Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10920417 | Fire-resistant building joint system | John C. Hulteen, Robert E. Gestner, Richard J. Haffner, Ernst Schmidt | 2021-02-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10920417 | Fire-resistant building joint system | John C. Hulteen, Robert E. Gestner, Richard J. Haffner, Ernst Schmidt | 2021-02-16 |