Prosecution Insights
Last updated: October 26, 2026

Xiaowei Su, USPTO Patent Examiner

Listed by the USPTO as SU, XIAOWEI

Tech Center 1700 • Art Units: 1733 1744 1784

This examiner grants 72% of resolved cases

Analysis

SU, XIAOWEI is assigned to tech center 1700 and art unit 1733. The profile records 783 resolved cases, an allowance rate of 71.9%, and a median of 1201 days to allowance. The substantial record indicates generally favorable outcomes in the available data, while the median reflects a prosecution timeline that can extend beyond a year and should be incorporated into planning.

Interviews are associated with a 12.6% lift. JFE Steel Corporation, NIPPON STEEL Corporation, and TDK Corporation are the listed companies. BIRCH STEWART KOLASCH & BIRCH, LLP, Buchanan Ingersoll & Rooney PC, and Davidson Kappel LLC are the listed firms. These names provide a practical reference set for counsel and applicant activity.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Performance Statistics

71.9%
Allow Rate
+6.9% vs TC avg
859
Total Applications
+12.6%
Interview Lift
1201
Avg Prosecution Days
Based on 783 resolved cases, 2023–2026

Rejection Statute Breakdown

0.5%
§101 Eligibility
11.5%
§102 Novelty
48.4%
§103 Obviousness
24.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17796389 HOT ISOSTATIC PRESSING HEAT TREATMENT OF BARS MADE FROM TITANIUM ALUMINIDE ALLOY FOR LOW-PRESSURE TURBINE BLADES FOR A TURBOMACHINE Final Rejection Safran Aircraft Engines
18645540 Method For Manufacturing Three-Dimensional Shaped Object Non-Final OA SEIKO EPSON CORPORATION
18764382 METHOD FOR PRODUCING REFINED ALUMINUM ALLOY Non-Final OA HONDA MOTOR CO., LTD.
18358191 MAGNETIC CORE AND MAGNETIC COMPONENT Final Rejection TDK CORPORATION
18339765 MAGNETIC CORE AND MAGNETIC DEVICE Non-Final OA TDK CORPORATION
18703904 PRODUCTION METHOD FOR FINE METAL PARTICLES Final Rejection MITSUBISHI HEAVY INDUSTRIES, LTD.
17939029 IRON-BASED RARE EARTH BORON-BASED ISOTROPIC MAGNET ALLOY Final Rejection Murata Manufacturing Co., Ltd.
18696997 INFORMATION PROCESSING METHOD, INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING PROGRAM, AND METHOD OF OPERATING A BLAST FURNACE Non-Final OA JFE STEEL CORPORATION
18692925 STEEL SHEET, MEMBER, AND METHODS FOR MANUFACTURING THEM Non-Final OA JFE Steel Corporation
18691606 STEEL SHEET FOR HOT PRESSING AND METHOD FOR PRODUCING THE SAME, AND HOT-PRESSED MEMBER AND METHOD FOR PRODUCING THE SAME Non-Final OA JFE Steel Corporation
18570350 NON-ORIENTED ELECTRICAL STEEL SHEET AND PRODUCTION METHOD THEREOF Final Rejection JFE Steel Corporation
18248524 SOFT MAGNETIC IRON Non-Final OA JFE STEEL CORPORATION
18716603 Steelmaking method and associated network of plants Non-Final OA ArcelorMittal
17610906 A COLD ROLLED MARTENSITIC STEEL AND A METHOD OF MARTENSITIC STEEL THEREOF Non-Final OA ArcelorMittal
17736347 FE-BASED ALLOY AND ELECTRONIC COMPONENT INCLUDING THE SAME Final Rejection SAMSUNG ELECTRO-MECHANICS CO., LTD.
18694489 AGGLOMERATED ORE AND METHOD FOR PRODUCING SAME Non-Final OA NIPPON STEEL CORPORATION
18692990 STEEL MATERIAL FOR SLIDING PART AND METHOD OF MANUFACTURING STEEL MATERIAL FOR SLIDING PART Non-Final OA NIPPON STEEL CORPORATION
18279757 NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME Final Rejection NIPPON STEEL CORPORATION
18278326 STEEL SHEET, STEEL MEMBER, AND COATED STEEL MEMBER Non-Final OA NIPPON STEEL CORPORATION
18637062 HOT STAMPING ALLOY WITH IMPROVED WELDABILITY AND PARTS MADE FROM SUCH ALLOY Final Rejection GM GLOBAL TECHNOLOGY OPERATIONS LLC

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Frequently Asked Questions

What is examiner Xiaowei Su's allowance rate?

71.9% of resolved applications examined by Xiaowei Su were allowed (783 resolved cases), compared with 48.5% across Art Unit 1733 over the last five years.

Does an interview help with examiner Xiaowei Su?

This examiner's interview lift is +12.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Xiaowei Su take to allow a patent?

Applications allowed by Xiaowei Su took 1,201 days on average from filing to allowance.

Which art unit does examiner Xiaowei Su work in?

Xiaowei Su examines applications in Art Unit 1733 in Tech Center 1700 (Chemistry & Materials).

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