Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5028570 | Silicon nitride bonded magnesia refractory and method | Howard M. Winkelbauer | 1991-07-02 |
| 4627945 | Method of manufacturing an injection molded refractory shape and composition thereof | Howard M. Winkelbauer, Frank Walther, Donald F. Stock | 1986-12-09 |
| 4600607 | Bonding a sialon coating to a substrate | Eugene T. Rushe, Howard M. Winkelbauer | 1986-07-15 |
| 4557884 | Refractory | Daniel R. Petrak, Howard M. Winkelbauer, Thomas R. Kleeb | 1985-12-10 |
| 4533646 | Nitride bonded oxide refractories | Howard M. Winkelbauer | 1985-08-06 |
| 4528244 | Fused silica shapes | Howard M. Winkelbauer | 1985-07-09 |
| 4500644 | Preparation and composition of sialon grain and powder | Howard M. Winkelbauer, Kenneth W. Hill | 1985-02-19 |
| 4460528 | Refractory | Daniel R. Petrak, Howard M. Winkelbauer, Thomas R. Kleeb | 1984-07-17 |