Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11352183 | Pressure relief valve with wetting fluid reservoirs | Robert C. Larsen | 2022-06-07 |
| 9821528 | Method for lubricating pressure relief valves | Steve Kaganovich, Thomas J. Roberts | 2017-11-21 |
| 9187229 | Oil-less pressure relief valves | Robert C. Larsen, Keith P. Hoffman, Douglas A. Wielunski | 2015-11-17 |
| 8820381 | Apparatus and method for tin-tie application | Tom Scott Roberts, Steve Kaganovich, Clay Ladd, Arthur A. Sagy | 2014-09-02 |
| 8783292 | Oil-less pressure relief valves | Keith P. Hoffman, Robert C. Larsen, Douglas A. Wielunski | 2014-07-22 |
| 8636034 | Oil-less and wetted pressure relief valves having an integrated filter | Keith P. Hoffman, Robert C. Larsen, John Ozcomert, Douglas A. Wielunski | 2014-01-28 |
| 8522926 | Apparatus and method for lubricating pressure relief valves | Steve Kaganovich, Thomas J. Roberts | 2013-09-03 |
| 8082644 | Apparatus for the application of pressure relief valves | Steve Kaganovich, Thomas J. Roberts | 2011-12-27 |
| 7637283 | Pressure relief valve with stiff support | — | 2009-12-29 |
| 7611557 | Reversed pressure relief valve | — | 2009-11-03 |
| 7472524 | Method for the application of pressure relief valves | Vladimir Prive, Tom Scott Roberts, Steve Kaganovich | 2009-01-06 |
| 7328543 | Apparatus and method for the application of pressure relief valves | Vladimir Prive, Tom Scott Roberts, Steve Kaganovich | 2008-02-12 |
| 5561574 | Method for manufacturing lifter for a disc cartridge and feed stock therefor | Roger K. Engel | 1996-10-01 |
| 5511883 | Hang tab for containers | John G. Clark | 1996-04-30 |
| 4620247 | Diskette spring and diskette | Walter A. Papciak, Roger K. Engel, Adam Wieczorek | 1986-10-28 |