Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7695450 | Multiple lumen catheter for hemodialysis | Zbylut J. Twardowski, John C. Van Stone | 2010-04-13 |
| 5961486 | Clot resistant multiple lumen catheter | Zbylut J. Twardowski, John C. Van Stone | 1999-10-05 |
| 5685867 | Clot resistant multiple lumen catheter | Zbylut J. Twardowski, John C. Van Stone | 1997-11-11 |
| 5569182 | Clot resistant multiple lumen catheter and method | Zbylut J. Twardowski, John C. Van Stone | 1996-10-29 |
| 5509897 | Multiple lumen catheter for hemodialysis | Zbylut J. Twardowski, John C. Van Stone | 1996-04-23 |
| 5405320 | Multiple lumen catheter for hemodialysis | Zbylut J. Twardowski, John C. Van Stone | 1995-04-11 |
| 5209723 | Multiple lumen catheter for hemodialysis | Zbylut J. Twardowski, John C. Van Stone | 1993-05-11 |
| 5171227 | Separable peritoneal dialysis catheter | Zbylut J. Twardowski, Ramesh Khanna, Karl D. Nolph | 1992-12-15 |