Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11612841 | Sensing system for detecting machine fluid degradation | Philip Carl Spengler, Jeffrey R. Ries | 2023-03-28 |
| 11173438 | Filter having tracer material | Javier A. Rodriguez, Philip Carl Spengler, Darrell Lee Morehouse, III | 2021-11-16 |
| 11110378 | Sensing system for detecting machine fluid degradation | Philip Carl Spengler, Jeffrey R. Ries | 2021-09-07 |
| 10598651 | Sensing system for detecting machine fluid degradation | Philip Carl Spengler, Jeffrey R. Ries | 2020-03-24 |
| 10315137 | Sensing system for detecting machine fluid degradation | Philip Carl Spengler, Jeffrey R. Ries | 2019-06-11 |
| 8333065 | System for detecting sulfuric acid | James R. Weber, Thomas J. Crowell | 2012-12-18 |
| 7805926 | Exhaust treatment system having an acidic debris filter | Dennis L. Endicott, James R. Weber, Erin Elizabeth Atterberry | 2010-10-05 |
| 7383806 | Engine with carbon deposit resistant component | Xiangyang Jiang, Jorge R. Agama, Kurtis C. Kelley, Mark W. Jarrett | 2008-06-10 |
| 7264643 | Electrical connection for porous material | Matthew Earnest Williams, Matthew Thomas Kiser, Michael Pollard, Jo Costura, Cornelius Opris +1 more | 2007-09-04 |