Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7740148 | Container bottom | Mahesh Rajagopalan, Charles E. Brossia, Carl Szwargulski, Michael Jansma | 2010-06-22 |
| 7398894 | Container bottom, method of manufacture, and method of testing | Mahesh Rajagopalan, Charles E. Brossia, Carl Szwargulski, Michael Jansma | 2008-07-15 |
| 6505499 | Puncture resistance in ultra-thin aluminum pressure vessels | Matthew R. Hackworth, John M. Henshaw, Randy Houchins, Paul Siefken, Dwight Davis | 2003-01-14 |
| 6263719 | Container and method of manufacture | Carl Szwargulski, Kevin A. Leonard, Thomas Brinkmann | 2001-07-24 |
| 6182852 | Container and method of manufacture | Carl Szwargulski, Kevin A. Leonard, Thomas Brinkmann | 2001-02-06 |
| D398528 | Container bottom | David J. Wiemann | 1998-09-22 |
| D391482 | Container bottom | David J. Wiemann | 1998-03-03 |