Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11292299 | Apparatus for delivering air through trailer axle system | Marvin L. Stone | 2022-04-05 |
| 10226971 | Apparatus for delivering air through powered axle assemblies | Marvin L. Stone | 2019-03-12 |
| 9561694 | Failure tolerant tire inflation system | Marvin L. Stone, Kent Dieball | 2017-02-07 |
| 8028732 | Tire inflation system | Calvin Burgess, Michael H. Penwell, Patrick E. Roberts | 2011-10-04 |
| 7975739 | Rotary union assembly for use in air pressure inflation systems for tractor trailer tires | — | 2011-07-12 |
| 7963159 | Inflation system for tires | Calvin Burgess, Michael H. Penwell, Patrick E. Roberts | 2011-06-21 |
| 7896045 | Apparatus for delivering air through powered axle assemblies | John B. Solie, Marvin L. Stone | 2011-03-01 |
| 7418989 | Rotary union assembly for use in air pressure inflation systems for tractor trailer tires | — | 2008-09-02 |
| 7302980 | Rotary union assembly for use in air pressure inflation systems for tractor trailer tires | — | 2007-12-04 |
| 6968882 | Rotary union assembly for use in air pressure inflation systems for tractor trailer tires | — | 2005-11-29 |
| 6585019 | Rotary union assembly for use in air pressure inflation systems for tractor trailer tires | — | 2003-07-01 |
| 6394556 | Press-expansion plug filter assembly for use with air pressure inflation systems for tractor trailer tires | — | 2002-05-28 |
| 6105645 | Rotary union assembly for use in air pressure inflation systems for tractor trailer tires | — | 2000-08-22 |
| 5584949 | Air inflation system for trailer axles | — | 1996-12-17 |