Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6245236 | Reciprocating biological filter | — | 2001-06-12 |
| 5947893 | Method of making a porous prothesis with biodegradable coatings | C. Mauli Agrawal | 1999-09-07 |
| 5876446 | Porous prosthesis with biodegradable material impregnated intersticial spaces | C. Mauli Agrawal | 1999-03-02 |
| 5702446 | Bone prosthesis | C. Mauli Agrawal | 1997-12-30 |
| 4976760 | Porous ceramic article for use as a filter for removing particulates from diesel exhaust gases | Richard L. Helferich | 1990-12-11 |
| 4923487 | Cross flow diesel particulate trap | Douglas A. Bogart | 1990-05-08 |
| 4871495 | Process for producing porous ceramic filter for filtering of particulates from diesel exhaust gases | Richard L. Helferich | 1989-10-03 |
| 4846906 | Methods for the manufacture of porous ceramic shapes containing membraneous surfaces | Richard L. Helferich | 1989-07-11 |
| 4812424 | Kiln furniture for the firing of ceramic articles | Richard L. Helferich | 1989-03-14 |