| 12226733 |
Systems and methods for concentrating gas |
Matthew E. Monaghan, Pankaj Madhukar Patil |
2025-02-18 |
| 12172121 |
System and method for concentrating gas |
Alex P. Valentine, Matthew E. Monaghan |
2024-12-24 |
| 11213441 |
Suspension for wheeled vehicles |
Gerold Goertzen, Robert L. Cuson |
2022-01-04 |
| 10512572 |
Suspension for wheeled vehicles |
Gerold Goertzen, Robert L. Cuson |
2019-12-24 |
| 9987177 |
Obstacle traversing wheelchair |
Gerold Goertzen |
2018-06-05 |
| 9925100 |
Suspension for wheeled vehicles |
Gerold Goertzen, Robert L. Cuson |
2018-03-27 |
| 9624918 |
Pumping device |
Gerold Goertzen |
2017-04-18 |
| 9364377 |
Suspension for wheeled vehicles |
Gerold Goertzen, Robert L. Cuson |
2016-06-14 |
| 9149398 |
Obstacle traversing wheelchair |
Gerold Goertzen |
2015-10-06 |
| 9061238 |
Gas concentrator |
Samuel J. Shelnutt |
2015-06-23 |
| 8833774 |
Suspension for wheeled vehicles |
Gerold Goertzen, Robert L. Cuson |
2014-09-16 |
| 8636089 |
Obstacle traversing wheelchair |
Gerold Goertzen |
2014-01-28 |
| 8534679 |
Suspension for wheeled vehicles |
Gerold Goertzen, Robert L. Cuson |
2013-09-17 |
| 8172016 |
Obstacle traversing wheelchair |
Gerold Goertzen |
2012-05-08 |
| 8062003 |
System and method for providing oxygen |
Gerold Goertzen |
2011-11-22 |
| 7597163 |
Obstacle traversing wheelchair |
Gerold Goertzen |
2009-10-06 |
| 7419182 |
Mobility aid |
Gerold Goertzen, Bradley Kushner |
2008-09-02 |
| 7293801 |
Self-stabilizing suspension for wheeled vehicles |
John E. Bertrand, Gerald Goertzen |
2007-11-13 |
| 7219755 |
Obstacle traversing wheelchair |
Gerold Goertzen |
2007-05-22 |
| 7083195 |
Suspension with releasable locking system |
Gerald Goertzen |
2006-08-01 |
| 6935448 |
Obstacle traversing wheelchair |
Gerold Goertzen |
2005-08-30 |
| 6923280 |
Obstacle traversing wheelchair |
Gerold Goertzen |
2005-08-02 |
| 6851711 |
Vehicle having an anti-dive/lockout mechanism |
Gerald Goertzen |
2005-02-08 |
| 6554086 |
Obstacle traversing wheelchair |
Gerold Goertzen |
2003-04-29 |