BEAVER AEROSPACE AND DEFENSE, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 1295
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 681
 
  
 
F01D NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES 164
 
  
 
F16H GEARING199
 
  
 
G05G CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY 131
 
  
 
G08C TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS 154
 
  
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 1155

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8030787 Mbackup flywheel power supplyDec 19, 08Oct 04, 11[H02K]
7855465 Three plus three phase flywheel electric power supplyOct 28, 09Dec 21, 10[H02K]
7741795 Synchronous reluctance machine controllerDec 27, 06Jun 22, 10[H02K, H02P]
7633172 Three plus three phase flywheel power supplyFeb 13, 09Dec 15, 09[H02K]
7489100 Feedforward controller for synchronous reluctance machinesDec 21, 06Feb 10, 09[H02P]
7187087 Flywheel system with synchronous reluctance and permanent magnet generatorsOct 14, 05Mar 06, 07[H02K]
7170255 Feedforward controller for synchronous reluctance machinesNov 30, 05Jan 30, 07[H02P]
7109622 Flywheel system with synchronous reluctance and permanent magnet generatorsJun 07, 04Sep 19, 06[H02K]
7078876 Feedforward controller for synchronous reluctance machinesJul 07, 04Jul 18, 06[H02P]
6202498 Screw with recirculating ball arrangementNov 13, 98Mar 20, 01[F16H]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2008/0168,858 FLYWHEEL STABILITY SLEEVEAbandonedJan 11, 08Jul 17, 08[H02K]
2007/0114,795 FLYWHEEL SYSTEM WITH SYNCHRONOUS RELUCTANCE AND PERMANENT MAGNET GENERATORSAbandonedJan 17, 07May 24, 07[H02K]
7082809 High capacity mechanical drive arrangementExpiredJun 12, 03Aug 01, 06[B30B]
6653757 Preparation of permanent magnet motor shaftExpiredMar 21, 01Nov 25, 03[H02K]
6175172 Hub and cylinder design for flywheel system for mobile energy storageExpiredAug 04, 97Jan 16, 01[H02K]
6144128 Safety system for flywheel system for mobile energy storageExpiredAug 04, 97Nov 07, 00[H02K]
5063809 Return tube arrangement for ball screw assemblyExpiredOct 15, 90Nov 12, 91[F16H]
5014568 Deflector for ball screw and nut assemblyExpiredFeb 28, 90May 14, 91[F16H]
4981459 Anti-lock ball spline assemblyExpiredMay 30, 89Jan 01, 91[F16D]

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