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R. Scot Clark
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Fallbrook, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Manufacture of high precision electronic components with ultra-high...
Patent number
RE37972
Issue date
Feb 4, 2003
American Air Liquide, Inc.
R. Scot Clark
029 - Metal working
Information
Patent Grant
On-site generation of ultra-high-purity buffered-HF and ammonium fl...
Patent number
6,350,425
Issue date
Feb 26, 2002
Air Liquide America Corporation
Joe G. Hoffman
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
On-site manufacture of ultra-high-purity nitric acid
Patent number
6,214,173
Issue date
Apr 10, 2001
Air Liquide Electronics Chemicals & Services, Inc.
Mindi Xu
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
On-site manufacture of ultra-high-purity hydrofluoric acid for semi...
Patent number
6,063,356
Issue date
May 16, 2000
Air Liquide America Corporation
Joe G. Hoffman
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
System and method for on-site mixing of ultra-high-purity chemicals...
Patent number
6,050,283
Issue date
Apr 18, 2000
Air Liquide America Corporation
Joe G. Hoffman
G05 - CONTROLLING REGULATING
Information
Patent Grant
Point-of-use ammonia purification for electronic component manufacture
Patent number
6,015,477
Issue date
Jan 18, 2000
Air Liquide America Corporation
Joe G. Hoffman
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
On-site ammonia purification for semiconductor manufacture
Patent number
6,001,223
Issue date
Dec 14, 1999
Air Liquide America Corporation
Joe G. Hoffman
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Manufacture of high precision electronic components with ultra-high...
Patent number
RE36290
Issue date
Sep 7, 1999
Air Liquide Electronics Chemicals & Services, Inc.
R. Scot Clark
029 - Metal working
Information
Patent Grant
On-site manufacture of ultra-high-purity hydrochloric acid for semi...
Patent number
5,846,387
Issue date
Dec 8, 1998
Air Liquide Electronics Chemicals & Services, Inc.
Joe G. Hoffman
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
On-site ammonia purification for semiconductor manufacture
Patent number
5,846,386
Issue date
Dec 8, 1998
Startec Ventures, Inc.
Joe G. Hoffman
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
On-site manufacture of ultra-high-purity hydrofluoric acid for semi...
Patent number
5,785,820
Issue date
Jul 28, 1998
Startec Ventures, Inc.
Joe G. Hoffman
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Point-of-use ammonia purification for electronic component manufacture
Patent number
5,755,934
Issue date
May 26, 1998
Startec Ventures, Inc.
Joe G. Hoffman
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
On-site generation of ultra-high-purity buffered-HF for semiconduct...
Patent number
5,722,442
Issue date
Mar 3, 1998
Startec Ventures, Inc.
Joe G. Hoffman
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Point-of-use ammonia purification for electronic component manufacture
Patent number
5,496,778
Issue date
Mar 5, 1996
Startec Ventures, Inc.
Joe G. Hoffman
C01 - INORGANIC 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
Manufacture of high precision electronic components with ultra-high...
Patent number
5,242,468
Issue date
Sep 7, 1993
Startec Ventures, Inc.
R. Scot Clark
H01 - BASIC ELECTRIC ELEMENTS
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
Patents Applications
last 30 patents
Information
Patent Application
On-site generation of ultra-high-purity buffered-HF and ammonium fl...
Publication number
20020079478
Publication date
Jun 27, 2002
Joe G. Hoffman
C01 - INORGANIC CHEMISTRY
Information
Patent Application
On-site generation of ultra-high-purity buffered-HF and ammonium fl...
Publication number
20020081237
Publication date
Jun 27, 2002
Joe G. Hoffman
C01 - INORGANIC CHEMISTRY
Information
Patent Application
ON-SITE GENERATION OF ULTRA-HIGH-PURITY BUFFERED-HF AND AMMONIUM FL...
Publication number
20010051128
Publication date
Dec 13, 2001
JOE G. HOFFMAN
C01 - INORGANIC CHEMISTRY