Prosecution Insights
Last updated: October 26, 2026

Stacey Nee Macfarlane, USPTO Patent Examiner

Listed by the USPTO as MACFARLANE, STACEY NEE

Tech Center 1600 • Art Units: 1645 1649 1675 1678

This examiner grants 54% of resolved cases

Performance Statistics

53.7%
Allow Rate
-6.3% vs TC avg
883
Total Applications
+39.5%
Interview Lift
1223
Avg Prosecution Days
Based on 842 resolved cases, 2023–2026

Rejection Statute Breakdown

9.3%
§101 Eligibility
16.5%
§102 Novelty
25.4%
§103 Obviousness
36.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18474419 Use of Biomarkers in the Treatment of Fibrotic Conditions with a PDE4B-inhibitor Non-Final OA Boehringer Ingelheim International GmbH

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Frequently Asked Questions

What is examiner Stacey Nee Macfarlane's allowance rate?

53.7% of resolved applications examined by Stacey Nee Macfarlane were allowed (842 resolved cases), compared with 49.5% across Art Unit 1645 over the last five years.

Does an interview help with examiner Stacey Nee Macfarlane?

This examiner's interview lift is +39.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Stacey Nee Macfarlane take to allow a patent?

Applications allowed by Stacey Nee Macfarlane took 1,223 days on average from filing to allowance.

Which art unit does examiner Stacey Nee Macfarlane work in?

Stacey Nee Macfarlane examines applications in Art Unit 1645 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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