Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8479455 | Flashing assembly | Richard F. Schaefer, Don N. Tamm | 2013-07-09 |
| 8448405 | Roof mount sealing assembly | Richard F. Schaefer, Don N. Tamm | 2013-05-28 |
| D639144 | Four faced interlocking support member | Richard F. Schaefer, Don N. Tamm | 2011-06-07 |
| D639143 | Dual faced interlocking support member | Richard F. Schaefer, Don N. Tamm | 2011-06-07 |
| D636656 | Single jaw interlocking support post | Richard F. Schaefer, Don N. Tamm | 2011-04-26 |
| D617174 | Interlocking support post | Richard F. Schaefer, Don N. Tamm | 2010-06-08 |