FDA applicant

Grass Instrument Co.

Mchenry, IL6 decisions1977–20020 recalls

FDA records 6 decisions for Grass Instrument Co. (Mchenry, IL) from 1977 to 2002: 6 510(k) clearances. Most are in product codes OLV (Standard Polysomnograph With…) and GWJ (Stimulator, Auditory, Evoked Response). Its devices cite 4 predicates, 0 of them its own earlier devices. 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, neurology panel, where it files most

How often FDA has decided Grass Instrument Co.’s devices, and how often a recall has named them.

FDA decisions per year

No FDA decision for Grass Instrument Co. since 2007.

Recalls per year

No recall linked to its devices since 2007.

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

Planning a device like Grass Instrument Co.’s? A 510(k) Report ranks candidate predicates for your device by lineage, citations and recall history, with the review-time outlook.

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Other applicant names beginning “Grass”

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

Grass-Telefactor Product Group 12 Grass-Telefactor Divison 1 Grass Technologies, an Astro-Med, Inc. Product Gro 1

Grass Instrument Co.

Which product codes does it file in?

Whose devices does it build on?

Who builds on its devices?

Which of its devices are cited most?

What has FDA decided for it lately?

Other applicant names beginning “Grass”