Prosecution Insights
Last updated: October 27, 2026

Kate Elizabeth Strachan, USPTO Patent Examiner

Listed by the USPTO as STRACHAN, KATE ELIZABETH

Tech Center 3700 • Art Units: 3781 3791 3796

This examiner grants 50% of resolved cases

Analysis

STRACHAN, KATE ELIZABETH handles cases in tech center 3700 and art unit 3781. The profile covers 115 resolved cases, with an allowance rate of 49.6% and a median of 1400 days to allowance. The allowance figure shows that prosecution outcomes are mixed in this record, and the median indicates that applicants should plan for a comparatively extended examination timeline within the available data.

The interview lift is 31.5%, making interview practice a material consideration when developing prosecution strategy for this examiner. The listed companies are The Procter & Gamble Company, Shifamed Holdings LLC, and Samsung Display Co., Ltd. The listed firms are PERKINS COIE LLP - Shifamed Holdings, LLC, BakerHostetler, and BURR & FORMAN - MAGNERA CORPORATION.

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

Performance Statistics

49.6%
Allow Rate
-20.4% vs TC avg
159
Total Applications
+31.5%
Interview Lift
1400
Avg Prosecution Days
Based on 115 resolved cases, 2023–2026

Rejection Statute Breakdown

1.9%
§101 Eligibility
17.7%
§102 Novelty
71.5%
§103 Obviousness
8.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18447803 WEARABLE DEVICE INCLUDING AN IMAGE DISPLAY MODULE Non-Final OA Samsung Display Co., LTD.
18116902 MOVING BLOOD COMPONENT COLLECTION LOOP HOLDER Non-Final OA Terumo BCT, Inc.
18628984 ABSORBENT ARTICLES COMPRISING A LAYERED FLUID ACQUISITION/DISTRIBUTION SYSTEM AND METHODS FOR MAKING SAME Final Rejection The Procter & Gamble Company
18513340 SHUNT BARREL SENSOR IMPLANT ANCHORING Final Rejection EDWARDS LIFESCIENCES CORPORATION
18826105 Automated Fluid Output Monitoring Non-Final OA C. R. Bard, Inc.
18290595 IMPLANTABLE SHUNTS WITH MULTI-LAYERED FLUID RESISTORS, AND ASSOCIATED SYSTEMS AND METHODS Final Rejection Shifamed Holdings, LLC
18572101 ADJUSTABLE SHUNTING SYSTEMS WITH CONTROL ELEMENTS, AND ASSOCIATED SYSTEMS AND METHODS Non-Final OA Shifamed Holdings, LLC
18593104 FILMS WITH MALODOR CONTROL Final Rejection Berry Global, Inc.
17620127 AN OSTOMY APPLIANCE Non-Final OA Coloplast A/S
18867588 SYSTEMS AND METHODS FOR CALCULATING VOLUMES OF EXCRETED URINE AND STOOL Non-Final OA DUKE UNIVERSITY
17525946 CATHETER ASSEMBLY Non-Final OA TELEFLEX LIFE SCIENCES UNLIMITED COMPANY

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Frequently Asked Questions

What is examiner Kate Elizabeth Strachan's allowance rate?

49.6% of resolved applications examined by Kate Elizabeth Strachan were allowed (115 resolved cases), compared with 50.6% across Art Unit 3781 over the last five years.

Does an interview help with examiner Kate Elizabeth Strachan?

This examiner's interview lift is +31.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Kate Elizabeth Strachan take to allow a patent?

Applications allowed by Kate Elizabeth Strachan took 1,400 days on average from filing to allowance.

Which art unit does examiner Kate Elizabeth Strachan work in?

Kate Elizabeth Strachan examines applications in Art Unit 3781 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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