DUFFIELD MARINE, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B63B SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 335
 
  
 
B63H MARINE PROPULSION OR STEERING 139
 
  
 
B65D CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES 197
 
  
 
E04B GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS 146
 
  
 
E04H BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL 129
 
  
 
F04D NON-POSITIVE-DISPLACEMENT PUMPS173
 
  
 
1216 PARTS, EQUIPMENT AND ACCESSORIES FOR VEHICLES, NOT INCLUDED IN OTHER CLASSES OR SUBCLASSES154

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8240269 Boat window systemFeb 09, 11Aug 14, 12[B63B]
8002141 Waterproof storage unitAug 19, 08Aug 23, 11[B65D]
7806661 PropellerJun 19, 08Oct 05, 10[F04D]
7506605 Boat window systemJan 30, 08Mar 24, 09[B63B]
7415938 Boat window systemApr 11, 05Aug 26, 08[B63B]
D575219 Boat propellerDec 05, 07Aug 19, 08[1216]
6503109 Swivel drive assemblyJul 19, 00Jan 07, 03[B63H]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0312,345 WATERPROOF STORAGE UNITAbandonedAug 06, 13Nov 28, 13[E04B]
2010/0101,476 BOAT WINDOW SYSTEMAbandonedOct 24, 08Apr 29, 10[B63B]
7015822 Battery capacity and usage systemExpiredJun 21, 04Mar 21, 06[G08B]
2004/0027,249 Battery capacity and usage systemAbandonedAug 07, 02Feb 12, 04[G08B]

Top Inventors for This Owner

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