Prosecution Insights
Last updated: October 25, 2026

Kathryn Elizabeth Chambers, USPTO Patent Examiner

Listed by the USPTO as CHAMBERS, KATHRYN ELIZABETH

Tech Center 2900 • Art Units: 2913 2915 2934 2938

This examiner grants 100% of resolved cases

Analysis

Kathryn Elizabeth Chambers is a patent examiner in Art Unit 2913 within Tech Center 2900. The examiner has 107 resolved cases. The allowance rate for these cases is 100.0 percent. This figure represents the proportion of applications that reach a grant. Practitioners can use this percentage to assess the probability of success for applications assigned to this examiner.

The data shows an interview lift of 0.0 percent. This metric indicates the change in the allowance rate when an interview is conducted during prosecution. The median days to allowance is 858. This pendency figure provides a baseline for applicants to estimate the duration of the process from filing to the issuance of a patent. This timeline is a factor for managing expectations regarding the speed of the grant process.

Shenzhen Intellirocks Tech. Co., Ltd. and Ayrton are top companies appearing in this examiner's portfolio. Legal representation is provided by firms such as IPHORGAN LTD. and OpenPTO US LLC. These entities and firms are the primary participants in the 107 resolved cases. These data points establish a foundation for developing a prosecution strategy for design patents.

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

Performance Statistics

100.0%
Allow Rate
+40.0% vs TC avg
110
Total Applications
+0.0%
Interview Lift
858
Avg Prosecution Days
Based on 107 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
4.7%
§102 Novelty
1.6%
§103 Obviousness
85.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
35527680 Wall lamp Final Rejection Shenzhen Intellirocks Tech. Co., Ltd.
35526613 Searchlight Final Rejection AYRTON

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Who Appears Before This Examiner

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Frequently Asked Questions

What is examiner Kathryn Elizabeth Chambers's allowance rate?

100.0% of resolved applications examined by Kathryn Elizabeth Chambers were allowed (107 resolved cases), compared with 94.4% across Art Unit 2913 over the last five years.

Does an interview help with examiner Kathryn Elizabeth Chambers?

This examiner's interview lift is +0.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Kathryn Elizabeth Chambers take to allow a patent?

Applications allowed by Kathryn Elizabeth Chambers took 858 days on average from filing to allowance.

Which art unit does examiner Kathryn Elizabeth Chambers work in?

Kathryn Elizabeth Chambers examines applications in Art Unit 2913 in Tech Center 2900.

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