Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5846235 | Endoscopic cryospray device | Pankaj J. Pasricha, Anthony N. Kalloo, Lawrence Potorff | 1998-12-08 |
| 5573532 | Cryogenic surgical instrument and method of manufacturing the same | Zhao H. Chang, J. J. Finkelstein | 1996-11-12 |
| 5520682 | Cryosurgical instrument with vent means and method using same | Zhaohua CHANG, J. J. Finkelstein | 1996-05-28 |
| 5437673 | Closed circulation tissue warming apparatus and method of using the same in prostate surgery | Zhao H. Chang, Jeffrey Cohen, Gary Onik, George Reyes | 1995-08-01 |
| 5400602 | Cryogenic transport hose | Zhaohua CHANG, Larry Pottorff | 1995-03-28 |
| 5254116 | Cryosurgical instrument with vent holes and method using same | Zhaohua CHANG, J. J. Finkelstein | 1993-10-19 |