Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5544864 | Collapsible portable child's play-pen | Andrzej Krysztofowicz | 1996-08-13 |
| D362143 | Adjustable base for a high chair | Andrzej Krysztofowicz | 1995-09-12 |
| D350648 | Collapsible portable child's play-pen | Andrzej Krysztofowicz | 1994-09-20 |