Prosecution Insights
Last updated: October 02, 2026

Examiner: COOLEY, CHARLES E

Tech Center 3700 • Art Units: 1736 1774 1791 1797 3761 3762

This examiner grants 79% of resolved cases

Analysis

Charles E. Cooley has resolved 1507 cases in Tech Center 3700. His examination history in Art Unit 1736 shows an allowance rate of 79.0 percent. This figure is a primary indicator for applicants to use when evaluating the likelihood of a favorable outcome and for preparing for the prosecution process.

The median days to allowance for this examiner is 1034. This timeframe is essential for practitioners to consider when advising clients on the expected duration of the patenting process. A timeline of 1034 days helps in setting realistic goals for the various stages of prosecution and for budgeting legal expenses over the life of the application.

The interview lift for this examiner is 15.2 percent. This represents a notable increase over the 79.0 percent allowance rate, indicating that interviews are an effective method for resolving issues. The 15.2 percent lift suggests that practitioners should consider personal communication with the examiner to clarify technical disagreements and move the application toward a grant.

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

Performance Statistics

79.0%
Allow Rate
+9.0% vs TC avg
1,543
Total Applications
+15.2%
Interview Lift
1034
Avg Prosecution Days
Based on 1507 resolved cases, 2023–2026

Rejection Statute Breakdown

0.8%
§101 Eligibility
26.3%
§102 Novelty
33.5%
§103 Obviousness
29.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17861923 CONCRETE VIBRATOR Final Rejection MILWAUKEE ELECTRIC TOOL CORPORATION
18116006 DIRECT CHARGE CONCRETE MIXER Non-Final OA Oshkosh Corporation
18431838 METHOD AND APPARATUS FOR BIOLOGICAL CELL HARVESTING Non-Final OA Genentech, Inc.
18648511 IMPELLER ASSEMBLY AND BATTERY SLURRY MIXING AND STIRRING EQUIPMENT HAVING SAME Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18714995 A CENTRIFUGAL SEPARATOR AND AN INTERFACE LEVEL SENSOR Non-Final OA Alfa Laval Corporate AB
18691321 A CENTRIFUGAL SEPARATOR HAVING A HERMETIC INLET AND OUTLET Non-Final OA ALFA LAVAL CORPORATE AB
18691355 A CENTRIFUGAL SEPARATOR Non-Final OA Alfa Laval Corporate AB
18690063 METHOD OF CONCENTRATING A PLANT-BASED PROTEIN SUSPENSION Non-Final OA ALFA LAVAL CORPORATE AB
18569447 CENTRIFUGAL SEPARATOR Non-Final OA Alfa Laval Corporate AB
18290520 A CENTRIFUGAL SEPARATOR Final Rejection ALFA LAVAL CORPORATE AB
18286423 MODULAR CENTRIFUGAL SEPARATOR SYSTEM AND EXCHANGEABLE SEPARATION INSERT Non-Final OA Alfa Laval Corporate AB
18510597 MIXING DEVICE AND BEVERAGE MIXING APPARATUS INCLUDING THE SAME Final Rejection WISTRON CORPORATION
18705505 Actuator For A Dual Pump Dispensing System Non-Final OA ELC Management LLC
18420050 Packaging Tray for a Blood Processing Kit Non-Final OA Fenwal, Inc.
18563711 AMMONIA MIXING SYSTEM AND USE THEREOF Non-Final OA CASALE SA
18502493 DISPERSING DEVICE AND PULPING MACHINE Non-Final OA ONGOAL TECHNOLOGY CO., LTD.

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