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Daniel D. Sympson
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Louisville, KY, US
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Patents Grants
last 30 patents
Information
Patent Grant
Device for testing vertical tubes in a chemical reactor
Patent number
9,500,631
Issue date
Nov 22, 2016
Extundo Incorporated
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method for treating vertical tubes in a chemical reactor
Patent number
8,753,452
Issue date
Jun 17, 2014
Extundo Incorporated
Clifford L. Johns
G01 - MEASURING TESTING
Information
Patent Grant
Method of using a device for measuring the back pressure in chemica...
Patent number
7,913,543
Issue date
Mar 29, 2011
TubeMaster Inc.
Clifford L. Johns
G01 - MEASURING TESTING
Information
Patent Grant
Vacuum attachment and method
Patent number
7,878,225
Issue date
Feb 1, 2011
Tubemaster, Inc.
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Seal for tube
Patent number
7,861,875
Issue date
Jan 4, 2011
Tubemaster, Inc.
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Device for loading chemical reactor tubes
Patent number
7,836,919
Issue date
Nov 23, 2010
TubeMaster Inc.
Clifford L Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Device for measuring back pressure in open-ended chemical reactor t...
Patent number
7,818,995
Issue date
Oct 26, 2010
Tubemaster, Inc.
Clifford L. Johns
G01 - MEASURING TESTING
Information
Patent Grant
Method for assessing chemical reactor tubes
Patent number
7,748,255
Issue date
Jul 6, 2010
TubeMaster Inc.
Clifford L. Johns
G01 - MEASURING TESTING
Information
Patent Grant
Device for measuring back pressure in chemical reactor tubes
Patent number
7,673,496
Issue date
Mar 9, 2010
TubeMaster Inc.
Clifford L. Johns
G01 - MEASURING TESTING
Information
Patent Grant
Method for loading reactor tubes
Patent number
7,458,401
Issue date
Dec 2, 2008
Tubemaster, Inc.
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Tool for loading reactor tubes
Patent number
7,285,251
Issue date
Oct 23, 2007
TubeMaster Inc.
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Tile surface
Patent number
D539441
Issue date
Mar 27, 2007
Tubemaster, Inc.
Clifford L. Johns
D25 - Building units and construction elements
Information
Patent Grant
Device and method for use with chemical reactor tubes
Patent number
6,981,404
Issue date
Jan 3, 2006
Tubemaster, Inc.
Clifford L. Johns
G01 - MEASURING TESTING
Information
Patent Grant
Device and method for blowing down and measuring the back pressure...
Patent number
6,725,706
Issue date
Apr 27, 2004
Tubemaster, Inc.
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
DEVICE FOR TESTING VERTICAL TUBES IN A CHEMICAL REACTOR
Publication number
20150056100
Publication date
Feb 26, 2015
Clifford L. Johns
G01 - MEASURING TESTING
Information
Patent Application
METHOD FOR TREATING VERTICAL TUBES IN A CHEMICAL REACTOR
Publication number
20120123731
Publication date
May 17, 2012
Extundo Incorporated
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
METHOD FOR DISPLAYING PRESSURE MEASUREMENT DATA FOR CHEMICAL REACTO...
Publication number
20090038378
Publication date
Feb 12, 2009
Tubemaster, Inc.
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
DEVICE FOR MEASURING BACK PRESSURE IN CHEMICAL REACTOR TUBES
Publication number
20080314119
Publication date
Dec 25, 2008
Tubemaster, Inc.
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
METHOD FOR ASSESSING CHEMICAL REACTOR TUBES
Publication number
20080314125
Publication date
Dec 25, 2008
Tubemaster, Inc.
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
METHOD FOR TREATING VERTICAL TUBES IN A CHEMICAL REACTOR
Publication number
20080314126
Publication date
Dec 25, 2008
Tubemaster, Inc.
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
VACUUM ATTACHMENT AND METHOD
Publication number
20080142045
Publication date
Jun 19, 2008
Tubemaster, Inc.
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
METHOD FOR LOADING REACTOR TUBES
Publication number
20070295424
Publication date
Dec 27, 2007
Tubemaster, Inc.
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
DEVICE FOR LOADING CHEMICAL REACTOR TUBES
Publication number
20070098605
Publication date
May 3, 2007
TubeMaster Inc.
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Method for measuring and displaying data for chemical reactor tubes
Publication number
20060037384
Publication date
Feb 23, 2006
Tubemaster, Inc.
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Tool for loading reactor tubes
Publication number
20040191135
Publication date
Sep 30, 2004
Tubemaster, Inc.
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Device and method for blowing down and measuring the back pressure...
Publication number
20040173008
Publication date
Sep 9, 2004
Tubemaster, Inc.
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Device and method for blowing down and measuring the back pressure...
Publication number
20020129642
Publication date
Sep 19, 2002
Tubemaster, Inc.
Clifford L. Johns
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL