Prosecution Insights
Last updated: April 19, 2026

Examiner: DARNELL, BAILEIGH K

Tech Center 1700 • Art Units: 1742 1743 1781

This examiner grants 70% of resolved cases

Performance Statistics

69.6%
Allow Rate
+4.6% vs TC avg
400
Total Applications
+26.4%
Interview Lift
1094
Avg Prosecution Days
Based on 372 resolved cases, 2023–2026

Rejection Statute Breakdown

0.7%
§101 Eligibility
20.1%
§102 Novelty
49.4%
§103 Obviousness
25.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18573671 TISSUE-ENGINEERED SCAFFOLDS AND METHODS OF MAKING Non-Final OA GEORGIA TECH RESEARCH CORPORATION
17975024 SUBSTRATES AND SPACERS FOR USE WITHIN A THREE-DIMENSIONAL PRINTING RESERVOIR ASSEMBLY Final Rejection SprintRay Inc.
17621124 BEAM LATTICE DATA IN ADDITIVE MANUFACTURING Final Rejection Hewlett-Packard Development Company, L.P.
18352995 Modular Metal 3-D Printer Build Plate Non-Final OA Relativity Space, 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
18741958 Method for processing planar material webs made of a fiber-containing material Final Rejection Kiefel GmbH
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.
18842752 COMPACTING BUILD MATERIAL Non-Final OA Peridot Print LLC
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
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.
18202334 EXTRUSION DEVICE AND 3D PRINTER Non-Final OA Shenzhen Anycubic Technology Co., Ltd.
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
17535526 HEIGHT ADJUSTMENT IN A METHOD OF THREE DIMENSIONAL PRINTING Final Rejection CHROMATIC 3D MATERIALS, INC.

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