Prosecution Insights
Last updated: May 29, 2026

Examiner: FREAY, CHARLES GRANT

Tech Center 3700 • Art Units: 3746 3753

This examiner grants 77% of resolved cases

Performance Statistics

77.1%
Allow Rate
+7.1% vs TC avg
1,270
Total Applications
+30.7%
Interview Lift
1079
Avg Prosecution Days
Based on 1247 resolved cases, 2023–2026

Rejection Statute Breakdown

1.2%
§101 Eligibility
5.2%
§102 Novelty
52.7%
§103 Obviousness
26.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19210510 ROTARY COMPRESSOR HAVING FLAT MUFFLER Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
19239152 MACHINE FOR EXPANDING OR COMPRESSING COMPRESSIBLE MEDIA Non-Final OA BITZER Kuehlmaschinenbau GmbH
19238919 Method for Operating a Vacuum Pump, as well as a Vacuum Pump Designed for this Purpose with Two Inlets and One Outlet, its Use and Vacuum Packaging Machines Equipped Therewith Non-Final OA Busch Produktions GmbH
18583488 SYSTEMS AND METHODS OF UTILIZATION OF A HYDRAULIC FRACTURING UNIT PROFILE TO OPERATE HYDRAULIC FRACTURING UNITS Non-Final OA BJ Energy Solutions, LLC
19120059 SCROLL PUMP AND SCROLL PUMP INLET VALVE Non-Final OA Edwards Limited
19118697 ELECTRIC COMPRESSOR Non-Final OA SANDEN CORPORATION
19105515 VARIABLE DISPLACEMENT OIL PUMP AND METHOD FOR PRODUCING VARIABLE DISPLACEMENT OIL PUMP Non-Final OA HITACHI ASTEMO, LTD.
19074456 COMPRESSOR AND CONTROLLING METHOD OF VOLUME RATIO THEREOF Non-Final OA Fu Sheng Industrial Co. Ltd.
18688104 DEVICE AND METHOD FOR CONTROLLING OPERATIONAL VIBRATIONS OF A PUMP OR PUMP ASSEMBLY Final Rejection GRUNDFOS HOLDING A/S
18876665 ROLLING PISTON ROTARY COMPRESSOR Non-Final OA Diego Willian da Silva
18911498 Check Valve for a Refrigerant Compressor Non-Final OA BITZER Kühlmaschinenbau GmbH
18576413 INTEGRALLY GEARED COMPRESSOR WITH AN AXIAL COMPRESSOR UNIT AND METHOD Final Rejection NUOVO PIGNONE TECNOLOGIE SRL
18266431 CANNULATION SYSTEMS AND METHODS Non-Final OA Vitara Biomedical, Inc.
18033528 DRUG DELIVERY BALLOON CATHETER Non-Final OA THE CHLOROPLASTPTE. LTD.
17088934 COMPACT ELECTRIC HYDRAULIC FRACTURING TRAILER Final Rejection U.S. Well Services, LLC

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