Wolo Mfg. Corp.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G10K SOUND-PRODUCING DEVICES 530
 
  
 
1005 INSTRUMENTS, APPARATUS AND DEVICES FOR CHECKING, SECURITY OR TESTING516
 
  
 
G08B SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS 292
 
  
 
1006 SIGNALLING APPARATUS AND DEVICES22
 
  
 
B60R VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR 1109
 
  
 
G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 183
 
  
 
G10H ELECTROPHONIC MUSICAL INSTRUMENTS 130
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 193
 
  
 
H03F AMPLIFIERS 182
 
  
 
H04B TRANSMISSION 1209

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9318087 Electropneumatic horn systemNov 15, 13Apr 19, 16[G10K, H04R]
D733601 Horn coverFeb 20, 14Jul 07, 15[1006]
D704587 Electropneumatic hornJan 17, 12May 13, 14[1005]
8687835 Diaphragm for an electropneumatic horn systemNov 16, 11Apr 01, 14[G10K]
D695143 Horn coverSep 28, 11Dec 10, 13[1005]
8307285 Method and system having a multi-function base for storing and accessing an audio file for use in selection of a hornDec 08, 09Nov 06, 12[G10H]
8189816 Computer controlled amplifier and speaker system with power conservation featureJun 05, 08May 29, 12[H03F]
8149097 Horn device having a power supply and an electrical control circuitJul 08, 11Apr 03, 12[G08B]
8004390 Horn device having a plural power supplyFeb 26, 07Aug 23, 11[G08B]
7938078 Electropneumatic horn with air venting channelsMar 26, 10May 10, 11[G10K]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2008/0258,883 Horn deviceAbandonedJun 30, 08Oct 23, 08[G10K]
6588748 Lighted diceExpiredJun 12, 01Jul 08, 03[A63F]
5469135 Vehicle security device and alarmExpiredMay 10, 94Nov 21, 95[B60R]
D322925 Automobile lock for attachment to a floor-mounted gear shift lever and brake leverExpiredAug 01, 89Jan 07, 92[]
D318132 Safety light for vehiclesExpiredMay 24, 88Jul 09, 91[]
5029053 Rear illumination license plate frameExpiredNov 28, 89Jul 02, 91[B60Q]
4970884 Steering wheel lockExpiredFeb 07, 90Nov 20, 90[B60R]
4949561 Steering wheel lock barExpiredApr 07, 89Aug 21, 90[B60R]
4912454 Flashing led safety lights for demarcating the sides of a vehicleExpiredJan 13, 89Mar 27, 90[B60Q]
D306253 Automobile lock for attachment to a floor-mounted gear shift lever and hand brakeExpiredJan 06, 88Feb 27, 90[]
4857890 Safety rear license plate frameExpiredMar 02, 88Aug 15, 89[B60Q]
4819355 Motorcycle license plate frameExpiredJul 28, 87Apr 11, 89[B60R]
4798066 Automobile ignition lock cover with chain and bracket mountingExpiredFeb 05, 88Jan 17, 89[B60R]
4761720 Illuminated tapeExpiredMay 14, 87Aug 02, 88[F21V, F21S]
4747279 Automobile security device for locking a floor-mounted gearshift leverExpiredMay 04, 87May 31, 88[B60R]
4712639 Automobile anti-theft deviceExpiredFeb 11, 87Dec 15, 87[E05B]
4658613 Automobile anti-theft deviceExpiredNov 27, 85Apr 21, 87[E05B]
4505140 Automobile security device for steering column ignition locksExpiredSep 07, 82Mar 19, 85[B60R]
4494391 Automobile security device for steering column ignition locksExpiredAug 19, 83Jan 22, 85[E05B]

Top Inventors for This Owner

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