Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10271639 | Apparatus for providing an assistive work surface lifting force for a height-adjustable work surface | Gary Paprocki | 2019-04-30 |
| 8555548 | Modular window operating system | — | 2013-10-15 |
| 4898409 | Tandem rod for casement windows | — | 1990-02-06 |