Skip to main content
Photos for Department (196H x 960W)
Dr. Donald J. Gray
Associate Professor of Chemical Engineering
Research Interests
  • Closed Loop Recycling Systems.
  • Metal Vapor Degreasing Systems.
  • Alternative Cleaning Solvents.
  • Vacuum Technology. 


Research Information

Present work includes semiconductor and solar wafer processing and green chemistry metal processing systems. He has obtained a number of U.S. and foreign patents on closed loop metal processing, photo resist stripping, dry cleaning, and carbon desorption processes. The EPA has classified his processes as maximum achievable controlled technology, and his cleaning processes are presently used in the Mission to Mars program and widely used throughout the aerospace, microelectronics, and medical industries. 


Publications and Patents

  • US Patent 5,240,507, "Cleaning method and system"
  • US Patent 5,469,876, "Cleaning method and system"
  • US Patent 5,538,025, "Solvent cleaning system"
  • US Patent 5,630,434, "Filter regeneration system"
  • US Patent 5,702,535, "Dry cleaning and degreasing system"
  • US Patent 6,004,403, "Solvent cleaning system"
  • US Patent 7,444,761, "Intrinsically safe flammable solvent processing method and system"

View patents via searches at the US PTO web site.


Education

Ph.D. University of Rhode Island, 1980.
M.S. University of Rhode Island, 1978.
B.S. University of Rhode Island, l970. 
Posts
No data available.
Contact Information
 
Address:

 

 Room 202
Crawford Hall
University of Rhode Island
Kingston, RI   02881
Telephone:
Fax:		 (401) 874 - 2651
(401) 874 - 4689
E-mail: gray@egr.uri.edu