Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9969576 | Inflatable weather barriers for loading docks | Collin Thole, Frank Heim, Timothy J. Schmidt | 2018-05-15 |
| 9592972 | Sealing members for weather barriers | Charles Digmann, Frank Heim, Gary Borgerding, Ryan Withrow | 2017-03-14 |
| 8991467 | Flexible room dividers | David J. Hoffmann, Matt Fleckenstein, Gregory J. Thill | 2015-03-31 |
| 8839842 | Insulated washdown flexible walls and curtains | David J. Hoffmann | 2014-09-23 |
| 8353136 | Low profile support panel for a dock seal | David J. Hoffmann | 2013-01-15 |
| 7877831 | Weather shield for underneath a dock leveler | Charles Digmann | 2011-02-01 |
| 7584517 | Weather shield for underneath a dock leveler | Charles Digmann | 2009-09-08 |
| 7334281 | Weather shield for underneath a dock leveler | Charles Digmann | 2008-02-26 |
| 7287353 | Heat shielded dock pad | Gregory J. Thill | 2007-10-30 |
| 7246467 | Heat shielded dock pad | Jason D. Miller, David J. Hoffmann | 2007-07-24 |
| 7146673 | Weather shield for underneath a dock leveler | Charles Digmann | 2006-12-12 |
| 6550191 | Roller sealing apparatus for forming a weather seal between a vehicle and a loading dock or the like | David J. Hoffmann, Paul D. Rowlett | 2003-04-22 |
| 6502268 | Weather shield for below a dock leveler | Charles Digmann, Gregory J. Thill | 2003-01-07 |
| 6272799 | Loading dock seal with adjustable mounting bracket | Jason D. Miller | 2001-08-14 |
| 6233885 | Roller sealing apparatus for forming a weather seal between a vehicle and a loading dock or the like | David J. Hoffmann, Paul D. Rowlett | 2001-05-22 |
| 6205721 | Sealing apparatus for forming a weather seal between a vehicle and a loading dock or the like | Thomas J. Boffeli, David J. Hoffmann | 2001-03-27 |
| 5154827 | Laminated microporous fluorocarbon membrane and fluorocarbon filter cartridge using same | Dwight J. Thomas | 1992-10-13 |
| 4678577 | Seamless vessel for self contained filter assembly | Dwight J. Thomas | 1987-07-07 |