Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6003303 | Methods for reducing harmful emissions from a diesel engine | Jeremy D. Peter-Hoblyn, James M. Valentine, Barry N. Sprague | 1999-12-21 |
| 5749928 | Method for reducing emissions from or increasing the utilizable energy of fuel for powering internal combustion engines | Barry N. Sprague, Danny T. Kelso, Wayne E. Bowers | 1998-05-12 |
| 5645756 | Hardness suppression in urea solutions | Leonard Dubin, Barry N. Sprague, Thure von Harpe | 1997-07-08 |
| 5441713 | Hardness suppression in urea solutions | Leonard Dubin, Barry N. Sprague, Thure von Harpe | 1995-08-15 |
| 5266083 | Method for reducing pollution emissions from a diesel engine | Jeremy D. Peter-Hoblyn, James M. Valentine, Barry N. Sprague | 1993-11-30 |
| 5215652 | Method for regenerating, replacing or treating the catalyst in a hydroprocessing reactor | Barry N. Sprague, Danny T. Kelso, Wayne E. Bowers | 1993-06-01 |
| 5047219 | Hybrid process for nitrogen oxides reduction | Barry N. Sprague | 1991-09-10 |
| 5034020 | Method for catalyzing fuel for powering internal combustion engines | Barry N. Sprague | 1991-07-23 |