Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8291632 | Projectile weapons | — | 2012-10-23 |
| 5919159 | Medical injection system and method, gas spring thereof and launching device using gas spring | Stephen John Lilley, David R. Theobald, Craig J. Carlson, David I. Rosen, Thomas R. Johnson | 1999-07-06 |
| 5891085 | Nozzle assembly with lost motion connection for medical injector assembly | Stephen John Lilley, David R. Theobald, Craig J. Carlson, David I. Rosen, Thomas R. Johnson | 1999-04-06 |
| 5846233 | Coupling device for medical injection system | Stephen John Lilley, David R. Theobald, Craig J. Carlson, David I. Rosen, Thomas R. Johnson | 1998-12-08 |
| 5599302 | Medical injection system and method, gas spring thereof and launching device using gas spring | Stephen John Lilley, David R. Theobald, Craig J. Carlson, David I. Rosen, Thomas R. Johnson | 1997-02-04 |
| 5425191 | Gun sight mounts | David R. Theobald, Derek J. C. Bernard | 1995-06-20 |
| 5193517 | Gas spring airgun | David R. Theobald | 1993-03-16 |
| 4850329 | Firing mechanisms for air weapons | David R. Theobald, Derek J. C. Bernard | 1989-07-25 |
| 4771758 | Air weapon with air compression system having grooves for air transfer | David R. Theobald | 1988-09-20 |
| 4709686 | Air weapon with gas-tight expansion chamber | David R. Theobald | 1987-12-01 |