Issued Patents All Time
Showing 25 most recent of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8893897 | Secure, quick attachment and release bicycle support systems | Jonathan P. Workman | 2014-11-25 |
| D663654 | Propulsion trailer | Mark E. Wanger | 2012-07-17 |
| 8106278 | Percussion instrument support apparatus | — | 2012-01-31 |
| 8075217 | Telescoping member methods and apparatus | — | 2011-12-13 |
| D648571 | X-shaped music stand | — | 2011-11-15 |
| D646505 | Guitar stand | — | 2011-10-11 |
| D643648 | Keyboard stand | — | 2011-08-23 |
| 7932451 | Musical instrument support methods and apparatus | Jonathan P. Workman, David Roberts, Julie T Petit, Todd Eimen | 2011-04-26 |
| 7928304 | Instrument support apparatus having non-horizontal tiers and vertical axis pivot capability | Steven Grant Fisher | 2011-04-19 |
| D613092 | Drum rack | Kazuhito Nakajima | 2010-04-06 |
| D580262 | Percussion instrument support arm clamp | Kazuhito Nakajima | 2008-11-11 |
| D576870 | Drum rack member clamp | Kazuhito Nakajima | 2008-09-16 |
| D556530 | Clamp for bicycles | Jonathan P. Workman | 2007-12-04 |
| D506219 | Base assembly | — | 2005-06-14 |
| D505617 | Swivel clamp fitting | — | 2005-05-31 |
| 6814332 | Microphone support boom movement control apparatus and method with differential motion isolation capability | — | 2004-11-09 |
| 6789772 | Off-axis reducible support structure | — | 2004-09-14 |
| D493363 | Swivel clamp fitting | — | 2004-07-27 |
| D492587 | Swivel clamp fitting | — | 2004-07-06 |
| 6375135 | High strength engineered collapsible tripod | Jonathan P. Workman, Kenneth W. House, Douglas A. Kempel, Robin Richard Slaton, Tillman Frazier Taylor | 2002-04-23 |
| 6343802 | Method and system for concentrated primary support for a user in support assistive devices | Jonathan P. Workman, Kenneth W. House | 2002-02-05 |
| D450339 | Tripod | — | 2001-11-13 |
| 6283421 | Instrument support system | Robin Richard Slaton, Douglas A. Kempel | 2001-09-04 |
| D435365 | Instrument stand | Douglas A. Kempel, Robin Richard Slaton | 2000-12-26 |
| 6062396 | Integrated vehicle display system | — | 2000-05-16 |