Prosecution Insights
Last updated: October 26, 2026

Katarzyna I Kolb, USPTO Patent Examiner

Listed by the USPTO as KOLB, KATARZYNA I

Tech Center 1700 • Art Units: 1731 1746 1763 1767 1789 1796

This examiner grants 45% of resolved cases

Analysis

KOLB, KATARZYNA I handles cases in tech center 1700 and art unit 1731. The profile records 223 resolved cases, an allowance rate of 45.3%, and a median of 1374 days to allowance. The allowance rate indicates that allowance occurred in fewer than half of the resolved matters, while the median reflects a lengthy prosecution path.

The interview lift is 17.2%, showing a positive association with allowance even within this lower-allowance record. Practitioners may use interviews to clarify the scope of proposed amendments and reduce avoidable disagreement. The listed companies are Seiko Epson Corporation, Mitsubishi Chemical Corporation, and Bridgestone Corporation. The associated firms are BIRCH STEWART KOLASCH & BIRCH, LLP, OBLON, MCCLELLAND, MAIER & NEUSTADT, L.L.P., and EVERSHEDS SUTHERLAND (US) LLP.

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

Performance Statistics

45.3%
Allow Rate
-19.7% vs TC avg
285
Total Applications
+17.2%
Interview Lift
1374
Avg Prosecution Days
Based on 223 resolved cases, 2023–2026

Rejection Statute Breakdown

1.3%
§101 Eligibility
21.8%
§102 Novelty
50.5%
§103 Obviousness
15.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18020599 (METH)ACRYLATE STRUCTURAL ADHESIVES AND METHODS Non-Final OA 3M INNOVATIVE PROPERTIES COMPANY
18757700 Molding Material Final Rejection SEIKO EPSON CORPORATION
18756155 Molding Material Non-Final OA SEIKO EPSON CORPORATION
18473339 MOLDING MATERIAL Non-Final OA SEIKO EPSON CORPORATION
18166005 CAPILLARY UNDERFILL FORMULATIONS THAT INCLUDE CARBON NANOTUBES, CONTAINERS, AND METHODS Final Rejection Intel Corporation
18291316 RUBBER COMPOSITION FOR TIRE AND TIRE Final Rejection BRIDGESTONE CORPORATION
18551866 RUBBER COMPOSITION, RUBBER-METAL COMPOSITE, TIRE, HOSE, AND CRAWLER Final Rejection BRIDGESTONE CORPORATION
18124000 PROCESS FOR MAKING MULTILAYER POLYMER PARTICLES IN AQUEOUS MEDIUM Final Rejection BASF SE
18660874 FLUOROELASTOMER CROSSLINKABLE COMPOSITION AND MOLDED ARTICLE Non-Final OA DAIKIN INDUSTRIES, LTD.
18677590 RESIN COMPOSITION, MOLDED ARTICLE, AND PELLET Non-Final OA MITSUBISHI CHEMICAL CORPORATION
18468841 RESIN COMPOSITION, CURED PRODUCT SHEET, COMPOSITE MOLDED BODY, AND SEMICONDUCTOR DEVICE Non-Final OA Mitsubishi Chemical Corporation
17920002 ELASTOMER COMPOSITION AND SEALING MATERIAL COMPRISING SAME Final Rejection MITSUBISHI CABLE INDUSTRIES, LTD.
17915984 RAPID HYDROPHOBIC SURFACE MODIFICATION COMPOSITIONS AND METHODS OF USE THEREOF Non-Final OA Energizer Auto, Inc.
18284468 THERMOPLASTIC ELASTOMER COMPOSITION AND APPLICATION THEREOF Final Rejection MITSUI CHEMICALS, INC.

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Frequently Asked Questions

What is examiner Katarzyna I Kolb's allowance rate?

45.3% of resolved applications examined by Katarzyna I Kolb were allowed (223 resolved cases), compared with 55.4% across Art Unit 1731 over the last five years.

Does an interview help with examiner Katarzyna I Kolb?

This examiner's interview lift is +17.2 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Katarzyna I Kolb take to allow a patent?

Applications allowed by Katarzyna I Kolb took 1,374 days on average from filing to allowance.

Which art unit does examiner Katarzyna I Kolb work in?

Katarzyna I Kolb examines applications in Art Unit 1731 in Tech Center 1700 (Chemistry & Materials).

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