Prosecution Insights
Last updated: October 25, 2026

Leason Ellis, LLP

Technology area: Biotechnology & Pharmaceuticals

266 pending office actions • 172 clients • 249 examiners • 157 art units • 0 of 266 (0%) have an AI response strategy ready

Analysis

Leason Ellis LLP has 255 pending office actions in Biotechnology & Pharmaceuticals, supported by 10348 career applications. Its resolved allowance rate is 88.05%, and the average number of office actions per allowance is 2.83.

The application history supplies substantial context for evaluating the firm’s prosecution record. The allowance rate describes resolved outcomes, while the pending-action figure identifies matters still requiring attention. The average office-action measure indicates that allowed matters in the measured record involved recurring examination activity, making response planning and amendment strategy relevant considerations for practitioners handling similar biotechnology and pharmaceutical portfolios.

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

Quality Metrics (n=10348 apps, methodology: how we score firms)

88.0%
Allowance Rate
n=10348
+0.60σ
Allowance Rate (norm)
n=10348
2.8
OAs to Allowance
n=6811
-0.41σ
OAs to Allow (norm)
n=6811
975 days
Time to Allowance
n=6811
+8.0pp
Interview Lift
n=10348
21.2%
RCE Rate
n=10348
0.7%
Appeal Rate
n=10348

Rejection Performance (% of received rejections ultimately overcome)

74.5%
§101 Overcome
n=750
78.8%
§102 Overcome
n=2583
78.6%
§103 Overcome
n=4380
80.0%
§112 Overcome
n=3770

Specialization & Scale

A61K, A61P, G01N
Top CPC Subclasses
13%
Top-3 CPC Share
n=10348
30
Practitioners
n=10348
344.9
Apps / Practitioner
n=10348

Portfolio Summary

266
Total Pending OAs
170
Non-Final OAs
80
Final Rejections
16
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 75 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

45
Overdue
4
Due this week
13
Due this month
8
Due in next 60 days
5
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. 75 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (45)Due ≤ 7 days (4)Due ≤ 30 days (13)Due ≤ 60 days (8)Due later (5)

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.

145
Hard (55%)
92
Medium (35%)
27
Easy (10%)
2
Unknown (1%)

Rejection Statute Mix

BucketCases
§101 only1 (0%)
§101 + other27 (10%)
§103 only54 (20%)
§102 only13 (5%)
§112 only22 (8%)
Double-patenting only5 (2%)
Double-patenting + other25 (9%)
Multi-statute (no §101)117 (44%)
No statute on record2 (1%)

Industry Mix

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

153
Life Sciences
58% of docket
14
Information Tech
5% of docket
4
Communications
2% of docket
16
Semiconductors
6% of docket
76
Mechanical / Eng
29% of docket
3
Business / Other
1% 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.

2,660 h
Manual time on pending OAs
532 h
Time saved (low, 20%)
931 h
Time saved (mid, 35%)
23.3 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
JOHANSEN, PETER N. 3 59.6% +24.4%
CHONG, YONG SOO 3 43.8% +41.8%
PAZ ESTEVEZ, GUILLERMO G 3 20.0% +6.8%
STEADMAN, DAVID J 2 57.7% +29.7%
ROBINSON, RENEE E 2 73.7% +24.2%
ROSSI, JULIA ANNE LORRAIN 2 45.7% +61.3%
GRAVES, TIMOTHY P 2 81.1% +15.2%
LEE, HOI YAN NMN 2 37.5% +76.2%
HUDSON, AMY ROSE 2 74.8% +11.7%
REGA, KYLE THOMAS 2 63.0% +41.7%

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
18726605 OPTICAL MEASUREMENT SYSTEM GRAVES, TIMOTHY P —

Hard Cases (148)

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
18044723 ASSISTANCE SYSTEM, COMPUTER PROGRAM FOR ASSISTANCE SYSTEM, AND METHOD OF CONTROL FOR ASSISTANCE SYSTEM KANG, TIMOTHY J 162d overdue
17317717 VENOUS ACCESS CATHETERS AND METHODS FOR PORTAL VENOUS SYSTEM CATHETERIZATION PAZ ESTEVEZ, GUILLERMO G 128d overdue
17501148 VENOUS ACCESS CATHETERS AND METHODS FOR PORTAL VENOUS SYSTEM CATHETERIZATION PAZ ESTEVEZ, GUILLERMO G 114d overdue
18252712 EUTECTIC COMPOSITIONS, METHODS AND USES THEREOF MEYERS, ELIZABETH ANNE 93d overdue
17112451 AUTOMATED HEALTH DATA ACQUISITION, PROCESSING AND COMMUNICATION SYSTEM HOLCOMB, MARK 89d overdue
17997965 Absorbent Structure for Items of Clothing, Operating Method and Uses Thereof PATEL, RONAK C 87d overdue
18522773 METHOD FOR GENERATING TEXTUAL DESCRIPTIONS FOR A DATA CHART AND ENHANCING NAVIGABILITY ON GRAPHICAL INTERFACES CALDERON SANTIAGO, ALVARO RAFAEL 86d overdue
17415070 BIODEGRADABLE BIOCHEMICAL SENSOR FOR DETERMINING THE PRESENCE AND/OR THE LEVEL OF PESTICIDES OR ENDOCRINE DISRUPTORS: METHOD AND COMPOSITION BREEN, KIMBERLY CATHERINE 84d overdue

Interview Candidates (20)

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
18248733 COMBINATION OF POH AND REMDESIVIR FOR TREATMENT OF CNS INFECTIONS LEE, HOI YAN NMN 134d overdue
18149913 CONSTRUCTS, COMPOSITIONS, CELLS AND METHODS FOR INCREASED RECOMBINANT PROTEIN EXPRESSION BY TARGETED INTEGRATION AND AMPLIFICATION REGA, KYLE THOMAS 36d overdue
16901427 ACTIVATED LYMPHOCYTIC CELLS AND METHODS OF USING THE SAME TO TREAT CANCER AND INFECTIOUS CONDITIONS JOHANSEN, PETER N. 3d overdue
17786175 BENZODIAZEPINE DERIVATIVES, COMPOSITIONS, AND METHODS FOR TREATING COGNITIVE IMPAIRMENT CHONG, YONG SOO 19d
18265525 CYCLOBENZAPRINE TREATMENT FOR FIBROMYALGIA CHONG, YONG SOO 26d
17995191 INDOLE DITERPENE BIOSYNTHESIS STEADMAN, DAVID J 34d
19667436 COMPOSITIONS AND METHODS FOR TREATING MULTIPLE SCLEROSIS JOHANSEN, PETER N. —
19114714 Protease-conditional targeted nucleic acid recombination, method and uses thereof STEADMAN, DAVID J —

Client Portfolio (172 clients)

View all 172 →

Top Art Units

Art UnitApps
37839
37917
16287
16156
16576
16445
16265
16134
16314
16224

Pending Office Actions

App #TitleClientExaminerArt UnitStatutesStatusDue inAIFiled
19673111 HANGER WITH A DOUBLE TORSION SPRING COIL CLIP AND HOOK SWING LIMITER King Keung Kennedy Chan DURHAM, NATHAN E 3732 §102§103§112 Non-Final OA — Pending May 11, 2026
19667100 GLP-1 RECEPTOR TARGETING COMPOUNDS AND USES THEREOF Fortvita Biologics Inc. OTTON, ALICIA L 1699 §112 Non-Final OA — Pending May 04, 2026
19667436 COMPOSITIONS AND METHODS FOR TREATING MULTIPLE SCLEROSIS Hoffmann-La Roche, Inc. JOHANSEN, PETER N. 1644 §103DP Non-Final OA — Pending May 04, 2026
19423896 OPERATING DEVICE FOR AN ACTUATOR OF A MOTOR VEHICLE Ferrari S.p.A. MACARTHUR, VICTOR L 3618 §102§103§112 Non-Final OA — Pending Dec 17, 2025
19489056 Control Systems, Methods and Devices Sensor Holdings Limited XIE, KWIN 2626 §102§103 Non-Final OA — Pending Dec 01, 2025
19385648 POWER TRANSMISSION APPARATUS Hyundai WIA Corporation MASINICK, JONATHAN PETER 3678 §102§103 Non-Final OA — Pending Nov 11, 2025
19379288 CONSTANT VELOCITY JOINT ASSEMBLY Hyundai WIA Corporation HALL, ZACHARY A 3678 §103 Non-Final OA — Pending Nov 04, 2025
19341707 THIN TACTILE REPRODUCTION DISPLAY PANEL AND DISPLAY APPARATUS BOE TECHNOLOGY GROUP CO., LTD. LIN, CHUN-NAN 2629 DP Non-Final OA — Pending Sep 26, 2025
19279492 METHOD FOR PROCESSING PRODUCT MANUFACTURING MESSAGES, ELECTRONIC DEVICE, AND COMPUTER-READABLE STORAGE MEDIUM BOE TECHNOLOGY GROUP CO., LTD. SHIN, KYUNG H 2447 §103 Non-Final OA — Pending Jul 24, 2025
19272570 INTERACTIVE TELEVISION SYSTEM AND METHOD INCLUDING SUPPLEMENTAL CONTENT Dymaxion LLC HONG, MICHAEL HYUN 2426 §103Other Non-Final OA — Pending Jul 17, 2025
19272656 SEMANTIC MATCHING SYSTEM AND METHOD Janzz Ltd. VU, BAI DUC 2163 §102§103§112 Non-Final OA — Pending Jul 17, 2025
19232259 Method and apparatus for a receiver for orthogonal frequency division multiplexing signals with strong nonlinear distortion effects Cofac - Cooperativa De Formação E Animação Cultural, Crl TAYONG, HELENE E 2631 §101§112 Non-Final OA — Pending Jun 09, 2025
19216988 COMPUTER-IMPLEMENTED METHOD FOR MONITORING A COMPUTER SYSTEM FOR ACCOUNT AND/OR SESSION SECURITY ATTACKS, AND COMPUTER SYSTEM THEREOF Feedzai - Consultadoria E Inovação Tecnológica, S.A. BENGZON, GREG C 2444 §103 Non-Final OA — Pending May 23, 2025
19213042 APPARATUS FOR THE TREATMENT OF POWDER, GRAIN, PASTE PRODUCTS OR THE LIKE Wamgroup S.p.A. DANDRIDGE, CHRISTOPHER R. 3752 §102§103§112 Non-Final OA — Pending May 20, 2025
19130721 METHOD AND APPARATUS FOR CALIBRATING AN ADAS ELECTRONIC DEVICE OF AN ADVANCED DRIVING ASSISTANCE SYSTEM OF A VEHICLE Texa S.p.A. DYER, ANDREW R 3662 §102§103§112 Non-Final OA — Pending May 16, 2025
19192936 GRIPPING SYSTEM FOR COMPRESSION MOLDING OF SLABS OF COMPOSITE MATERIAL Leonardo S.p.A. KIM, YUNJU 1742 §103§112 Non-Final OA — Pending Apr 29, 2025
19185825 CONTAINER WITH ATTACHMENT MECHANISM FOR FACILITATING COLD THERAPY Arctic Shower LLC NIA, ALIREZA 3786 §103 Non-Final OA — Pending Apr 22, 2025
19106451 WAFER INSPECTION DEVICE AND WAFER TRANSPORT DEVICE Nanosystem Solutions, Inc. KOSKY, JUSTIN THOMAS §102§103§112 Non-Final OA — Pending Apr 11, 2025
19171798 AN APPARATUS FOR SEMICONDUCTOR SOLVENT PROCESSING UTILIZED FOR 3D AND TRADITIONAL PROCESS FLOWS VEECO INSTRUMENTS INC. GOLIGHTLY, ERIC WAYNE 1711 §103§112 Non-Final OA — Pending Apr 07, 2025
18852378 SURFACE-COATED CUTTING TOOL Mitsubishi Materials Corporation WANG, XIAOBEI 1784 §102§103§112 Non-Final OA — Pending Apr 02, 2025
19097291 CONTAINER AND ICE MAKER Bestqi Innovation Technology (Shenzhen) Co., Ltd. MOORE, ADAM DORREL 3763 §102§103 Non-Final OA — Pending Apr 01, 2025
19115077 RADIO-CONTROLLED VEHICLE Mdb Srl MATTHEWS, TERRELL HOWARD 3653 §103§112 Non-Final OA — Pending Mar 25, 2025
19114714 Protease-conditional targeted nucleic acid recombination, method and uses thereof Instituto De Biologia Experimental E Tecnológica – Ibet STEADMAN, DAVID J 1656 §102§103§112 Non-Final OA — Pending Mar 24, 2025
19111629 VEHICLE CONTROL SYSTEM Hitachi Astemo, Ltd. CROMER, ANDREW J 3667 §102§103§112 Non-Final OA — Pending Mar 13, 2025
19108279 EXPLAINABLE DEEP LEARNING METHOD FOR NON-INVASIVE DETECTION OF PULMONARY HYPERTENSION FROM HEART SOUNDS Aalborg University DOUGHERTY, SEAN PATRICK 3791 §101§103§112 Non-Final OA — Pending Mar 03, 2025
19106872 A MECHANICALLY SWITCHED SUPERCONDUCTING FLUX PUMP Victoria Link Limited MOODY, KYLE J 2838 §102 Non-Final OA — Pending Feb 26, 2025
19103018 METHOD FOR REDUCTION OF FUEL CONSUMPTION OF A VEHICLE Iveco S.p.A. VAN BRAMER, JOHN W 3622 §101§103§112 Non-Final OA — Pending Feb 11, 2025
18995595 DISPLAY PANEL AND DISPLAY DEVICE BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD. SITTA, GRANT 2622 §103 Non-Final OA — Pending Jan 16, 2025
19013697 METHOD FOR BOWEL PREPARATION Msm Innovations, Inc. ROSENTHAL, ANDREW S 1613 DP Non-Final OA — Pending Jan 08, 2025
18992048 PLANAR COIL ARRAY AND DISPLACEMENT SENSOR Hitachi Astemo, Ltd. RAJAPUTRA, SURESH KS 2858 §103 Non-Final OA — Pending Jan 07, 2025
18880121 METHOD TO OBTAIN A SKIN ELECTRODE PATCH AND RESPECTIVE SKIN ELECTRODE PATCH UNIVERSIDADE DE COIMBRA BLAISE, BRADFORD CHRISTOPHER 3794 §103§112 Non-Final OA — Pending Dec 30, 2024
18984265 ROAD VEHICLE IMPROVED TO REDUCE VIBRATION AND UNWANTED NOISE IN THE CABIN Ferrari S.p.A. IRVIN, THOMAS W 3616 §102§103§112 Non-Final OA — Pending Dec 17, 2024
18875516 CARRIER MATERIAL FOR LOCALLY RELEASING PARTICULATE SUBSTANCE Gellycle Co., Ltd. MERCIER, MELISSA S 1615 §102§103§112 Non-Final OA — Pending Dec 16, 2024
18978489 CAR WITH BATTERY INTEGRATED IN THE UNDER-DOOR SIDE MEMBERS Ferrari S.p.A. WU, LORI SOUTHARD 3655 §102§103 Non-Final OA — Pending Dec 12, 2024
18874470 SOLAR COLLECTOR ARRANGEMENT University Of Pretoria DAM, DUSTIN Q 1721 §102§103§112 Final Rejection — Pending Dec 12, 2024
18977599 Methods and Kits for Wrapping and Transporting a Handroll Jomasa LLC SMITH, CHAIM A 1791 §102§103§112 Non-Final OA — Pending Dec 11, 2024
18970291 THERMAL STRIPPING UREA PLANT AND PROCESS Stamicarbon B.V. ROBINSON, RENEE E 1772 §112Other Non-Final OA — Pending Dec 05, 2024
18967738 GENERATION OF LUNG ORGANOIDS FROM PLURIPOTENT STEM CELLS AND USE THEREOF The Trustees of Columbia University in the City of New York KIM, TAEYOON 1631 §103§112 Non-Final OA — Pending Dec 04, 2024
18968601 BATTERY PACK FOR A ROAD VEHICLE WITH ELECTRIC PROPULSION AND ELECTRICALLY PROPELLED ROAD VEHICLE PROVIDED WITH SAID BATTERY PACK Ferrari S.p.A. JOHNS, HILARY LYNN 3613 §103 Non-Final OA — Pending Dec 04, 2024
18968719 UMBRELLA WITH ANTI-INVERSION ASSEMBLY Shedrain Corporation JACKSON, DANIELLE 3636 §102§103§112 Non-Final OA — Pending Dec 04, 2024
18869875 BIDIRECTIONAL FEEDBACK SYSTEM AND RESPECTIVE METHOD UNIVERSIDADE DE COIMBRA EGLOFF, PETER RICHARD 3715 §102§103§112 Non-Final OA — Pending Nov 27, 2024
18962042 MOTOR VEHICLE PASSENGER COMPARTMENT WITH PILLARS PROVIDED WITH COVERING ELEMENTS FOR ABSORBING IMPACTS Ferrari S.p.A. DANIELS, JASON S 3612 §103 Non-Final OA — Pending Nov 27, 2024
18869087 MYCELIAL FOOD SUBSTITUTE AND A METHOD OF ITS PRODUCTION Bumble Be GmbH PRAKASH, SUBBALAKSHMI 1793 §103 Non-Final OA — Pending Nov 25, 2024
18868112 DOSAGE FORMS FOR TOPICAL ADMINISTRATION OF PENTACYCLIC TRITERPENES Giuliani S.p.A. PROSSER, ALISSA J 1619 §103DP Final Rejection — Pending Nov 21, 2024
18866723 Non-Invasive Intranasal Neuromodulation System Icahn School Of Medicine AT Mount Sinai HUSSAINI, ATTIYA SAYYADA 3792 §102§103 Non-Final OA — Pending Nov 18, 2024
18865294 SUBSEA CONFIGURATION FOR FLOATING STRUCTURES OF AN OFFSHORE WIND FARM TotalEnergies OneTech SAS GLOVER, SHANNA DANIELLE 3615 §102§103§112 Non-Final OA — Pending Nov 12, 2024
18929316 SYSTEMS AND METHODS FOR NEUROLOGIC REHABILITATION Medrhythms, Inc. MELHUS, BENJAMIN S 3791 §102Other Non-Final OA — Pending Oct 28, 2024
18927152 SPLICING APPARATUS FOR SPLICING MATERIAL WEBS FOR THE PRODUCTION OF POWER STORAGE DEVICES, MACHINE COMPRISING THE SPLICING APPARATUS AND RELATIVE SPLICING METHOD Manz Italy S.r.l. RIVERA, WILLIAM ARAUZ 3654 §103§112 Non-Final OA — Pending Oct 25, 2024
18926843 ELECTRONIC APPARATUS Beijing Eswin Computing Technology Co., Ltd. AL-TAWEEL, MUAAMAR QAHTAN 2838 §102 Non-Final OA — Pending Oct 25, 2024
18575145 METHOD FOR THE IN SITU REGENERATION OF AN ADSORBENT MEDIUM Suez International DRODGE, JOSEPH W 1773 §102§103§112 Non-Final OA — Pending Oct 24, 2024

View all 266 →

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Frequently Asked Questions

What is Leason Ellis, LLP's patent allowance rate?

88.0% of resolved applications prosecuted by Leason Ellis, LLP were allowed, across 10,348 applications in USPTO records.

How many office actions does Leason Ellis, LLP average before allowance?

2.83 office actions per allowed application on average.

How many pending office actions does Leason Ellis, LLP have?

266 pending office actions as of October 2026, for 172 clients, before 249 examiners in 157 art units.

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