Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11819248 | Pivotal bone anchor assembly with snap-in-place pre-lock friction fit bushing | Thomas Purcell, Tamas T. Frech | 2023-11-21 |
| 11389207 | Bottom loaded bone screw assembly with direct pivotal engagement between screw head and body member | Thomas Purcell, Tamas T. Frech | 2022-07-19 |
| 11039861 | Pivotal bone anchor assembly with snap-in-place bushing above a shank head hemisphere | Thomas Purcell, Tamas T. Frech | 2021-06-22 |
| 10751093 | Pivotal bone anchor assembly with snap-in-place bushing having resilient alignment tabs and shank head engaging slots | Thomas Purcell, Tamas T. Frech | 2020-08-25 |
| 10617448 | Variable angle spinal screw assembly with press fitment bushing | Thomas Purcell, Tamas T. Frech | 2020-04-14 |
| 10595905 | Spinal screw assembly with snap-in-place bushing above a shank head hemisphere | Thomas Purcell, Tamas T. Frech | 2020-03-24 |
| 10595906 | Spinal screw assembly with pressure bushing for pre-lock friction fit | Thomas Purcell, Tamas T. Frech | 2020-03-24 |
| 10588667 | Top and bottom loadable bone screw assembly with direct pivotal engagement between shank head and receiver | Thomas Purcell, Tamas T. Frech | 2020-03-17 |
| 10537365 | Pivotal bone anchor assembly with biased bushing for pre-lock friction fit | Thomas Purcell, Tamas T. Frech | 2020-01-21 |
| 10537366 | Pivotal bone anchor assembly with snap-in-place bushing for pre-lock friction fit | Thomas Purcell, Tamas T. Frech | 2020-01-21 |
| 10524840 | Variable angle bone anchor assembly having biased bushing press fitment | Thomas Purcell, Tamas T. Frech | 2020-01-07 |
| 10349983 | Pivotal bone anchor assembly with biased bushing for pre-lock friction fit | Thomas Purcell, Tamas T. Frech | 2019-07-16 |
| 8636775 | Variable angle spinal screw assembly | Thomas Purcell, Tamas T. Frech | 2014-01-28 |
| 8298265 | Variable angle spinal screw assembly | Thomas Purcell, Tamas T. Frech | 2012-10-30 |
| 7377923 | Variable angle spinal screw assembly | Thomas Purcell, Tamas T. Frech | 2008-05-27 |