Predicate Research Report · generated 2026-08-22 · Print / save as PDF · Save to account
Bill Olson Corp. — Predicate Candidate Screening
4 FDA 510(k) clearances under this manufacturer; the 50 most recent screened below.
| K-number | Device | Applicant | Decided | Review days | Recalls (K-match) |
|---|---|---|---|---|---|
| K973238 | ZEFON ADULT ANESTHESIA BREATHING CIRCUIT WITH FILTER, ZEFON | Bill Olson Corp. | 1998-03-11 | 195 | 0 |
| K935168 | ZEFON PEDIATRIC ANESTHESIA BREATHING CIRCUIT KITS | Bill Olson Corp. | 1994-02-07 | 103 | 0 |
| K911880 | ZEFON ADULT ANESTHESIA BREATHING CIRCUIT | Bill Olson Corp. | 1991-12-20 | 235 | 0 |
| K911651 | ZEFON BATERIAL/VIRAL FILTER | Bill Olson Corp. | 1991-05-30 | 48 | 0 |
Methodology
Recall counts reflect FDA recall records explicitly referencing each K-number; FDA links recalls to K-numbers inconsistently, so 0 means "none found in FDA records," not "never recalled." Data: FDA openFDA, refreshed weekly. Verify decisions of consequence against the primary source. Full candidate set and CSV export: atlasbyauro.com.
Prepared with Atlas
Predicate research, review-time statistics and recall monitoring for 510(k) teams — atlasbyauro.com/fda