CALDER LIMITED

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B65H HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES178
 
  
 
F28G CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OF BOILERS 17

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5494235 Apparatus for projecting devices through tubes and conduitsJun 08, 93Feb 27, 96[B65H]
5265671 Apparatus for mechanically projecting devices through tubesDec 04, 91Nov 30, 93[F28G]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6651910 High pressure water control deviceExpiredNov 18, 02Nov 25, 03[B05B, A62C]
6447259 Pressure energy recovery deviceExpiredDec 04, 00Sep 10, 02[F04B]
5099911 Apparatus for mechanically projecting devices through tubesExpiredDec 12, 90Mar 31, 92[F28G]

Top Inventors for This Owner

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