Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4943185 | Combined drainage and waterproofing panel system for subterranean walls | Dean L. Bradfield, Raymond A. Foltz, H. James Heidt | 1990-07-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4943185 | Combined drainage and waterproofing panel system for subterranean walls | Dean L. Bradfield, Raymond A. Foltz, H. James Heidt | 1990-07-24 |