Issued Patents All Time
Showing 25 most recent of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6701885 | Engine connecting rod mechanism for cylinder pressure control | Marek Lejzorowicz | 2004-03-09 |
| 6450136 | Variable compression ratio control system for an internal combustion engine | Rodney B. Rask | 2002-09-17 |
| 6397825 | Oxygen enrichment for air-assist type fuel injectors | — | 2002-06-04 |
| 6305363 | Air-assisted fuel injector with ozone enrichment | — | 2001-10-23 |
| 5730369 | Fuel injection | Stephen F. De Nagel, Arun S. Solomon | 1998-03-24 |
| 5353991 | Solenoid actuated valve assembly | Stephen F. De Nagel, Andrzej M. Pawlak | 1994-10-11 |
| 4993373 | Sealing shroud port timing valve for two cycle engine | Edward G. Groff, Donald Terry French, Paul M. Heck | 1991-02-19 |
| 4987864 | Two cycle engine with valved pressure scavenging | Ronald J. Cantrell, Edward G. Groff, James G. Solomon, Michael J. Gorman | 1991-01-29 |
| 4969424 | Electromagnetic diaphragm valve | — | 1990-11-13 |
| 4958771 | Injection nozzle | — | 1990-09-25 |
| 4955333 | Variable volume crankcase scavenge control | — | 1990-09-11 |
| 4945868 | Two cycle exhaust recycling | — | 1990-08-07 |
| 4945869 | Two cycle crankcase variable inlet timing | — | 1990-08-07 |
| 4932374 | Fuel injector nozzle for internal combustion engine | Bruce Peters | 1990-06-12 |
| 4920931 | Two cycle engine with vaned diffusing exhaust port | — | 1990-05-01 |
| 4776516 | Air-assist fuel injection nozzle | — | 1988-10-11 |
| 4708400 | Spare tire installation without conventional jack | — | 1987-11-24 |
| 4693420 | Air-assist fuel injection nozzle | — | 1987-09-15 |
| 4643142 | Squish control engine | — | 1987-02-17 |
| 4606234 | Ratio control mechanism for a friction drive transmission | — | 1986-08-19 |
| 4576338 | Fuel injector with hoop nozzle spray tip | — | 1986-03-18 |
| 4539954 | Selective asymmetric swirl intake port | — | 1985-09-10 |
| 4503817 | Annular valve stratified charge spark ignition engines | Thomas P. Kosek | 1985-03-12 |
| 4502635 | Fuel injection nozzle with auto-rotating tip | Walter Cornelius | 1985-03-05 |
| 4502325 | Measurement of mass airflow into an engine | — | 1985-03-05 |