Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5894992 | Hydraulically actuated fuel injector with injection rate shaping pressure intensifier | Amarjit S. Ghuman, Benjamin M. Yen, Lester L. Peters, Edward D. Smith | 1999-04-20 |
| 5619969 | Fuel injection rate shaping control system | Benjamin M. Yen, Lester L. Peters, Julius P. Perr, Russ P. Durrett, Donald N. Case +4 more | 1997-04-15 |
| 5518030 | Three-way flow valve with variable drain orifice area | Benjamin M. Yen, Lester L. Peters, Julius P. Perr | 1996-05-21 |