ETAGEN, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F02B INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL 1260
 
  
 
F01B MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES 720
 
  
 
F02F CYLINDERS, PISTONS, OR CASINGS FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES 530
 
  
 
F16J PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS347
 
  
 
F02D CONTROLLING COMBUSTION ENGINES 271
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 2105
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 285
 
  
 
F01P COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES 139

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9856821 Open-faced piston assemblyOct 14, 16Jan 02, 18[F02B, F02F, F16J]
9719415 Energy storage and conversion in free-piston combustion enginesJan 15, 15Aug 01, 17[H02K, F02B]
9657675 Control of piston trajectory in a free-piston combustion engineMar 31, 16May 23, 17[F02B, F02D]
9567898 High-efficiency linear combustion engineDec 09, 15Feb 14, 17[F02B, F01B]
9169797 Methods and systems for managing a clearance gap in a piston engineDec 29, 11Oct 27, 15[F02F, F16J]
9097203 Methods and systems for managing a clearance gap in a piston engineDec 29, 11Aug 04, 15[F01P, F02B, F01B, F02F, F16J]
9004038 Methods and systems for managing a clearance gap in a piston engineDec 29, 11Apr 14, 15[F02F, F16J]
8997699 Linear free piston combustion engine with indirect work extraction via gas linkageFeb 15, 11Apr 07, 15[F02B]
8899192 Methods and systems for managing a clearance gap in a piston engineDec 21, 12Dec 02, 14[F02B]
8770090 Methods and systems for managing a clearance gap in a piston engineDec 21, 12Jul 08, 14[F01B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0130,771 HIGH-EFFICIENCY LINEAR COMBUSTION ENGINEAbandonedJan 21, 14May 15, 14[F02B]
2013/0167,797 METHODS AND SYSTEMS FOR MANAGING A CLEARANCE GAP IN A PISTON ENGINEAbandonedDec 29, 11Jul 04, 13[F02F, F16J]
2012/0126,543 HIGH-EFFICIENCY SINGLE-PISTON LINEAR COMBUSTION ENGINEAbandonedNov 23, 10May 24, 12[H02K]

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