Issued Patents 2020
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10844651 | Compression gasket for sealing a window in a window frame | Norman Koster | 2020-11-24 |
| 10731402 | Jacking screw for adjusting a window frame | Norman Koster | 2020-08-04 |
| 10711514 | Male and female gasket coupling for a window frame | Norman Koster | 2020-07-14 |
| 10689899 | Gasket railing system for a window frame | Norman Koster | 2020-06-23 |
| 10590696 | Sill track seal for a window frame | Norman Koster | 2020-03-17 |