Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878947 | Method for manufacture of porous refractory articles | — | 1989-11-07 |
| 4871495 | Process for producing porous ceramic filter for filtering of particulates from diesel exhaust gases | Robert C. Schenck | 1989-10-03 |
| 4846906 | Methods for the manufacture of porous ceramic shapes containing membraneous surfaces | Robert C. Schenck | 1989-07-11 |
| 4814300 | Porous ceramic shapes, compositions for the preparation thereof, and method for producing same | — | 1989-03-21 |
| 4812424 | Kiln furniture for the firing of ceramic articles | Robert C. Schenck | 1989-03-14 |