FDA applicant

Grass-Telefactor Product Group

W. Conshohocken, PA12 decisions1986–19990 recalls

FDA records 12 decisions for Grass-Telefactor Product Group (W. Conshohocken, PA) from 1986 to 1999: 12 510(k) clearances. Most are in product codes OLV (Standard Polysomnograph With…) and GWQ (Full-Montage Standard Electroencephalograph). Its devices cite 4 predicates, 4 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-Telefactor Product Group’s devices, and how often a recall has named them.

FDA decisions per year

No FDA decision for Grass-Telefactor Product Group since 2007.

Recalls per year

No recall linked to its devices since 2007.

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

Planning a device like Grass-Telefactor Product Group’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-Telefactor”

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

Grass Instrument Co. 6 Grass-Telefactor Divison 1 Grass Technologies, an Astro-Med, Inc. Product Gro 1

Grass-Telefactor Product Group

Which product codes does it file in?

Who builds on its devices?

Which of its devices are cited most?

What has FDA decided for it lately?

Other applicant names beginning “Grass-Telefactor”