Prosecution Insights
Last updated: October 27, 2026

Karen M Redden, USPTO Patent Examiner

Listed by the USPTO as REDDEN, KAREN M

Tech Center 1600 • Art Units: 1661 1662

This examiner grants 88% of resolved cases

Performance Statistics

88.4%
Allow Rate
+28.4% vs TC avg
676
Total Applications
-21.5%
Interview Lift
538
Avg Prosecution Days
Based on 664 resolved cases, 2023–2026

Rejection Statute Breakdown

2.5%
§101 Eligibility
20.1%
§102 Novelty
15.6%
§103 Obviousness
55.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
16865684 NEXT GENERATION OF LIGHT-EMITTING PLANT LONGER DURATION AND BRIGHTER Final Rejection MASSACHUSETTS INSTITUTE OF TECHNOLOGY

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 Karen M Redden's allowance rate?

88.4% of resolved applications examined by Karen M Redden were allowed (664 resolved cases), compared with 91.6% across Art Unit 1661 over the last five years.

Does an interview help with examiner Karen M Redden?

This examiner's interview lift is -21.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Karen M Redden take to allow a patent?

Applications allowed by Karen M Redden took 538 days on average from filing to allowance.

Which art unit does examiner Karen M Redden work in?

Karen M Redden examines applications in Art Unit 1661 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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