Prosecution Insights
Last updated: April 19, 2026

Examiner: CHU, KATHERINE J

Tech Center 3600 • Art Units: 3671

This examiner grants 46% of resolved cases

Performance Statistics

46.5%
Allow Rate
-5.5% vs TC avg
545
Total Applications
+20.4%
Interview Lift
964
Avg Prosecution Days
Based on 507 resolved cases, 2023–2026

Rejection Statute Breakdown

0.4%
§101 Eligibility
18.6%
§102 Novelty
54.2%
§103 Obviousness
24.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18332384 CONCRETE SLAB LOAD TRANSFER AND CONNECTION APPARATUS Non-Final OA Illinois Tool Works Inc.
17894743 DOWEL SYSTEM Non-Final OA Illinois Tool Works Inc.
17347490 LIGHTWEIGHT VAULT COVER Non-Final OA Hubbell Incorporated
18335090 ADJUSTABLE CROSS-FRAME ASSEMBLY AND METHOD OF USE THEREOF Non-Final OA University of Notre Dame du Lac
18062267 RAMP APPARATUS FOR VEHICLE Non-Final OA PHA Co., Ltd.
18026545 REACTIVE COLD-APPLIED THERMOPLASTIC BOND COAT Non-Final OA GCP Applied Technologies Inc.
17767781 FLEXIBLE TENSIONED CRASH BARRIER Final Rejection ROBOS INTERNATIONAL LIMITED
18264177 PASSENGER BOARDING BRIDGE Non-Final OA SHINMAYWA INDUSTRIES, LTD.
18240596 LAYERED MATERIAL Non-Final OA Heritage Research Group,LLC
18454677 Speed Bump Non-Final OA Brady Corporation Ltd.
17675517 HAND HELD SCREED RAKING DEVICE FOR APPLYING PAVING MATERIAL TO A SURFACE Non-Final OA Axenox, LLC.
17628166 ANTI-AGING AGENTS FOR ASPHALT BINDERS Final Rejection Ergon, Inc.
18253191 LOADING RAMP WITH INSULATION Non-Final OA HÖRMANN ALKMAAR BV
18139910 CONCRETE TOOL ASSEMBLY AND METHOD OF FORMING ASSEMBLY Non-Final OA Baron Innovative Technology LP
18121592 CONSTRUCTION METHOD OF DRIVING ROAD IN AIR Non-Final OA HYUNDAI ENGINEERING CO., LTD.
18148113 RAMPS TO FACILITATE CROSSING THRESHOLDS OF SLIDING DOORS Non-Final OA Handi Products, Inc.
17910783 LOAD-BEARING PLATE WITH CELLULAR STRUCTURE AND ITS MANUFACTURING PROCESS Non-Final OA ISOKON, D.O.O., SLOVENSKE KONJICE
17794462 BARRIER ELEMENT TO BLOCK TRAFFIC AND/OR AS A SECURITY PRECAUTION INCLUDING A BALLAST COMPARTMENT Non-Final OA Roadblock Solutions, Inc.
17664864 PORCELAIN TILE INSTALLATIONS FOR VEHICULAR USE Non-Final OA SiteOne Landscape Supply, LLC
17651706 Methods For Preparing and Installing a Natural Stone Surface and a Tiled Natural Stone Paving System Therefor Final Rejection Michael Allan WELSH
17525422 MOBILE CONCRETE DISTRIBUTION SYSTEM Final Rejection EZ Placer, LLC
17258886 Barrier System and Barrier System Installation Method Final Rejection Bunzl IP Holdings, LLC

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