Prosecution Insights
Last updated: April 19, 2026

Examiner: ZHENG, LOIS L

Tech Center 2800 • Art Units: 1733 1738 1759 1793 2812

This examiner grants 68% of resolved cases

Performance Statistics

67.7%
Allow Rate
At TC average
780
Total Applications
+13.4%
Interview Lift
1394
Avg Prosecution Days
Based on 739 resolved cases, 2023–2026

Rejection Statute Breakdown

0.4%
§101 Eligibility
20.9%
§102 Novelty
55.2%
§103 Obviousness
13.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18290418 ALUMINUM ALLOY, METHOD FOR MANUFACTURING SAME, AND PARTS USING SAME Non-Final OA LG ELECTRONICS INC.
18326507 COLORMETRIC METHODS TO PREDICT COATING AND BOND PERFORMANCE PROPERTIES Non-Final OA The Boeing Company
17788678 ALUMINUM ALLOY FOIL Non-Final OA DAI NIPPON PRINTING CO., LTD.
18213430 RECYCLED ALUMINUM COMPOSITION FOR COMPUTER CHASSIS Non-Final OA DELL PRODUCTS L.P.
18213400 RECYCLED ALUMINUM COMPOSITION FOR COMPUTER CHASSIS Non-Final OA DELL PRODUCTS L.P.
18213419 RECYCLED ALUMINUM COMPOSITION FOR COMPUTER CHASSIS Non-Final OA DELL PRODUCTS L.P.
18400580 ALUMINUM COATED BLANK AND MANUFACTURING METHOD THEREOF Non-Final OA Hyundai Steel Company
18041297 FUNCTIONALLY GRADIENT ALUMINUM ALLOY PRODUCTS AND METHODS OF MAKING Non-Final OA Novelis Inc.
17998590 ALUMINUM ALLOY PRETREATMENT WITH PHOSPHORUS- CONTAINING ORGANIC ACIDS FOR SURFACE MODIFICATION Non-Final OA Novelis Inc.
18322772 Workpiece Plating Treatment Method and Workpiece Manufacturing Method Non-Final OA Tyco Electronics (Shanghai) Co., Ltd.
17759465 METHOD FOR THE SURFACE TREATMENT OF ALUMINIUM-BASED PARTS Non-Final OA SAFRAN AEROSYSTEMS
18951989 Dyed Trivalent Chromium Conversion Coatings and Methods of Using Same Non-Final OA Chemeon Surface Technology, LLC
17907105 CONVERSION COATING FOR CANS CONTAINING HYDROGEN SULFIDE PRODUCING LIQUIDS Final Rejection PPG Industries Ohio, Inc.
18288467 Aluminum Casting Alloy for Near Net Shaped Casting of Structural or Non-structural Components Non-Final OA McMaster University
18175261 SYSTEM AND METHOD OF COATING AN AUTOMOTIVE PART WITH IRON OXIDE FOR AN ELECTRIC DRIVE UNIT OF A VEHICLE Non-Final OA GM Global Technology Operations LLC
18165696 RESOURCE-SAVING METHOD FOR ZINC PHOSPHATING OF A METAL SURFACE Non-Final OA Henkel AG & Co. KGaA
18250478 TREATMENT OF METALLIC SURFACES BY OH-FUNCTIONAL COPOLYMER CONTAINING ACIDIC AQUEOUS COMPOSITIONS Non-Final OA CHEMETALL GMBH
18003662 Improved Activation Agent for Manganese Phosphating Processes Non-Final OA CHEMETALL GMBH
17904969 ONE-STEP PRETREATMENT METHOD OF METALLIC SUBSTRATES FOR METAL COLD FORMING Non-Final OA CHEMETALL GMBH
18565137 ELECTRICALLY INSULATING COATING FOR ANISOTROPIC ELECTRICAL STEEL Non-Final OA PUBLIC JOINT-STOCK COMPANY "NOVOLIPETSK STEEL"
18289430 HIGH-STRENGTH ALUMINUM ALLOY FOR 3D PRINTING, AND MANUFACTURING METHOD THEREFOR Non-Final OA ACTS TECHNOLOGIES INC.
18385720 ALUMINUM LITHIUM ALLOY AND ALUMINUM COPPER ALLOY PARTS PRODUCED USING SOLID STATE MANUFACTURING Non-Final OA MELD MANUFACTURING CORPORATION
18479211 MATERIAL FOR METAL LINE, METAL LINE IN SEMICONDUCTOR DEVICE AND METHOD FOR FORMING METAL LINE IN SEMICONDUCTOR DEVICE Non-Final OA HUIZHOU TOP METAL MATERIAL CO., LTD.
18281588 MICRO-MOLYBDENUM-TYPE WEATHERING BRIDGE STEEL PLATE AND PREPARATION METHOD THEREOF Non-Final OA NANJING IRON & STEEL CO., LTD.
18261657 400 MPa CORROSION-RESISTANT STEEL BAR AND PRODUCTION METHOD THEREOF Non-Final OA JIANGSU SHAGANG GROUP CO., LTD.
18214091 HIGH CONDUCTIVITY MAGNESIUM ALLOY Non-Final OA Terves, LLC
18342511 6xxx Alloy With High Recycled Material Content Non-Final OA Kaiser Aluminum Fabricated Products, LLC
17955561 PROCESSING METHOD FOR FLUORINATION OF FLUORINATION-TARGET COMPONENT AND FLUORINATED COMPONENT OBTAINED THEREBY Final Rejection WONIK QNC Corporation

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