Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5472537 | End capped fibrous filter making | Colin F. Harwood | 1995-12-05 |
| 5290446 | Helical wrapped filter element | Peter J. Degen, Colin F. Harwood, Clemens C. von Reitzenstein, Stephen A. Geibel | 1994-03-01 |