Prosecution Insights
Last updated: May 29, 2026

Examiner: DARNELL, BAILEIGH K

Tech Center 1700 • Art Units: 1742 1743 1781 1789

This examiner grants 70% of resolved cases

Performance Statistics

69.7%
Allow Rate
+4.7% vs TC avg
402
Total Applications
+26.1%
Interview Lift
1026
Avg Prosecution Days
Based on 376 resolved cases, 2023–2026

Rejection Statute Breakdown

0.5%
§101 Eligibility
23.4%
§102 Novelty
70.5%
§103 Obviousness
3.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17975024 SUBSTRATES AND SPACERS FOR USE WITHIN A THREE-DIMENSIONAL PRINTING RESERVOIR ASSEMBLY Final Rejection SprintRay Inc.
18864673 METHOD FOR MANUFACTURING A WIND TURBINE BLADE AND MOLD ARRANGEMENT Non-Final OA Siemens Gamesa Renewable Energy A/S
18835239 METHODS AND COLORING SUSPENSIONS FOR COLORING CURABLE BINDER COMPOSITIONS IN ADDITIVE MANUFACTURING PROCESSES Non-Final OA SIKA TECHNOLOGY AG
18862992 PROCESS FOR PRODUCING, AT THE END OF A STRUCTURE, A MICRO-OR NANO-COMPONENT MADE OF VITREOUS MATERIAL PRODUCED BY MULTI-PHOTON PHOTOPOLYMERIZATION Non-Final OA UNIVERSITE DE LILLE
18842752 COMPACTING BUILD MATERIAL Non-Final OA Peridot Print LLC
18853632 METHOD FOR PRODUCING A DETERGENT-PORTION UNIT Non-Final OA HENKEL AG & CO. KGAA
18849449 METHOD OF MANUFACTURING A HYBRID INORGANIC-POLYMERIC MEMBRANE Non-Final OA FUNDACIÓN CENTRO DE INVESTIGACIÓN COOPERATIVA DE ENERGÍAS ALTERNATIVAS CIC ENERGIGUNE FUNDAZIOA
18843724 Methods and system for producing clothes and fabrics Non-Final OA Loophole Ltd.
18646331 3D PRINTER WITH HEAD CARRIAGE WITH FILAMENT CUTTER AND REMOVABLE PRINT HEAD Non-Final OA Stratasys, Inc.
18767620 NOZZLE BOX DEVICE AND STRETCHING UNIT Non-Final OA BRÜCKNER MASCHINENBAU GmbH
18716362 GLASS FIBER RECLAMATION SYSTEM AND METHOD Non-Final OA COMPOSITE RECYCLING SA
18704995 Method for producing carbonised or graphitised 3D objects Non-Final OA Nippon Kornmeyer Carbon Group GmbH
18004820 THERMOPLASTIC POLYESTER FOR PRODUCING 3D-PRINTED OBJECTS Non-Final OA ROQUETTE FRERES
18599140 DEVICES, SYSTEMS, PROCESSES, AND METHODS RELATING TO 3D PRINTERS COMPRISING PRESSURIZED RESIN PRODUCTION OF THREE-DIMENSIONAL TARGET OBJECTS Non-Final OA Kinetic 3D LLC
18429842 METHOD OF MAKING A SELF-FILLING CANDLE Non-Final OA Afton Candle Inc.
16134451 THREE DIMENSIONAL PRINTING Final Rejection MARKFORGED, INC.
18263390 A METHOD FOR PRODUCING A SOLID POLYURETHANE COMPOSITE CONTAINING BIOMASS AND A SOLID POLYURETHANE COMPOSITE PRODUCED BY SAID METHOD AND A METHOD OF PRODUCING A FOAMED POLYURETHANE COMPOSITE CONTAINING BIOMASS AND A FOAMED POLYURETHANE COMPOSITE PRODUCED BY SAID METHOD Non-Final OA NEXTGEN MATERIALS SPÓLKA Z OGRANICZONA ODPOWIEDZIALNOSCIA
18331016 Three dimensional printer Non-Final OA Winsun technology INC.
17942281 ADDITIVE MANUFACTURING SYSTEM WITH FLOW CONTROL AND ADDITIVE INJECTION DEVICE Final Rejection TRIEX, LLC

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