Prosecution Insights
Last updated: October 26, 2026

Baileigh K Darnell, USPTO Patent Examiner

Listed by the USPTO as DARNELL, BAILEIGH K

Tech Center 3700 • Art Units: 1742 1743 1744 1781 1789 2874 3733

This examiner grants 70% of resolved cases

Analysis

DARNELL, BAILEIGH K is a Tech Center 3700 examiner in Art Unit 1742 with 393 resolved cases. The allowance rate is 70.2%, and the median time to allowance is 1025 days. The profile gives practitioners a useful basis for planning claim development and anticipating the timing of substantive prosecution.

The interview lift is 25.9%, indicating a positive association with interviews. A focused discussion may help isolate the examiner’s concerns and support a more efficient written response.

Canon Inc., Siemens Gamesa Renewable Energy S.A., and The Regents of the University of California are the listed companies. NIXON & VANDERHYE, PC, AKA CHAN LLP, and AMIN, TUROCY & WATSON, LLP are the listed firms.

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

Performance Statistics

70.2%
Allow Rate
At TC average
427
Total Applications
+25.9%
Interview Lift
1025
Avg Prosecution Days
Based on 393 resolved cases, 2023–2026

Rejection Statute Breakdown

1.0%
§101 Eligibility
21.2%
§102 Novelty
51.4%
§103 Obviousness
23.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18958638 LIQUID EJECTING APPARATUS, FORMING APPARATUS, CONTROL METHOD, AND ARTICLE MANUFACTURING METHOD Non-Final OA CANON KABUSHIKI KAISHA
18864673 METHOD FOR MANUFACTURING A WIND TURBINE BLADE AND MOLD ARRANGEMENT Final Rejection Siemens Gamesa Renewable Energy A/S
18959285 IN VIVO 3D BIOPRINTING DEVICE AND METHOD Final Rejection THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
18991511 OPERATION MECHANISM, BLOW MOLDING MECHANISM, SPLIT MOLD, AND MOLD UNIT Non-Final OA SUMITOMO HEAVY INDUSTRIES, LTD.
19114551 SYSTEM AND METHODS FOR TOMOGRAPHIC VAT PHOTOPOLYMERIZATION Non-Final OA Danmarks Tekniske Universitet

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Who Appears Before This Examiner

Top companies before this examiner

Law firms appearing most often

Frequently Asked Questions

What is examiner Baileigh K Darnell's allowance rate?

70.2% of resolved applications examined by Baileigh K Darnell were allowed (393 resolved cases), compared with 58.3% across Art Unit 1742 over the last five years.

Does an interview help with examiner Baileigh K Darnell?

This examiner's interview lift is +25.9 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Baileigh K Darnell take to allow a patent?

Applications allowed by Baileigh K Darnell took 1,025 days on average from filing to allowance.

Which art unit does examiner Baileigh K Darnell work in?

Baileigh K Darnell examines applications in Art Unit 1742 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month