Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6871629 | Refrigeration system with low-fuel shutdown | Jay L. Hanson, Steve Brenneman, Ricardo Spiro DeGrego | 2005-03-29 |
| 6708507 | Temperature control apparatus and method of determining malfunction | Jay L. Hanson | 2004-03-23 |
| 6037864 | Method for continuously determining the oil change interval for an internal combustion engine | Jay L. Hanson | 2000-03-14 |
| 5530647 | Method of dynamically determining oil change intervals for internal combustion engines | Jay L. Hanson, Doyle G. Herrig | 1996-06-25 |
| 5462658 | Fuel filter system | — | 1995-10-31 |
| 5339787 | Method and apparatus for distributing fuel in a diesel engine | Bruce E. Jungquist, Michael E. McBroom, Curtis G. Yaeger, Donald G. Knauff | 1994-08-23 |