Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4943544 | High strength, abrasion resistant refractory castable | Charles N. McGarry, Thomas M. Wehrenberg | 1990-07-24 |
| 4841696 | Size-adjustable window insert assembly | — | 1989-06-27 |
| 4702051 | Size-adjustable window insert assembly | — | 1987-10-27 |
| 4520602 | Multi-pane sealed window and method for forming same | — | 1985-06-04 |
| 4453855 | Corner construction for spacer used in multi-pane windows | David J. Richter | 1984-06-12 |