Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11920405 | Shaker doors with solid core and methods for making thereof | John Robinson, Steven B. Swartzmiller, Steven Gutkowski, Robert C. Allen, Michael MacDonald | 2024-03-05 |
| 11261652 | Shaker doors with solid core and methods for making thereof | John Robinson, Steven B. Swartzmiller, Steven Gutkowski, Robert C. Allen, Michael MacDonald | 2022-03-01 |
| 10753140 | Shaker doors with solid core and methods for making thereof | John Robinson, Steven B. Swartzmiller, Steven Gutkowski, Robert C. Allen, Michael MacDonald | 2020-08-25 |
| 10392857 | Shaker doors with solid core and methods for making thereof | John Robinson, Steven B. Swartzmiller, Steven Gutkowski, Robert C. Allen, Michael MacDonald | 2019-08-27 |