National Heat Exchange Cleaning Corporation

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B08B CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL 454
 
  
 
1505 WASHING, CLEANING AND DRYING MACHINES331

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2016/0221,052 Tube Cleaning Dart Having BladesFeb 04, 15Aug 04, 16[B08B]
2016/0121,378 Tube Cleaning DartOct 30, 14May 05, 16[B08B]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9862011 Tube cleaning dart having bladesFeb 04, 15Jan 09, 18[B08B, F28G]
D807596 Dart for cleaning tubesOct 30, 14Jan 09, 18[1505]
D807597 Dart having blades for cleaning tubesFeb 04, 15Jan 09, 18[1505]
D651773 Pipe cleaning apparatusOct 08, 10Jan 03, 12[1505]
7575641 Method and system for cleaning heat exchanger tube bundlesFeb 24, 06Aug 18, 09[B08B]
6085376 Pipe cleaning apparatusAug 07, 98Jul 11, 00[B08B]

Expired/Abandoned/Withdrawn Patents

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