The Will-Burt Company

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E04H BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL 1119
 
  
 
F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR 9101
 
  
 
F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING 445
 
  
 
H01Q AERIALS 4106
 
  
 
F16M FRAMES, CASINGS, OR BEDS, OF ENGINES OR OTHER MACHINES OR APPARATUS, NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS OR SUPPORTS332
 
  
 
G08B SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS 391
 
  
 
B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL 262
 
  
 
A45F TRAVELLING OR CAMP EQUIPMENT; SACKS OR PACKS CARRIED ON THE BODY 116
 
  
 
B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD 122
 
  
 
F16H GEARING199

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9670948 Latch for sequentially extended mechanical mastJan 27, 16Jun 06, 17[F16B]
9574590 Toggle latch for sequentially extended mechanical mastNov 02, 12Feb 21, 17[F21V, F16B, H01Q, B60Q, E04H]
9520642 Pneumatic non-locking low-profile telescoping mastsApr 08, 16Dec 13, 16[H01Q, E04H]
9003719 Sliding locking actuator for automatic tilt mechanismMar 14, 14Apr 14, 15[E04H]
8979072 Mast safety restraint mechanismApr 25, 12Mar 17, 15[F21V, F16M, H01Q, B66F, E04H]
8922451 Lockdown mechanism for an electric drive screw telescoping mast systemJan 25, 11Dec 30, 14[F16B, H01Q, E04H]
8887450 Support bearing assemblyOct 19, 05Nov 18, 14[F16C, E04H]
8714426 Tripod and transport pack assemblySep 17, 10May 06, 14[A45F]
8534004 Rapid deployment and retraction telescoping mast systemNov 05, 10Sep 17, 13[E04H]
D666113 Hand-held current sensing deviceMar 23, 11Aug 28, 12[1004]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2008/0258,931 PNEUMATICALLY TELESCOPING MAST WITH DUAL MODE REMOTE CONTROLAbandonedApr 17, 08Oct 23, 08[G08C]
5718087 Telescoping mast assemblyExpiredMay 02, 96Feb 17, 98[E04H]
5203746 Telescoping mast assemblyExpiredMay 07, 92Apr 20, 93[F16G]
5168679 Telescoping mast assemblyExpiredMay 09, 91Dec 08, 92[E04H]
5167098 Fire resistant modular buildingExpiredFeb 22, 91Dec 01, 92[E04B]
5139464 Telescoping mast assemblyExpiredJun 19, 91Aug 18, 92[F16G]
5107672 Rigid drive assemblyExpiredMay 10, 91Apr 28, 92[F16G]
5102375 Telescoping mast assemblyExpiredMay 09, 91Apr 07, 92[F16H]
4843402 Azimuth array of rotory antennas with selectable lobe patternsExpiredJun 27, 86Jun 27, 89[H01Q]
4420917 Guyline tension device for communication towersExpiredDec 28, 81Dec 20, 83[E04H]
4413451 Pneumatically actuated tilting telescoping mast constructionExpiredMay 05, 82Nov 08, 83[E04F, E04H]
4319146 Power driven equipment safety deviceExpiredMay 23, 80Mar 09, 82[H02H]

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