E.D. BULLARD COMPANY

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
A42B HATS; HEAD COVERINGS 717
 
  
 
G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS 2131
 
  
 
A62B DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING 136
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING172
 
  
 
G01J MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY 177
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 1361
 
  
 
0203 HEADWEAR110

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8381318 Adapter for protective helmetsJun 22, 10Feb 26, 13[A42B]
D666775 Protective helmetMar 02, 10Sep 04, 12[0203]
7897919 Method and system for thermal imaging having a selective temperature imaging modeSep 28, 09Mar 01, 11[G02F]
7699053 Powered air-purifying respirator systemDec 16, 05Apr 20, 10[F16K]
7622716 Method and system for thermal imaging having a selective temperature imaging modeJun 22, 07Nov 24, 09[G02F]
7321119 Method and system for thermal imaging having a selective temperature imaging modeMay 20, 05Jan 22, 08[H01L]
7213271 Brow pad for the headband of protective headgearAug 09, 04May 08, 07[A42B]
7174575 Ratchet mechanism for the headband of protective headgear used in high temperature environmentsJun 17, 05Feb 13, 07[A42B]
7156093 Inflatable respirator hoodJan 21, 04Jan 02, 07[A62B]
7043772 Ratchet mechanism with unitary knob and pinion constructionAug 31, 04May 16, 06[A42B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2009/0314,295 POWERED AIR PURIFYING RESPIRATORAbandonedDec 19, 07Dec 24, 09[A62B]
6862747 Protective helmet with vertically adjustable headbandExpiredFeb 18, 04Mar 08, 05[A42B]
2004/0181,856 Protective helmet with a system allowing for attachment of interchangeable accessoriesAbandonedFeb 26, 04Sep 23, 04[A42B]
5549104 Air delivery and exhalation exhaust system for protective helmetsExpiredSep 16, 94Aug 27, 96[A62B]
5257417 Fire fighter's face shield assemblyExpiredAug 17, 92Nov 02, 93[A42B]
5088115 Ventilated full body protective garmentExpiredDec 12, 90Feb 18, 92[A41D]
4899740 Respirator system for use with a hood or face maskExpiredJan 17, 89Feb 13, 90[A61M]
4888831 Adjustable head band suspension system for use with hard hat shellExpiredJun 10, 88Dec 26, 89[A42B]
4656667 Fire helmet and the likeExpiredMar 25, 85Apr 14, 87[A42B]
4619254 Protective respirator hood with inner and outer bibsExpiredMay 29, 84Oct 28, 86[A62B]
4561162 Method of making loose fitting supplied air respiration hoodExpiredJun 04, 84Dec 31, 85[B23P, B21D]
4542538 Disposable protective film accessory for the lens of a respirator hoodExpiredDec 10, 84Sep 24, 85[A61F, A42B]
4484575 Loose fitting supplied air respirator hoodExpiredJan 13, 83Nov 27, 84[A62B]
4455683 Self-adjusting protective garmentExpiredMar 29, 82Jun 26, 84[A41D]
4452240 Respiratory protection apparatusExpiredOct 05, 81Jun 05, 84[A62B]
4339926 Vortex tubeExpiredAug 03, 81Jul 20, 82[F25B]
4292692 Self-setting adjustable headbandExpiredMar 17, 80Oct 06, 81[A42B]
4271833 Ventilating system for protective clothingExpiredJun 25, 79Jun 09, 81[A62B]
4236514 Respiration systemExpiredJun 25, 79Dec 02, 80[A62B]

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