Prosecution Insights
Last updated: October 25, 2026

Best & Flanagan LLP

Technology areas: Chemistry & Materials • Medical Devices & Mechanical Engineering

22 pending office actions • 17 clients • 22 examiners • 18 art units • 0 of 22 (0%) have an AI response strategy ready • 1 patents granted in the last 365 days

Analysis

Best & Flanagan LLP has 10,127 career applications and 22 pending office actions in Chemistry & Materials. The application history is extensive, while the pending docket identifies a smaller set of matters currently requiring prosecution attention within the reported profile.

The firm’s resolved allowance rate is 85.93%, and its average is 1.6 office actions per allowance. These figures indicate both the resolved allowance outcome and the office-action effort associated with allowed matters. The average provides a useful planning signal for response work, but clients should still review the chemical or materials subject matter and the particular examination issues presented by their applications.

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

Quality Metrics (n=10127 apps, methodology: how we score firms)

85.9%
Allowance Rate
n=10127
+0.50σ
Allowance Rate (norm)
n=10127
1.6
OAs to Allowance
n=8476
-1.04σ
OAs to Allow (norm)
n=8476
851 days
Time to Allowance
n=8476
+5.1pp
Interview Lift
n=10127
4.6%
RCE Rate
n=10127
0.8%
Appeal Rate
n=10127

Rejection Performance (% of received rejections ultimately overcome)

73.9%
§101 Overcome
n=184
79.9%
§102 Overcome
n=2289
78.8%
§103 Overcome
n=3613
83.0%
§112 Overcome
n=2552

Specialization & Scale

Y10T, B25B, A63B
Top CPC Subclasses
11%
Top-3 CPC Share
n=10127
0
Practitioners
n=10127
—
Apps / Practitioner
n=10127 (min 20)

Portfolio Summary

22
Total Pending OAs
15
Non-Final OAs
7
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 2 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

1
Overdue
0
Due this week
1
Due this month
0
Due in next 60 days
0
Due later

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.

16
Hard (73%)
5
Medium (23%)
1
Easy (5%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 + other2 (9%)
§103 only4 (18%)
§102 only1 (5%)
§112 only1 (5%)
Multi-statute (no §101)14 (64%)

Industry Mix

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

10
Life Sciences
45% of docket
1
Information Tech
5% of docket
1
Communications
5% of docket
0
Semiconductors
0% of docket
9
Mechanical / Eng
41% of docket
1
Business / Other
5% 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.

220 h
Manual time on pending OAs
44 h
Time saved (low, 20%)
77 h
Time saved (mid, 35%)
1.9 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
ARAQUE JR, GERARDO 1 9.4% +15.7%
LYNCH, ROBERT A 1 80.3% +12.9%
HOLLM, JONATHAN ADAM 1 50.5% +52.7%
HANSEN, JAMES ORVILLE 1 70.5% +21.8%
DORNBUSCH, DIANNE 1 74.0% +35.2%
ARCE, MARLON ALEXANDER 1 85.5% +11.0%
CAHN, DANIEL P 1 53.6% +69.9%
MERCIER, MELISSA S 1 72.1% +5.8%
RUSSELL, STEPHEN MATTHEW 1 63.2% +34.6%
EBBINGHAUS, BRIANA NOEL 1 59.7% +63.0%

Hard Cases (16)

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
18457403 PREPARATION METHOD OF BATTERY COMPOSITE MATERIAL AND PRECURSOR THEREOF MCCARTY, PATRICK M 20d
19108569 METHOD FOR METAL RECYCLING AND REGENERATION PRODUCTION TRACEABILITY WITH CARBON DISCLOSURE ARAQUE JR, GERARDO —
19108394 CAPSULE KNOTTING MODULE LYNCH, ROBERT A —
19108379 CAPSULE KNOTTING MODULE HOLLM, JONATHAN ADAM —
19060124 STORAGE APPARATUS HANSEN, JAMES ORVILLE —
19038123 Stone Removal Device DORNBUSCH, DIANNE —
18971216 Bicycle wire-holding seat and a headset thereof ARCE, MARLON ALEXANDER —
18920333 MULTI-FUNCTIONAL HAND CART CAHN, DANIEL P —

Interview Candidates (9)

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
18247581 Automatic Forming Machine for Pulp Molding Product RUSSELL, STEPHEN MATTHEW 28d overdue
19108569 METHOD FOR METAL RECYCLING AND REGENERATION PRODUCTION TRACEABILITY WITH CARBON DISCLOSURE ARAQUE JR, GERARDO —
19108394 CAPSULE KNOTTING MODULE LYNCH, ROBERT A —
19108379 CAPSULE KNOTTING MODULE HOLLM, JONATHAN ADAM —
19060124 STORAGE APPARATUS HANSEN, JAMES ORVILLE —
19038123 Stone Removal Device DORNBUSCH, DIANNE —
18971216 Bicycle wire-holding seat and a headset thereof ARCE, MARLON ALEXANDER —
18920333 MULTI-FUNCTIONAL HAND CART CAHN, DANIEL P —

Client Portfolio (17 clients)

Top Art Units

Art UnitApps
37613
37712
36291
36371
36111
36341
16151
17481
16131
17981

Pending Office Actions

App #TitleClientExaminerArt UnitStatutesStatusDue inAIFiled
19108569 METHOD FOR METAL RECYCLING AND REGENERATION PRODUCTION TRACEABILITY WITH CARBON DISCLOSURE Hf Investment Ltd. ARAQUE JR, GERARDO 3629 §101§103§112 Non-Final OA — Pending Mar 04, 2025
19108394 CAPSULE KNOTTING MODULE Matrixlabs Medical Inc. LYNCH, ROBERT A 3771 §102§112Other Non-Final OA — Pending Mar 03, 2025
19108379 CAPSULE KNOTTING MODULE Matrixlabs Medical Inc. HOLLM, JONATHAN ADAM §102§112 Non-Final OA — Pending Mar 03, 2025
19060124 STORAGE APPARATUS Liv Lifestyle Co. HANSEN, JAMES ORVILLE 3637 §102§103§112 Non-Final OA — Pending Feb 21, 2025
19038123 Stone Removal Device Silver Bell Enterprise Inc. DORNBUSCH, DIANNE 3771 §103§112 Non-Final OA — Pending Jan 27, 2025
18971216 Bicycle wire-holding seat and a headset thereof Glory Wheel Enterprise Co., Ltd. ARCE, MARLON ALEXANDER 3611 §102§112 Non-Final OA — Pending Dec 06, 2024
18920333 MULTI-FUNCTIONAL HAND CART Liv Lifestyle Co. CAHN, DANIEL P 3634 §102§112 Non-Final OA — Pending Oct 18, 2024
18802834 Exosomes for treating glioblastoma multiforme and manufacturing method thereof China Medical University MERCIER, MELISSA S 1615 §103§112 Final Rejection — Pending Aug 13, 2024
18247581 Automatic Forming Machine for Pulp Molding Product Foshan City Meiwanbang Technology Co., Ltd. RUSSELL, STEPHEN MATTHEW 1748 §102 Final Rejection 28d overdue Pending Aug 07, 2024
18761628 CELL REPAIR-PROMOTING EXTRACELLULAR VESICLE, PRODUCTION METHOD, PREPARATION, AND USE THEREOF China Medical University EBBINGHAUS, BRIANA NOEL 1613 §101§103§112 Non-Final OA — Pending Jul 02, 2024
18723663 Integrated Automated Cell Culture Device Medigen Biotechnology Corp. TURK, NEIL N 1798 §103§112 Non-Final OA — Pending Jun 24, 2024
18644887 ALUMINUM ALLOY DEOXIDIZER WITH CARBON COMPOUNDS Hf Investment Co., Ltd. MORALES, RICARDO D 1738 §103 Non-Final OA — Pending Apr 24, 2024
18583546 NETWORK CONNECTION MODULE AND METHOD FOR SELECTING BRIDGING POINT THEREOF Gunitech Corp. WEI, SIREN 2467 §103§112 Non-Final OA — Pending Feb 21, 2024
18434050 SOLUTION FOR PRESERVING EXTRACELLULAR VESICLES/EXOSOMES, METHOD FOR PRESERVING THE SAME, AND MIXED SOLUTION THEREOF China Medical University AZPURU, CARLOS A 1617 §103§112 Non-Final OA — Pending Feb 06, 2024
18433038 LENS HEATING DEVICE FOR A VEHICLE LAMP Min Hsiang Corporation WUNDERLICH, ERWIN J 3761 §102§103§112 Non-Final OA — Pending Feb 05, 2024
18426696 NANO-CATALYSTS SYNTHESIS METHOD National Taiwan University Of Science And Technology BAUM, ZACHARY JOHN 1736 §112 Final Rejection — Pending Jan 30, 2024
18392285 DIGITAL CIRCUIT FOR MULTIPLE ANTENNA REMOTE RADIO HEAD AND RADIO UNIT Ranictek Inc. AHN, SUNG S 2631 §103 Final Rejection — Pending Dec 21, 2023
18540048 BUFFERING DEVICE FOR FILTER BOTTLE Ching-Hsiung Lin GURTOWSKI, RICHARD C 1773 §103 Final Rejection — Pending Dec 14, 2023
18457403 PREPARATION METHOD OF BATTERY COMPOSITE MATERIAL AND PRECURSOR THEREOF Advanced Lithium Electrochemistry Co., Ltd. MCCARTY, PATRICK M 1774 §102§103§112 Non-Final OA 20d Pending Aug 29, 2023
18353961 SAUNA HEATER Dcc Technology Co., Ltd. BOSS, MARISSA RAE 3761 §103§112 Non-Final OA — Pending Jul 18, 2023
18172408 Method for Stabilizing an Electrode Using a Functional Layer, the Electrode, and Applications Thereof National Taiwan University Of Science And Technology RUFO, LOUIS J 1795 §102§112 Final Rejection — Pending Feb 22, 2023
18168365 Adjusting Device of Imitation Flame of Electric Fireplace Uni-Splendor Corporation MITCHUM, DREW JOSEPH 3761 §103 Final Rejection — Pending Feb 13, 2023

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Frequently Asked Questions

What is Best & Flanagan LLP's patent allowance rate?

85.9% of resolved applications prosecuted by Best & Flanagan LLP were allowed, across 10,127 applications in USPTO records.

How many office actions does Best & Flanagan LLP average before allowance?

1.60 office actions per allowed application on average.

How many pending office actions does Best & Flanagan LLP have?

22 pending office actions as of October 2026, for 17 clients, before 22 examiners in 18 art units.

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