Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6689449 | Roof decking membrane welding system and method | S. Riaz Hasan, Lawrence R. Reinebach | 2004-02-10 |
| 5673816 | Roofing washer magazine for barbed roofing washers | Paul M. Larson, Sigismund G. Paul | 1997-10-07 |
| 4856951 | Fastening assembly for roofs of soft materials | Richard J. Ernst, Francis C. Peterson | 1989-08-15 |
| 4642012 | Fastening assembly for roofs of soft material | Richard J. Ernst, Francis C. Peterson | 1987-02-10 |
| 4581871 | Fastener and nosepiece for installing lath | Elbert E. Williams, Jr., Francis C. Peterson, Richard J. Ernst | 1986-04-15 |
| 4460300 | Fastener with head cap having a concealed edge | John E. Bettini | 1984-07-17 |