OCEAN POWER TECHNOLOGIES, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F03B MACHINES OR ENGINES FOR LIQUIDS 294
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 11351
 
  
 
F03C POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS 915
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 879
 
  
 
B63B SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 533
 
  
 
B60L ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL 274
 
  
 
E02B HYDRAULIC ENGINEERING 117
 
  
 
F02B INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL 171
 
  
 
F03G SPRING, WEIGHT, INERTIA, OR LIKE MOTORS; MECHANICAL-POWER-PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR 118
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 161

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9790913 Pitch and heave driven wave energy converter system including cable supported reaction massesMar 23, 12Oct 17, 17[F03B]
9222458 Mooring anchor system for wave energy converters (WECS)Nov 27, 12Dec 29, 15[F03B]
9115686 Wave energy converter with rotary hydraulic springMar 26, 12Aug 25, 15[F03B]
8904778 Wave energy converter with asymmetrical floatMar 28, 11Dec 09, 14[F03B]
8869524 Ball and socket power cable connectorMar 27, 12Oct 28, 14[F03B, F03C, B63B]
8763389 Reaction mass and spring oscillator for wave energy converterJul 05, 12Jul 01, 14[F03B]
8723351 Multi-mode wave energy converter devices and systemsMar 26, 12May 13, 14[F03B]
8723355 Autonomously operated buoys with power generation and power usage controlMar 28, 11May 13, 14[H02P, F03B, H02G, B60L]
8587139 Advanced wave energy converter controlMay 28, 09Nov 19, 13[F03B]
8487459 Wave energy converter and power take off systemOct 09, 09Jul 16, 13[H02P, F03B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0074,758 Anchoring apparatus for wave energy convertersAbandonedSep 26, 11Mar 28, 13[B63B]
2005/0202,786 Network supervisory control system and network supervisory control methodAbandonedMar 14, 05Sep 15, 05[H04M]
6291904 Wave energy converter utilizing pressure differencesExpiredAug 21, 99Sep 18, 01[F03B]
6194815 Piezoelectric rotary electrical energy generatorExpiredFeb 19, 99Feb 27, 01[H01L]
5578889 Piezoelectric generation of electrical power from surface waves on bodies of water using suspended weighted membersExpiredFeb 14, 95Nov 26, 96[H01L]
4748366 Novel uses of piezoelectric materials for creating optical effectsExpiredSep 02, 86May 31, 88[H01L]
4685296 Ocean wave energy conversion using piezoelectric material membersExpiredJul 21, 86Aug 11, 87[F03B]
4615214 Piezoelectric wind sensorExpiredMay 06, 85Oct 07, 86[G01W]
4404490 Power generation from waves near the surface of bodies of waterExpiredJul 21, 80Sep 13, 83[F03B]

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