| WILLIAM HARVEY OVER PRESSURE SAFETY VALVE | TERUMO CARDIOVASCULAR SYSTEMS CORP. | 2009-08-19 |
| TERUMO OVERPRESSURE SAFETY VALVE | * | 2009-02-05 |
| *OVERPRESSURE SAFETY VALVE | TERUMO CARDIOVASCULAR SYSTEMS CORP. | 2009-01-27 |
| VACUUM RELIEF VALVE IIC--CLEAR | QUEST MEDICAL, INC. | 2006-09-19 |
| VACUUM RELIEF VALVE IIC-CLEAR | QUEST MEDICAL, INC. | 2006-05-16 |
| MEDTRONIC OVERPRESSURE/VACUUM RELIEF VALVE | MEDTRONIC PERFUSION SYSTEMS | 2006-04-03 |
| MEDTRONIC OVERPRESSURE/VACUUM RELIEF VALVE | MEDTRONIC PERFUSION SYSTEMS | 2006-03-29 |
| MEDTRONIC OVERPRESSURE/VACUUM RELIEF VALVE | MEDTRONIC PERFUSION SYSTEMS | 2005-03-25 |
| MEDTRONIC OVERPRESSURE/VACUUM RELIEF VALVE | MEDTRONIC PERFUSION SYSTEMS | 2005-03-25 |
| MEDTRONIC OVERPRESSURE/VACUUM RELIEF VALVE | MEDTRONIC PERFUSION SYSTEMS | 2005-03-25 |
| MEDTRONIC OVERPRESSURE/ VACUUM RELIEF VALVE | MEDTRONIC PERFUSION SYSTEMS | 2004-10-15 |
| MEDTRONIC OVERPRESSURE/VACUUM RELIEF VALVE | MEDTRONIC PERFUSION SYSTEMS | 2004-07-06 |
| MEDTRONIC OVERPRESSURE/VACUUM RELIEF VALVE | MEDTRONIC PERFUSION SYSTEMS | 2004-03-04 |
| VRV -11 (STERILE) | QUEST MEDICAL, INC. | 2003-05-01 |
| RLV KT9116105 | QUEST MEDICAL, INC. | 2003-04-16 |
| VRVVACCUM RELIEF VALVE | QUEST MEDICAL, INC. | 2003-04-16 |
| RLVVACCUM RELIEF VALVE | QUEST MEDICAL, INC. | 2003-04-16 |
| VACUUM RELIEF VALVE | MEDTRONIC PERFUSION SYSTEMS | 2001-12-26 |
| ** | BIRD PRODUCTS CORP. | 2001-11-06 |
| BIRD | BIRD PRODUCTS CORP. | 2001-11-06 |
| | 2001-11-06 |
| MEDTRONIC VRV-100 | MEDTRONIC CARDIOPULMONARY- ANAHEIM | 2000-04-12 |
| MEDTRONIC VRV-100 | MEDTRONIC CARDIOPULMONARY-ANAHEIM | 2000-04-03 |
| BARD OPS VALVE | BARD VASCULAR SYSTEM | 1999-06-23 |
| PRESSURE REDUCTION VALVE | LINDE AG | 1999-04-09 |
| | 1999-04-09 |
| VRV-II (STERILE) | QUEST MEDICAL, INC. | 1998-07-30 |
| VRV-II (NON-STERILE) | QUEST MEDICAL, INC. | 1998-07-20 |
| VRV-II (NON-STERILE) | QUEST MEDICAL, INC. | 1998-04-14 |
| BARD OVERPRESS.SAFETY VAL | BARD VASCULAR SYSTEM | 1998-04-07 |
| VRV-II (STERILE) | QUEST MEDICAL, INC. | 1998-04-03 |
| VRV-II (NON-STERILE) | QUEST MEDICAL, INC. | 1998-04-03 |
| VRV-II (NON-STERILE) | QUEST MEDICAL, INC. | 1998-04-03 |
| VRV-II (NON-STERILE) | QUEST MEDICAL, INC. | 1998-04-03 |
| VRV-II (NONE-STERILE) | QUEST MEDICAL, INC. | 1998-02-19 |
| VRV-II (NON-STERILE) | QUEST MEDICAL, INC. | 1998-02-19 |
| VRV-II (NON-STERILE) | QUEST MEDICAL, INC. | 1998-02-19 |
| VRV-II (NON-STERILE) | QUEST MEDICAL, INC. | 1998-02-19 |
| VRV-II (NON-STERILE) | QUEST MEDICAL, INC. | 1998-02-19 |
| VRV-II (NON-STERILE) | QUEST MEDICAL, INC. | 1998-02-19 |
| VRV-II (STERILE) | QUEST MEDICAL, INC. | 1998-02-19 |
| BARD OVERPRES SAFETY VALVE | BARD VASCULAR SYSTEM | 1998-02-09 |
| VRV-II (STERILE) | QUEST MEDICAL, INC. | 1998-01-20 |
| VRV-II (STERILE) | QUEST MEDICAL, INC. | 1998-01-20 |
| VRV-II (NON-STERILE) | QUEST MEDICAL, INC. | 1998-01-20 |
| VRV-II (STERILE) | QUEST MEDICAL, INC. | 1998-01-20 |
| BARD | C.R. BARD, INC. | 1998-01-16 |
| WILLIAM HARVEY H130 OPSV | BARD VASCULAR SYSTEM | 1998-01-16 |
| VRV-II (STERILE) | QUEST MEDICAL, INC. | 1997-11-18 |
| VRV-II (STERILE) | QUEST MEDICAL, INC. | 1997-11-18 |