Prosecution Insights
Last updated: October 26, 2026

Alexander Keith Showalter, USPTO Patent Examiner

Listed by the USPTO as SHOWALTER, ALEXANDER KEITH

Tech Center 1600 • Art Units: 1629

This examiner grants 55% of resolved cases

Analysis

SHOWALTER, ALEXANDER KEITH works in tech center 1600 and art unit 1629. The profile shows 92 resolved cases, an allowance rate of 55.4%, and a median of 1313 days to allowance. The 27.3% interview lift is meaningful in relation to the allowance rate, while the 1313-day median points to a prosecution process that can extend over a substantial period.

The companies appearing most often are BASF SE, The Chinese University of Hong Kong, and Columbia University. The associated firms are HOXIE & ASSOCIATES LLC, MARSHALL, GERSTEIN & BORUN LLP, and BANNER & WITCOFF, LTD. The resolved-case total is modest, so practitioners should treat the figures as directional. The company and firm list remains useful for identifying relevant experience in art unit 1629.

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

Performance Statistics

55.4%
Allow Rate
-4.6% vs TC avg
128
Total Applications
+27.3%
Interview Lift
1313
Avg Prosecution Days
Based on 92 resolved cases, 2023–2026

Rejection Statute Breakdown

3.5%
§101 Eligibility
14.8%
§102 Novelty
34.9%
§103 Obviousness
31.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18686126 HERBICIDAL MALONAMIDES CONTAINING A CONDENSED RING SYSTEM Final Rejection BASF SE
18726342 COMBINATION THERAPIES INCLUDING PARP1 INHIBITORS Non-Final OA Cornell University

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Who Appears Before This Examiner

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Frequently Asked Questions

What is examiner Alexander Keith Showalter's allowance rate?

55.4% of resolved applications examined by Alexander Keith Showalter were allowed (92 resolved cases), compared with 42.3% across Art Unit 1629 over the last five years.

Does an interview help with examiner Alexander Keith Showalter?

This examiner's interview lift is +27.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Alexander Keith Showalter take to allow a patent?

Applications allowed by Alexander Keith Showalter took 1,313 days on average from filing to allowance.

Which art unit does examiner Alexander Keith Showalter work in?

Alexander Keith Showalter examines applications in Art Unit 1629 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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