National Draeger Incorporated

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 6200

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5987965 Gas sensor with conductive housing portionsOct 14, 98Nov 23, 99[G01N]
5827948 Gas sensor with liquid-tight sealJul 08, 97Oct 27, 98[G01N]
5777208 Gas sensor with pressurized sealOct 22, 96Jul 07, 98[G01N]
RE31914 Electrochemical gas detection methodApr 29, 81Jun 18, 85[G01N]
RE31915 Gas detecting and measuring deviceApr 29, 81Jun 18, 85[G01N]
RE31916 Electrochemical detection cellApr 29, 81Jun 18, 85[G01N]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6358384 Electrochemical sensor for detecting a predetermined gasExpiredJun 20, 00Mar 19, 02[G01N]

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