Prosecution Insights
Last updated: October 26, 2026

Peter Y Choi, USPTO Patent Examiner

Listed by the USPTO as CHOI, PETER Y

Tech Center 1700 • Art Units: 1742 1743 1744 1786 1789 1794

This examiner grants 20% of resolved cases

Analysis

CHOI, PETER Y is assigned to Tech Center 1700 and Art Unit 1742. The profile includes 662 resolved cases, a 20.4% allowance rate, and a median of 1715 days to allowance. The interview lift is 32.5%, indicating a positive association that may help guide prosecution planning.

Kuraray Co., Ltd., Owens Corning Intellectual Capital LLC, and Seiko Epson Corporation are the listed leading companies. Calfee, Halter & Griswold LLP, Morgan, Lewis & Bockius LLP (WA), and RENNER, OTTO, BOISSELLE & SKLAR, LLP are the listed leading firms. The low allowance rate and long timing measure support early attention to claim strategy and continued-prosecution planning.

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

Performance Statistics

20.4%
Allow Rate
-44.6% vs TC avg
745
Total Applications
+32.5%
Interview Lift
1715
Avg Prosecution Days
Based on 662 resolved cases, 2023–2026

Rejection Statute Breakdown

0.1%
§101 Eligibility
11.7%
§102 Novelty
55.4%
§103 Obviousness
31.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18418958 COMPOSITION, PRETREATMENT AGENT SET, PRETREATMENT METHOD, AND IMAGE FORMING METHOD Non-Final OA BROTHER KOGYO KABUSHIKI KAISHA
18168219 ACOUSTIC MATCHING LAYER MATERIAL, ACOUSTIC MATCHING SHEET, COMPOSITION FOR FORMING ACOUSTIC MATCHING SHEET, ACOUSTIC WAVE PROBE, ACOUSTIC WAVE MEASUREMENT APPARATUS, AND MANUFACTURING METHODS OF ACOUSTIC MATCHING LAYER MATERIAL AND ACOUSTIC WAVE PROBE Non-Final OA FUJIFILM Corporation
18397694 Thixotropically Molded Product And Thixotropic Molding Material Non-Final OA SEIKO EPSON CORPORATION
17773605 ADHESIVE COMPOSITION FOR TIRE CORD, TIRE CORD, AND TIRE Non-Final OA KOLON INDUSTRIES, INC.
18622999 EXTERNAL DETECTION APPARATUS FOR VEHICLE Final Rejection Honda Motor Co., Ltd.
17102833 ABSORBENT ARTICLES COMPRISING STRETCH LAMINATES Final Rejection The Procter & Gamble Company
17902069 FIBER-REINFORCED COMPOSITE MATERIAL AND METHOD OF MANUFACTURING SAME Non-Final OA KIA CORPORATION
18849797 FIBER-REINFORCED RESIN STRUCTURE AND METHOD FOR PRODUCING FIBER-REINFORCED RESIN STRUCTURE Non-Final OA TORAY INDUSTRIES, INC.
18267798 CONJUGATE FIBER AND MULTIFILAMENT Non-Final OA Toray Industries, Inc.
18266836 RESIN COMPOSITION, RESIN COMPOSITION MOLDED BODY, POWER CABLE, AND METHOD OF PRODUCING POWER CABLE Non-Final OA SUMITOMO ELECTRIC INDUSTRIES, LTD.
18211899 INSULATION MATERIALS FOR A VACUUM INSULATED STRUCTURE AND METHODS OF FORMING Final Rejection WHIRLPOOL CORPORATION
18790206 PRODUCT BASED ON MINERAL FIBERS AND PROCESS FOR OBTAINING IT Final Rejection SAINT-GOBAIN ISOVER
19125683 NON-FLUORINE WATER-REPELLENT COMPOSITION AND METHOD FOR PRODUCING WATER-REPELLENT FIBER PRODUCT Non-Final OA NICCA CHEMICAL CO., LTD.
19116313 INFARED SHIELDING FIBER STRUCTURE AND CLOTHING EMPLOYING SAME Non-Final OA SUMITOMO METAL MINING CO., LTD.
19114186 RECYCLABLE THREAD AND TEXTILES MADE THEREOF Non-Final OA J. & P. COATS LIMITED
18550271 METHOD FOR TREATING FABRICS Final Rejection SPECIALTY OPERATIONS FRANCE
18851559 SPUN-BOND NON-WOVEN FABRIC, HYGIENIC MATERIAL, AND METHOD FOR PRODUCING SPUN-BOND NON-WOVEN FABRIC Non-Final OA MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD.

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Frequently Asked Questions

What is examiner Peter Y Choi's allowance rate?

20.4% of resolved applications examined by Peter Y Choi were allowed (662 resolved cases), compared with 58.3% across Art Unit 1742 over the last five years.

Does an interview help with examiner Peter Y Choi?

This examiner's interview lift is +32.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Peter Y Choi take to allow a patent?

Applications allowed by Peter Y Choi took 1,715 days on average from filing to allowance.

Which art unit does examiner Peter Y Choi work in?

Peter Y Choi examines applications in Art Unit 1742 in Tech Center 1700 (Chemistry & Materials).

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