Issued Patents All Time
Showing 25 most recent of 62 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9730849 | Patient lift and transfer device | Lawrence R. Gravell | 2017-08-15 |
| 9668929 | Patient transfer device with differential belt-table speed control | Ralph M. Smucker | 2017-06-06 |
| 9410403 | Underwater noise reduction system using open-ended resonator assembly and deployment apparatus | Mark S. Wochner, Lawrence R. Gravell, Steven De Leon | 2016-08-09 |
| 9289341 | Lift chair | Roy Matthew Patterson | 2016-03-22 |
| 9186287 | Table and slide assemblies for patient transfer device | Lawrence R. Gravell | 2015-11-17 |
| 9107788 | Cam mechanism to raise steering wheel of patient transfer device | Lawrence R. Gravell | 2015-08-18 |
| 9084707 | Lift chair | Roy Matthew Patterson | 2015-07-21 |
| 8869322 | Table and slide assemblies for patient transfer device | Lawrence R. Gravell | 2014-10-28 |
| 8789219 | Lift chair | Roy Matthew Patterson | 2014-07-29 |
| 8671974 | Flow-actuated actuator and method | Gary B. Lake, Yang Xu, Terry R. Bussear | 2014-03-18 |
| 8468623 | Lift chair | Roy Matthew Patterson | 2013-06-25 |
| 8448272 | Table and slide assemblies for patient transfer device | Lawrence R. Gravell | 2013-05-28 |
| 8434174 | Steering system for patient transfer device | Lawrence R. Gravell | 2013-05-07 |
| 8359683 | Patient lift and transfer device | Ralph M. Smucker | 2013-01-29 |
| 8356368 | Patient lift and transfer device | — | 2013-01-22 |
| 8307478 | Disposable comfort sheet | Bryan D. Blackford | 2012-11-13 |
| 8225871 | Bidirectional sealing mechanically shifted ball valve for downhole use | Clifford H. Beall, James T. Sloan | 2012-07-24 |
| 8214944 | Patient lift and transfer device | — | 2012-07-10 |
| 8214943 | Steering system for patient transfer device | Lawrence R. Gravell | 2012-07-10 |
| 8112833 | Table assembly for patient transfer device | Lawrence R. Gravell | 2012-02-14 |
| 8096004 | Patient lift and transfer device | — | 2012-01-17 |
| 7975329 | Patient lift and transfer device | — | 2011-07-12 |
| 7967074 | Electric wireline insert safety valve | Gary B. Lake, Thad D. Andrews | 2011-06-28 |
| 7861336 | Table assembly for patient transfer device | Lawrence R. Gravell | 2011-01-04 |
| 7856682 | Patient lift and transfer device | Ralph M. Smucker | 2010-12-28 |