Prosecution Insights
Last updated: October 26, 2026

Cathy Kingdon, USPTO Patent Examiner

Listed by the USPTO as KINGDON, CATHY

Tech Center 1600 • Art Units: 1638 1653 1662 1663

This examiner grants 80% of resolved cases

Analysis

Examiner KINGDON, CATHY has a high volume of 1216 resolved cases in Tech Center 1600 and Art Unit 1638. The allowance rate is 80.3 percent. Interviews provide a modest interview lift of 2.6 percent, which indicates that while interviews are generally positive, the baseline allowance rate is already high. This suggests that the vast majority of applications are handled effectively through written prosecution alone.

The median time to allowance is 943 days. Pioneer Hi-bred International Inc., Syngenta AG, and Kashiv Biosciences LLC are the top companies in this examiner's docket. DENTONS US LLP, ARENTFOX SCHIFF LLP, and BIRCH STEWART KOLASCH & BIRCH, LLP are the leading firms. The 1216 resolved cases and 943-day median pendency indicate a highly experienced examiner in the biotechnology and agricultural sectors. Practitioners can use these metrics to set realistic expectations for their clients regarding the duration and success of the patent prosecution process.

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

Performance Statistics

80.3%
Allow Rate
+20.3% vs TC avg
1,245
Total Applications
+2.6%
Interview Lift
943
Avg Prosecution Days
Based on 1216 resolved cases, 2023–2026

Rejection Statute Breakdown

5.9%
§101 Eligibility
20.4%
§102 Novelty
20.0%
§103 Obviousness
39.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18536941 WHEAT VARIETY PMWH80246940 Non-Final OA BASF SE
19169098 SOYBEAN VARIETY Non-Final OA SYNGENTA CROP PROTECTION AG
17981692 VARIETY CORN LINE HID4134 Non-Final OA SYNGENTA CROP PROTECTION AG
19106274 COMPOSITIONS AND METHODS FOR THE PRODUCTION OF 1,2-BETA-OLIGOGLUCANS Non-Final OA Cargill, Incorporated

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Frequently Asked Questions

What is examiner Cathy Kingdon's allowance rate?

80.3% of resolved applications examined by Cathy Kingdon were allowed (1,216 resolved cases), compared with 48.8% across Art Unit 1638 over the last five years.

Does an interview help with examiner Cathy Kingdon?

This examiner's interview lift is +2.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Cathy Kingdon take to allow a patent?

Applications allowed by Cathy Kingdon took 943 days on average from filing to allowance.

Which art unit does examiner Cathy Kingdon work in?

Cathy Kingdon examines applications in Art Unit 1638 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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