Prosecution Insights
Last updated: October 26, 2026

Keira Eileen Callison, USPTO Patent Examiner

Listed by the USPTO as CALLISON, KEIRA EILEEN

Tech Center 3700 • Art Units: 3700 3785

This examiner grants 22% of resolved cases

Analysis

Keira Eileen Callison has resolved 23 cases in Art Unit 3700, where the allowance rate is 21.7 percent. This rate is established within Tech Center 3700 and involves a median pendency of 1350 days to allowance. The data also shows an interview lift of 85.7 percent.

The 85.7 percent interview lift suggests that direct communication is an effective strategy for improving the 21.7 percent base allowance rate. Practitioners should prioritize interviews to navigate the 1350-day median wait. This lift is a key metric for the 23 resolved cases currently in this examiner's portfolio.

ResMed Pty Ltd., Fisher & Paykel Healthcare Limited, and Embr Labs Ip LLC are the top companies in this docket. Firms such as Nixon & Vanderhye, PC and Via LLP frequently handle these cases. Wolf Greenfield & Sacks, P.C. also appears as a primary firm managing the 21.7 percent allowance rate.

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

Performance Statistics

21.7%
Allow Rate
-48.3% vs TC avg
66
Total Applications
+85.7%
Interview Lift
1350
Avg Prosecution Days
Based on 23 resolved cases, 2023–2026

Rejection Statute Breakdown

8.5%
§101 Eligibility
18.3%
§102 Novelty
53.1%
§103 Obviousness
19.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17832829 MULTI-MODE MEDICAL GAS DELIVERY WITH NON-INVASIVE VENTILATION Final Rejection KONINKLIJKE PHILIPS N.V.
18444395 SYSTEM AND DEVICE INCLUDING THERMAL FLOW SENSING AND INTERNAL PRESSURE SENSING Non-Final OA ZOLL Medical Corporation
17650104 AIRWAY ADAPTER Final Rejection NIHON KOHDEN CORPORATION
18456260 WEARABLE STABILIZATION ASSEMBLY AND SYSTEM Non-Final OA GM Global Technology Operations LLC

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Who Appears Before This Examiner

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Frequently Asked Questions

What is examiner Keira Eileen Callison's allowance rate?

21.7% of resolved applications examined by Keira Eileen Callison were allowed (23 resolved cases), compared with 66.1% across Art Unit 3700 over the last five years.

Does an interview help with examiner Keira Eileen Callison?

This examiner's interview lift is +85.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Keira Eileen Callison take to allow a patent?

Applications allowed by Keira Eileen Callison took 1,350 days on average from filing to allowance.

Which art unit does examiner Keira Eileen Callison work in?

Keira Eileen Callison examines applications in Art Unit 3700 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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