Prosecution Insights
Last updated: October 27, 2026

Nicholas L Foster, USPTO Patent Examiner

Listed by the USPTO as FOSTER, NICHOLAS L

Tech Center 3600 • Art Units: 3617 3674 3675

This examiner grants 76% of resolved cases

Analysis

Nicholas L. Foster serves in Art Unit 3617 of Tech Center 3600. The examiner has 771 resolved cases and an allowance rate of 75.5 percent. The median time to reach an allowance is 996 days, which is a key metric for planning prosecution timelines.

The interview lift of 24.6 percent suggests that direct communication is highly effective. This figure indicates that interviews can significantly enhance the already strong 75.5 percent baseline allowance rate. Practitioners should consider interviews to address rejections and navigate the 996-day median pendency.

Top companies appearing before this examiner include NOK Corporation, Safran S.A., and Illinois Tool Works Inc. Frequent legal representation is provided by BIRCH STEWART KOLASCH & BIRCH, LLP, BREINER & BREINER, L.L.C., and Cantor Colburn LLP - Pratt & Whitney. These entities are prominent in the 771 cases resolved by the examiner.

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

Performance Statistics

75.5%
Allow Rate
+23.5% vs TC avg
808
Total Applications
+24.6%
Interview Lift
996
Avg Prosecution Days
Based on 771 resolved cases, 2023–2026

Rejection Statute Breakdown

0.1%
§101 Eligibility
24.3%
§102 Novelty
38.6%
§103 Obviousness
34.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18847976 SEAL COMPRISING A SUCCESSION OF ZONES WITH AND WITHOUT ANTI-FRICTION COATINGS Final Rejection SAFRAN NACELLES
19246364 Fastener, Fastening Assembly and Vehicle Non-Final OA Illinois Tool Works Inc.
18422766 Tolerance Compensation Assembly and Fastening System Final Rejection Illinois Tool Works Inc.
19134210 SEAL ARRANGEMENT Non-Final OA Schaeffler Technologies AG & Co. KG
18576359 FASTENING ARRANGEMENT COMPRISING A THREAD-FORMING SCREW AND A CURED ALUMINATE-CONTAINING INORGANIC COMPOSITION Non-Final OA HILTI AKTIENGESELLSCHAFT
19166272 SEALING STRUCTURE Non-Final OA NOK CORPORATION
19140759 SEALING DEVICE Non-Final OA NOK CORPORATION
18634181 PISTON RING WITH INTEGRATED ANTI-ROTATION FEATURE Non-Final OA Pratt & Whitney Canada Corp.
19051154 SEALING STRUCTURES FOR PROCESSING CHAMBERS Non-Final OA Applied Materials, Inc.
18419080 SCREW WITH TOOL-LESS INSTALLATION FEATURES Final Rejection Dell Products L.P.
18669749 WATER STOP MOUNTING STRUCTURE OF BOLT TO PLATE-LIKE METAL MEMBER Final Rejection Aoyama Seisakusho Co., Ltd.
18441975 BLIND FASTENER Final Rejection Centrix AeroSpace LLC

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Who Appears Before This Examiner

Top companies before this examiner

Law firms appearing most often

Frequently Asked Questions

What is examiner Nicholas L Foster's allowance rate?

75.5% of resolved applications examined by Nicholas L Foster were allowed (771 resolved cases), compared with 61.5% across Art Unit 3617 over the last five years.

Does an interview help with examiner Nicholas L Foster?

This examiner's interview lift is +24.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Nicholas L Foster take to allow a patent?

Applications allowed by Nicholas L Foster took 996 days on average from filing to allowance.

Which art unit does examiner Nicholas L Foster work in?

Nicholas L Foster examines applications in Art Unit 3617 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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