Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D603102 | Protective fielders face guard for softball and baseball | Matthew Evan Polstein, Jason Polstein, Carole Polstein, Lauren Polstein | 2009-10-27 |
| D602647 | Protective helmet mask | Jason Polstein, Matthew Polstein, Lauren Polstein, Carole Polstein | 2009-10-20 |
| D517250 | Protective helmet mask | — | 2006-03-14 |