Issued Patents All Time
Showing 25 most recent of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D338537 | Window component extrusion | Dennis Westphal | 1993-08-17 |
| D322486 | Window component extrusion | Dennis Westphal | 1991-12-17 |
| D321403 | Window sash takeout cover | Dennis Westphal | 1991-11-05 |
| D321126 | Roller housing for a gliding window sash | Dennis Westphal | 1991-10-29 |
| D319576 | Pivot bar component of a tiltable window sash | Dennis Westphal | 1991-09-03 |
| D317857 | Sliding bolt component of a tiltable window sash | Dennis Westphal | 1991-07-02 |
| D316453 | Window component extrusion | Dennis Westphal | 1991-04-23 |
| D316032 | Glide pad for sliding windows, doors and the like | Dennis Westphal | 1991-04-09 |
| D315795 | Corner insert for mitred extruded window frames | Dennis Westphal | 1991-03-26 |
| D315665 | Combined faceplate and latch body for a window latch assembly | Dennis Westphal | 1991-03-26 |
| D315604 | Window component extrusion | Dennis Westphal | 1991-03-19 |
| D315414 | Window component extrusion | Dennis Westphal | 1991-03-12 |
| D313656 | Window component extrusion | Dennis Westphal | 1991-01-08 |
| D313655 | Window component extrusion | Dennis Westphal | 1991-01-08 |
| D313162 | Latch body for a pivoting window sash | Dennis Westphal | 1990-12-25 |
| D313161 | Latch handle for a pivoting window sash | Dennis Westphal | 1990-12-25 |
| D313160 | Plug element for a window latch assembly | Dennis Westphal | 1990-12-25 |
| D312882 | Window component extrusion | Dennis Westphal | 1990-12-11 |
| D312315 | Window component extrusion | Dennis Westphal | 1990-11-20 |
| D312133 | Window component extrusion | Dennis Westphal | 1990-11-13 |
| D312134 | Window component extrusion | Dennis Westphal | 1990-11-13 |
| D311960 | Window component extrusion | Dennis Westphal | 1990-11-06 |
| D311961 | Window component extrusion | Dennis Westphal | 1990-11-06 |
| D311586 | Window component extrusion | Dennis Westphal | 1990-10-23 |
| D311584 | Window component extrusion | Dennis Westphal | 1990-10-23 |