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David K. Stevens
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Stillwell, KS, US
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Patents Grants
last 30 patents
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Patent Grant
Method and apparatus for degasification of claus-derived sulfur
Patent number
8,084,013
Issue date
Dec 27, 2011
KPS Technology & Engineering LLC
Mark R. Tonjes
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for producing hydrogen
Patent number
7,931,889
Issue date
Apr 26, 2011
Black & Veatch Corporation
Peter D. Clark
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method and system for increasing the absorption selectivity of H2S...
Patent number
6,884,282
Issue date
Apr 26, 2005
David K. Stevens
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
Method and Consolidated Apparatus for Recovery of Sulfur from Acid...
Publication number
20110171115
Publication date
Jul 14, 2011
KPS TECHNOLOGY & ENGINEERING LLC
David K. Stevens
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Method and Apparatus for Degasification of Claus-Derived Sulfur
Publication number
20110020212
Publication date
Jan 27, 2011
KPS TECHNOLOGY & ENGINEERING LLC
Mark R. Tonjes
C01 - INORGANIC CHEMISTRY
Information
Patent Application
Method for producing hydrogen
Publication number
20100123099
Publication date
May 20, 2010
Peter D. Clark
C01 - INORGANIC CHEMISTRY
Information
Patent Application
Method for reducing the H2S content of an H2S-containing subterrane...
Publication number
20100108315
Publication date
May 6, 2010
David K. Stevens
E21 - EARTH DRILLING MINING
Information
Patent Application
Method and system for increasing the absorption selectivity of H2S...
Publication number
20030213363
Publication date
Nov 20, 2003
David K. Stevens
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL