ZhaoHua Chang

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Binghamton, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Cryosurgical instrument with vent means and method using same
- Patent number 5,520,682
- Issue date May 28, 1996
- Cryomedical Sciences, Inc.
- John G. Baust
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Cryogenic transport hose
- Patent number 5,400,602
- Issue date Mar 28, 1995
- Cryomedical Sciences, Inc.
- ZhaoHua Chang
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Cryosurgical instrument with vent holes and method using same
- Patent number 5,254,116
- Issue date Oct 19, 1993
- Cryomedical Sciences, Inc.
- John G. Baust
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE