Prosecution Insights
Last updated: October 27, 2026

Michael L Leonard, USPTO Patent Examiner

Listed by the USPTO as LEONARD, MICHAEL L

Tech Center 1700 • Art Units: 1692 1746 1748 1761 1763 1787 1796

This examiner grants 64% of resolved cases

Analysis

LEONARD, MICHAEL L is assigned to Tech Center 1700 and Art Unit 1692. The profile records 1359 resolved cases, a 63.7% allowance rate, and an 8.3% interview lift. The median time to allowance is 1147 days. The substantial case record provides a broad basis for interpreting the allowance measure, while the interview figure indicates a limited reported change associated with interviews.

The listed companies are Arkema France, BASF SE, and Covestro AG. The listed firms are OLIFF PLC, THE WEBB LAW FIRM, P.C., and Bryan Cave Leighton Paisner LLP (DC). Counsel may emphasize written claim strategy and careful prior-art analysis, using interviews selectively where a focused discussion can clarify an issue. The allowance rate shows that successful outcomes occur within the record, but the median timing figure calls for planning around a prolonged prosecution cycle.

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

Performance Statistics

63.7%
Allow Rate
-1.3% vs TC avg
1,419
Total Applications
+8.3%
Interview Lift
1147
Avg Prosecution Days
Based on 1359 resolved cases, 2023–2026

Rejection Statute Breakdown

1.3%
§101 Eligibility
19.2%
§102 Novelty
52.7%
§103 Obviousness
18.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19304387 POLYMER, PREPARATION METHOD, DISPERSANT, POSITIVE ELECTRODE SLURRY, POSITIVE ELECTRODE PLATE, SECONDARY BATTERY, AND POWER CONSUMING APPARATUS Final Rejection CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18569085 POLYESTER COMPOUNDS AND THEIR USES Final Rejection BASF SE
18266826 COLOR-STABLE CURING AGENT COMPOSITIONS COMPRISING POLYISOCYANATES OF (CYCLO)ALIPHATIC DIISOCYANATES Final Rejection BASF SE
17760787 SPRAY POLYURETHANE ELASTOMERS AND METHODS FOR PRODUCING THE SAME Final Rejection BASF SE
18725166 High Bio-Content Polyurethane Hot Melt Adhesive Composition Final Rejection Henkel AG & Co. KGaA
18697544 POLYESTER COPOLYMER HAVING IMPROVED EXTRUSION PROCESSABILITY, COMPRISING RECYCLED MONOMER Non-Final OA SK CHEMICALS CO., LTD.
18694260 POLYLACTIC ACID RESIN, POLYLACTIC ACID RESIN COMPOSITION, POLYLACTIC ACID RESIN FILM, AND MOLDED ARTICLE Non-Final OA SK CHEMICALS CO., LTD.
18288034 HYDROPHILIC POLY(THIOKETAL) URETHANE SCAFFOLDS AND METHODS OF USE THEREOF Non-Final OA Vanderbilt University
18699997 POLYESTER POLYCARBONATE POLYOL Non-Final OA ASAHI KASEI KABUSHIKI KAISHA
18575612 SILANE MODIFIED ALIPHATIC POLYUREA Final Rejection EVONIK OPERATIONS GMBH
18023334 PHOSPHATE-CONTAINING BIOMIMETIC POLYMERS AND USES THEREOF Non-Final OA Purdue Research Foundation
18690619 Production of a Blocked Curing Agent Based on a Partly Organic-Based Polyisocyanate and Use as a 1K PUR Baking Enamel Non-Final OA Covestro Deutschland AG
18572238 Coating Agents and Coatings That Are Obtainable Therefrom and Have Improved Resistance to Soiling and (Self-) Cleaning Properties Non-Final OA COVESTRO DEUTSCHLAND AG
18278482 Low Viscosity Catalyst Compositions for Producing Isocyanurate Polymers Final Rejection Covestro Deutschland AG
18839678 MOISTURE CURABLE POLYURETHANE HOT-MELT ADHESIVE HAVING IMPROVED INITIAL STRENGTH Non-Final OA SIKA TECHNOLOGY AG
18694221 MOISTURE CURABLE POLYURETHANE HOT-MELT ADHESIVE HAVING IMPROVED HEAT STABILITY Non-Final OA SIKA TECHNOLOGY AG
18578412 POLYISOCYANURATE PLASTICS WITH HIGH TRANSPARENCY Final Rejection SIKA TECHNOLOGY AG
18609413 THERMOPLASTIC POLYURETHANE RESIN AND METHOD FOR PRODUCING THE SAME Non-Final OA NAN YA PLASTICS CORPORATION
18696207 MONOMER FOR OPTICAL COMPONENT, POLYMERIZABLE COMPOSITION FOR OPTICAL COMPONENT, CURED PRODUCT, SPECTACLE LENS, AND METHOD FOR PRODUCING MONOMER FOR OPTICAL COMPONENT Non-Final OA HOYA LENS THAILAND LTD.
18704028 POLYLACTIDE RESIN COMPOSITION, AND METHOD FOR PREPARING THE SAME Non-Final OA LG CHEM, LTD.
18561675 PHOPHORUS CONTAINING MONOMER OR OLIGOMER, POLYESTER RESIN COMPRISING SAME, AND THERMOPLASTIC RESIN COMPOSITION Non-Final OA LG CHEM, LTD.
18254543 POLYIMIDE-BASED POLYMER FILM, SUBSTRATE FOR DISPLAY DEVICE, AND OPTICAL DEVICE USING THE SAME Non-Final OA LG CHEM, LTD.
18712081 ADHESIVE, MULTILAYER BODY AND PACKAGING MATERIAL Non-Final OA DIC Corporation
18712050 ADHESIVE, LAMINATE, LAMINATE MANUFACTURING METHOD, AND PACKAGING MATERIAL Non-Final OA DIC Corporation
18269091 COMPOSITION, AND OPTICAL MATERIAL AND LENS USING SAME Non-Final OA MITSUBISHI GAS CHEMICAL COMPANY, INC.
18540190 LIGNIN-DERIVED AND PERFORMANCE-ENHANCED NON-ISOCYANATE POLYURETHANE THERMOSETS Non-Final OA UNIVERSITY OF DELAWARE
18863384 Thermoplastic Polyurethane and Uses Thereof Non-Final OA Huntsman International LLC
18699896 PROCESS FOR CONSECUTIVE BATCH PRODUCTION OF POLYAMIDE Non-Final OA INV Nylon Polymers Americas, LLC

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Frequently Asked Questions

What is examiner Michael L Leonard's allowance rate?

63.7% of resolved applications examined by Michael L Leonard were allowed (1,359 resolved cases), compared with 71.8% across Art Unit 1692 over the last five years.

Does an interview help with examiner Michael L Leonard?

This examiner's interview lift is +8.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Michael L Leonard take to allow a patent?

Applications allowed by Michael L Leonard took 1,147 days on average from filing to allowance.

Which art unit does examiner Michael L Leonard work in?

Michael L Leonard examines applications in Art Unit 1692 in Tech Center 1700 (Chemistry & Materials).

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