Prosecution Insights
Last updated: October 26, 2026

Matthew John Kasztejna, USPTO Patent Examiner

Listed by the USPTO as KASZTEJNA, MATTHEW JOHN

Tech Center 3900 • Art Units: 1742 3725 3739 3779 3795 3799 3993

This examiner grants 64% of resolved cases

Analysis

Matthew John Kasztejna works in tech center 3900 and art unit 1742, with 907 resolved cases. The allowance rate is 64.5%, and the median time to allowance is 1303 days. Interview lift is 13.1%, showing a positive but limited association between interviews and allowance outcomes.

The principal companies are Nestlé S.A., KARSTEN MANUFACTURING Corporation, and Pacesetter Inc. The principal firms are AKERMAN LLP, COLLARD & ROE, P.C., and Dority & Manning, P.A. and Haier US Appliance. Applicants may pair interview requests with precise written explanations, while planning for the median timing shown here.

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

Performance Statistics

64.5%
Allow Rate
+4.5% vs TC avg
947
Total Applications
+13.1%
Interview Lift
1303
Avg Prosecution Days
Based on 907 resolved cases, 2023–2026

Rejection Statute Breakdown

0.7%
§101 Eligibility
24.5%
§102 Novelty
43.5%
§103 Obviousness
20.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18258097 SYSTEM FOR DISPENSING INDIVIDUAL PORTIONS OF BEVERAGES PRECURSOR Non-Final OA SOCIETE DES PRODUITS NESTLE S.A.
18591535 COOKING VESSEL Non-Final OA WHIRLPOOL CORPORATION

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Frequently Asked Questions

What is examiner Matthew John Kasztejna's allowance rate?

64.5% of resolved applications examined by Matthew John Kasztejna were allowed (907 resolved cases), compared with 58.3% across Art Unit 1742 over the last five years.

Does an interview help with examiner Matthew John Kasztejna?

This examiner's interview lift is +13.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Matthew John Kasztejna take to allow a patent?

Applications allowed by Matthew John Kasztejna took 1,303 days on average from filing to allowance.

Which art unit does examiner Matthew John Kasztejna work in?

Matthew John Kasztejna examines applications in Art Unit 1742 in Tech Center 3900.

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