOPOISOMERASE I TOXIN (SN-38) AND INHIBITORS OF POLYNUCLEOTIDE KINASE 3'-PHOSPHATASE (PNKP) FOR ENHANCED TREATMENT OF COLORECTAL CANCER The Governors of the University of Alberta PROSSER, ALISSA J 1619 §103§112 Non-Final OA 53d Pending Mar 13, 2024
18602622 GENE THERAPY FOR TUBEROUS SCLEROSIS The General Hospital Corporation VIVLEMORE, TRACY ANN 1638 §102§112DP Non-Final OA — Pending Mar 12, 2024
18688617 METHODS OF PRODUCING HUMAN MILK OLIGOSACCHARIDES AND COMPOSITIONS THEREOF Amyris, Inc. MOEHLMAN, ANDREW TERRY 1655 §103§112 Non-Final OA — Pending Mar 01, 2024
18688518 METHODS FOR IDENTIFYING CROSS-MODAL FEATURES FROM SPATIALLY RESOLVED DATA SETS The General Hospital Corporation RIVERA-MARTINEZ, GUILLERMO M 2677 §112 Final Rejection 22d overdue Pending Mar 01, 2024

View all 167 →

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Frequently Asked Questions

What is Clark & Elbing LLP's patent allowance rate?

67.8% of resolved applications prosecuted by Clark & Elbing LLP were allowed, across 9,010 applications in USPTO records.

How many office actions does Clark & Elbing LLP average before allowance?

3.89 office actions per allowed application on average.

How many pending office actions does Clark & Elbing LLP have?

167 pending office actions as of October 2026, for 97 clients, before 143 examiners in 71 art units.

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