DOLORES J. HAPPEL DECLARATION OF TRUST

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E03F SEWERS; CESSPOOLS57
 
  
 
B01D SEPARATION 1133
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 154

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7294256 Storm water filter systemDec 27, 05Nov 13, 07[E03F]
7153417 Floating storm water drain basketMar 30, 05Dec 26, 06[E03F]
6869525 Storm drain filter systemJan 23, 03Mar 22, 05[E03F]
6797162 Catch basin filter for stormwater runoffJan 08, 03Sep 28, 04[E03F]
6270663 Storm drain filter systemJul 17, 00Aug 07, 01[E03F, C02F, B01D]

Expired/Abandoned/Withdrawn Patents

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Top Inventors for This Owner

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