FDA applicant

Keystone Diagnostics, Inc.

Washington, DC2 decisions1987–19880 recalls

FDA records 2 decisions for Keystone Diagnostics, Inc. (Washington, DC) from 1987 to 1988: 2 510(k) clearances. All are in product code LDJ (Enzyme Immunoassay, Cannabinoids). No recall is linked to its devices.

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) refreshed weekly, last Nov 3, 2026

FIG. A — Illustration, clinical toxicology panel, where it files most

How often FDA has decided Keystone Diagnostics, Inc.’s devices, and how often a recall has named them.

FDA decisions per year

No FDA decision for Keystone Diagnostics, Inc. since 2007.

Recalls per year

No recall linked to its devices since 2007.

FIG. 1 — Keystone Diagnostics, Inc. by year, 2007–2026Sources: FDA decision databases, recall and enforcement reports · Data through Oct 25, 2026

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Other applicant names beginning “Keystone”

FDA records each applicant name separately; these may or may not be the same firm.

Keystone Dental, Inc. 8 Keystone X-Ray, Inc. 4 Keystone Industries 3 Keystone Veterinary Supplies, Inc. 3 Keystone Medical 2 Keystone Heart, Ltd. 1

Keystone Diagnostics, Inc.

Which product codes does it file in?

What has FDA decided for it lately?

Other applicant names beginning “Keystone”