Pien; Pao C.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Pien; Pao C..The latest application filed is for "two-stroke, homogeneous charge, spark-ignition engine".
- Pien; Pao C. - Marco Island FL
- Pien; Pao C - Marco Island FL
- Pien; Pao C. - Washington DC
| Patent | Date |
|---|---|
| Two-stroke, homogeneous charge, spark-ignition engine Grant 7,640,911 - Pien January 5, 2 | 2010-01-05 |
| Two-stroke, homogeneous charge, spark-ignition engine App 20090056687 - Pien; Pao C. | 2009-03-05 |
| Over expanded two-stroke engines Grant 7,114,485 - Pien October 3, 2 | 2006-10-03 |
| Over expanded two-stroke engines App 20050155569 - Pien, Pao C. | 2005-07-21 |
| Over expanded limited-temperature cycle two-stroke engines Grant 6,848,416 - Pien February 1, 2 | 2005-02-01 |
| Engine having piston-cam assembly powertrain Grant 6,799,542 - Pien October 5, 2 | 2004-10-05 |
| Universal contraceptive and prophylactic device Grant 5,327,911 - Pien July 12, 1 | 1994-07-12 |
| Multi-fuel compression-ignition engine and fuel injection pump therefor Grant RE34,252 - Pien May 18, 1 | 1993-05-18 |
| Internal combustion engine Grant 5,072,699 - Pien December 17, 1 | 1991-12-17 |
| Semi-tandem marine propeller Grant 4,306,839 - Pien December 22, 1 | 1981-12-22 |
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