|
US5270046A
|
Heparin bound anti-thrombotic material |
Expired / Lapsed
|
1991-11-06 |
1993-12-14 |
13 |
Details
|
|
US4986832A
|
Artificial blood vessel and process for preparing it |
Expired / Lapsed
|
1988-08-25 |
1991-01-22 |
11 |
Details
|
|
US4957508A
|
Medical tubes |
Expired / Lapsed
|
1987-10-30 |
1990-09-18 |
5 |
Details
|
|
US4872867A
|
Compositions having antithrombogenic properties and blood c… |
Expired / Lapsed
|
1989-02-28 |
1989-10-10 |
16 |
Details
|