Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6113664 | Flange densification for filter candles | James F. Zievers, Paul Eggerstedt | 2000-09-05 |
| 5766290 | Cross flow filter design | James F. Zievers, Paul Eggerstedt | 1998-06-16 |
| 5500029 | Filter element and method of manufacture | James F. Zievers, Peter Aguilar, Paul Eggerstedt | 1996-03-19 |
| 5256175 | Hot gas filter | James F. Zievers, Paul Eggerstedt | 1993-10-26 |
| 5238478 | Ceramic filter element and method of manufacture | James F. Zievers, Paul Eggerstedt | 1993-08-24 |
| 5223138 | Reinforced ceramic filter candle and method of making same | James F. Zievers | 1993-06-29 |
| 5209844 | Hot gas filter with jet pulse cleaning | James F. Zievers, Peter Aguilar, Paul Eggerstedt | 1993-05-11 |
| 4960448 | High temperature gas filter | — | 1990-10-02 |