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Mark Leonard Malczewski

PT Praxair Technology: 9 patents #105 of 918Top 15%
Overall (All Time): #521,502 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7390346 System and apparatus for producing primary standard gas mixtures Douglas C. Heiderman 2008-06-24
7064834 Method for analyzing impurities in carbon dioxide Michael Clinton Johnson, Carl Joseph Heim, John Fredric Billingham 2006-06-20
6889144 Life prediction for gas purifiers James Donald Borkman 2005-05-03
6594010 Emission spectrometer having a charge coupled device detector Joseph S. Wegrzyn, Wayne D. Martin 2003-07-15
6473175 Method for analyzing impurities in a gas stream 2002-10-29
6043881 Sample cell for gaseous emission spectroscopy Joseph S. Wegrzyn 2000-03-28
5831728 Gas emission spectrometer and method Hollis C. Demmin, David Brown, Donald Richard Wiltse 1998-11-03
5537879 Particle sampling system for gas supply system Arthur Edward Holmer, Hollis C. Demmin 1996-07-23
5412467 Gas emission spectrometer and method Hollis C. Demmin, David Brown, Donald Richard Wiltse 1995-05-02
5265031 Diagnostic gas monitoring process utilizing an expert system 1993-11-23