Prosecution Insights
Last updated: August 18, 2026

Examiner: CASTELLANO, STEPHEN J

Tech Center 3700 • Art Units: 3733 3781

This examiner grants 65% of resolved cases

Performance Statistics

65.1%
Allow Rate
-4.9% vs TC avg
1,274
Total Applications
+35.8%
Interview Lift
1096
Avg Prosecution Days
Based on 1233 resolved cases, 2023–2026

Rejection Statute Breakdown

0.2%
§101 Eligibility
25.5%
§102 Novelty
41.5%
§103 Obviousness
26.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18973704 HYDROGEN TANK Final Rejection TOYOTA JIDOSHA KABUSHIKI KAISHA
18644966 TANK COMPRISING INNER AND OUTER ENCLOSURES AND AT LEAST ONE DUCT PASSING THROUGH SAID ENCLOSURES AND FOLLOWING A CURVED TRAJECTORY BETWEEN SAID ENCLOSURES Final Rejection Airbus Operations SAS
18292673 Bearing for Pressure Vessel and Pressure Vessel Assembly Final Rejection Bayerische Motoren Werke Aktiengesellschaft
18871596 MULTIPLE-SHELL TANK AND HEAT INSULATION MATERIAL SUPPLY METHOD FOR MULTIPLE-SHELL TANK Non-Final OA KAWASAKI JUKOGYO KABUSHIKI KAISHA
18674152 FOLDABLE CONTAINER Non-Final OA Sonoco Development, Inc.
19146358 CONTAINER, CLOSURE, AND METHODS OF MANUFACTURE Non-Final OA H.J. Heinz Company Brands LLC
19095649 CONTAINER Final Rejection BERRY GLOBAL, INC.
19183216 TRANSPORTABLE TEST ARRANGEMENT Non-Final OA PROVENTIA OY
19083234 CONTAINER Final Rejection KWANTEX RESEARCH INC.
18285059 IMPROVEMENTS IN OR RELATING TO CONTAINERS Final Rejection LOADHOG LIMITED

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