Issued Patents All Time
Showing 25 most recent of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12295895 | Seat positioning system for a wheelchair | Stephen J. Antonishak | 2025-05-13 |
| 12240552 | Mobility vehicle | Anthony LETUKAS, Robert William Davies, Nicholas E. KUZMA, Stephen J. Antonishak | 2025-03-04 |
| 12145403 | Flutter resistant caster | — | 2024-11-19 |
| 12121481 | Anti-tip motorized vehicle | Stephen J. Antonishak | 2024-10-22 |
| 11998495 | Elevated height wheelchair | Stephen J. Antonishak | 2024-06-04 |
| 11865055 | Seat positioning system for a wheelchair | Stephen J. Antonishak | 2024-01-09 |
| 11780497 | Mobility vehicle | Robert William Davies, Nicholas E. KUZMA, Stephen J. Antonishak, Anthony LETUKAS | 2023-10-10 |
| 11707946 | Flutter resistant caster | — | 2023-07-25 |
| 11571345 | Elevated height wheelchair | Stephen J. Antonishak | 2023-02-07 |
| 11358633 | Mobility vehicle | Robert William Davies, Nicholas E. KUZMA, Stephen J. Antonishak, Anthony LETUKAS | 2022-06-14 |
| 11191685 | Adjustable height wheelchair | Stephen J. Antonishak | 2021-12-07 |
| 11173081 | Seat positioning system for a wheelchair | Stephen J. Antonishak | 2021-11-16 |
| 11141330 | Elevated height wheelchair | Stephen J. Antonishak | 2021-10-12 |
| 10828212 | Elevated height wheelchair | Stephen J. Antonishak | 2020-11-10 |
| 10687997 | Elevated height wheelchair | Stephen J. Antonishak | 2020-06-23 |
| 10588797 | Elevated height wheelchair | Stephen J. Antonishak | 2020-03-17 |
| 10561548 | Elevated height wheelchair | Stephen J. Antonishak | 2020-02-18 |
| 10130532 | Elevated height wheelchair | Stephen J. Antonishak | 2018-11-20 |
| 10125879 | Pool filter systems including pool fittings | Sean Walsh | 2018-11-13 |
| 9809988 | Angled pool jet fitting | Stephen J. Antonishak, Sean Walsh | 2017-11-07 |
| 9808383 | Elevated height wheelchair | Stephen J. Antonishak | 2017-11-07 |
| D801233 | Elevated wheelchair | Stephen J. Antonishak, Christopher Johnston, VII | 2017-10-31 |
| 9566200 | Elevated height wheelchair | Stephen J. Antonishak | 2017-02-14 |
| 9554955 | Dual-track tilt mechanism | Corey Blauch | 2017-01-31 |
| 9526664 | Anti-tip system for a power wheelchair | Ronald Levi, Christopher Grymko | 2016-12-27 |