David W. Persichini

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State College, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Separation and purification of fluoride from industrial wastes
- Patent number 5,876,685
- Issue date Mar 2, 1999
- IPEC Clean, Inc.
- Gerald A. Krulik
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Dehydration and purification of isopropyl alcohol to an ultradry an...
- Patent number 5,868,906
- Issue date Feb 9, 1999
- Athens Corporation
- John A. Adams
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Apparatus for the continuous on-site chemical reprocessing of ultra...
- Patent number 5,354,428
- Issue date Oct 11, 1994
- Athens Corp.
- R. Scot Clark
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Method for making ultrapure sulfuric acid
- Patent number 5,164,049
- Issue date Nov 17, 1992
- Athens Corporation
- R. Scot Clark
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Method and apparatus for the continuous on-site chemical reprocessi...
- Patent number 4,855,023
- Issue date Aug 8, 1989
- Athens, Inc.
- R. Scot Clark
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Method and apparatus for the continuous on-site chemical reprocessi...
- Patent number 4,828,660
- Issue date May 9, 1989
- Athens Corporation
- R. Scot Clark
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR