Perr; Julius P.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Perr; Julius P..The latest application filed is for "dual mode egr valve".
- Perr; Julius P. - Columbus IN
| Patent | Date |
|---|---|
| Dual mode EGR valve Grant 6,964,270 - Janssen , et al. November 15, 2 | 2005-11-15 |
| Dual mode EGR valve App 20050028797 - Janssen, John M. ; et al. | 2005-02-10 |
| Variable spray hole fuel injector with dual actuators Grant 6,557,779 - Perr , et al. May 6, 2 | 2003-05-06 |
| Variable spray hole fuel injector with dual actuators App 20020125339 - Perr, Julius P. ; et al. | 2002-09-12 |
| Compact high performance fuel system with accumulator Grant 5,983,863 - Cavanagh , et al. November 16, 1 | 1999-11-16 |
| Fuel injector with pressure balanced needle valve Grant 5,979,803 - Peters , et al. November 9, 1 | 1999-11-09 |
| Two stage fuel injector nozzle assembly Grant 5,899,389 - Pataki , et al. May 4, 1 | 1999-05-04 |
| Fuel injection rate shaping control system Grant 5,619,969 - Liu , et al. April 15, 1 | 1997-04-15 |
| Open nozzle fuel injector having drive train wear compensation Grant 5,611,317 - Peters , et al. March 18, 1 | 1997-03-18 |
| High pressure fuel injector including a trapped volume spill port Grant 5,445,323 - Perr , et al. August 29, 1 | 1995-08-29 |
| Individual timing and injection fuel metering system Grant 5,441,027 - Buchanon , et al. August 15, 1 | 1995-08-15 |
| Force balanced electronically controlled fuel injector Grant 5,419,492 - Gant , et al. May 30, 1 | 1995-05-30 |
| Variable displacement high pressure pump for fuel injection systems Grant 5,404,855 - Yen , et al. April 11, 1 | 1995-04-11 |
| Compressed natural gas injection system for gaseous fueled engines Grant 5,329,908 - Tarr , et al. July 19, 1 | 1994-07-19 |
| Force balanced electronically controlled fuel injector Grant 5,301,875 - Gant , et al. April 12, 1 | 1994-04-12 |
| Unit fuel injector with injection chamber spill valve Grant 5,094,397 - Peters , et al. March 10, 1 | 1992-03-10 |
| Articulated open nozzle high pressure unit fuel injector Grant 5,076,240 - Perr December 31, 1 | 1991-12-31 |
| Fuel cutoff for better transient control Grant 5,076,236 - Yu , et al. December 31, 1 | 1991-12-31 |
| Electronic controlled fuel supply system for high pressure injector Grant 5,042,445 - Peters , et al. August 27, 1 | 1991-08-27 |
| Fuel injector with multiple variable timing Grant 5,033,442 - Perr , et al. July 23, 1 | 1991-07-23 |
| Injection rate control injector Grant 5,029,568 - Perr July 9, 1 | 1991-07-09 |
| Valve control system with a variable timing hydraulic link Grant 5,002,022 - Perr March 26, 1 | 1991-03-26 |
| High pressure unit fuel injector with timing chamber pressure control Grant 4,986,472 - Warlick , et al. January 22, 1 | 1991-01-22 |
| Fuel injector train with variable injection rate Grant 4,944,275 - Perr July 31, 1 | 1990-07-31 |
| Modified four stroke cycle and mechanism Grant 4,934,344 - Perr June 19, 1 | 1990-06-19 |
| Fuel injector for an internal combustion engine Grant 4,911,127 - Perr March 27, 1 | 1990-03-27 |
| Hydromechanical fuel pump system Grant 4,909,219 - Perr , et al. March 20, 1 | 1990-03-20 |
| High pressure unit fuel injector Grant 4,721,247 - Perr January 26, 1 | 1988-01-26 |
| Miniaturized unit fuel injector Grant 4,471,909 - Perr September 18, 1 | 1984-09-18 |
| Unit fuel injector having independently controlled timing and metering Grant 4,463,901 - Perr , et al. August 7, 1 | 1984-08-07 |
| Miniaturized unit fuel injector employing hydraulically controlled timing Grant 4,410,137 - Perr October 18, 1 | 1983-10-18 |
| Timing mechanism for a fuel supply system Grant 4,249,499 - Perr February 10, 1 | 1981-02-10 |
| Adjustable timing mechanism for fuel injection system Grant 4,206,734 - Perr , et al. June 10, 1 | 1980-06-10 |
| Aneroid for a turbocharged engine Grant 4,176,641 - Perr December 4, 1 | 1979-12-04 |
| Fuel injector Grant 4,149,506 - Muntean , et al. April 17, 1 | 1979-04-17 |
| Exhaust braking apparatus Grant 4,093,046 - Perr June 6, 1 | 1978-06-06 |
| Fuel injection system for diesel engines Grant 3,965,875 - Perr June 29, 1 | 1976-06-29 |
| Fuel supply system for an internal combustion engine Grant 3,951,117 - Perr April 20, 1 | 1976-04-20 |
| Fuel Injector Grant 3,831,846 - Perr , et al. August 27, 1 | 1974-08-27 |
| Fuel Injector Grant 3,782,864 - Perr January 1, 1 | 1974-01-01 |
uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.
While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.
All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.
| 