HEADWATERS, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C10L FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUEFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS 339
 
  
 
A61M DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY 2152
 
  
 
B01D SEPARATION 2132
 
  
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 266
 
  
 
H01T SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES 224
 
  
 
B03C MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS 120
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 1205
 
  
 
G04B MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME-PIECES USING THE POSITION OF THE SUN, MOON, OR STARS 136
 
  
 
H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS 1106
 
  
 
2304 VENTILATION AND AIR-CONDITIONING EQUIPMENT133

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2016/0318,798 RECOVERY OF VALUE ADDED INDUSTRIAL PRODUCTS FROM FLUE-GAS DESULFURIZATION WASTE WATERS AT POWER PLANTSApr 22, 16Nov 03, 16[C04B]
2014/0275,741 SYSTEM AND METHOD PROVIDING ALL-NIGHT SLEEP MANAGEMENTMar 12, 13Sep 18, 14[A61M]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9737895 Personal rechargeable portable ionic air purifierJun 07, 15Aug 22, 17[B03C, H01T, B01D]
9694154 Sound machine with pseudo random white noise generatorMar 12, 13Jul 04, 17[H04R, A61M]
9651497 Method and device to determine adsorption capacity for air entraining agentsOct 10, 14May 16, 17[C04B, G04B, G01N]
7780934 Method and system for reducing ammonia slip after selective reduction of NOxSep 06, 05Aug 24, 10[B01D]
D548316 Filter drawerNov 12, 05Aug 07, 07[2304]
7215526 Ion generator with open emitter and safety featureMay 24, 05May 08, 07[H01T]
5487764 Reclaiming and utilizing discarded and newly formed coke breeze, coal fines, and blast furnace revert materials, and related methodsDec 13, 94Jan 30, 96[C10L]
5453103 Reclaiming and utilizing discarded and newly formed coke breeze, coal fines, and blast furnace revert materials, and related methodsJan 21, 94Sep 26, 95[C10L]
5238629 Process of coal agglomerationAug 09, 91Aug 24, 93[C10L]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2008/0076,955 Method and System for Pre-Treating Fly AshAbandonedSep 07, 05Mar 27, 08[C04B, A62D, B01D]
7244290 Electrostatic room air cleanerExpiredNov 22, 04Jul 17, 07[B03C]
2003/0147,785 Air-circulating, ionizing, air cleanerAbandonedJan 31, 03Aug 07, 03[B01J]
5922261 Process for recovering iron from iron-rich materialExpiredJun 18, 98Jul 13, 99[C22B, B27N]
5807420 Process for reduction of iron with solid fuel objects as amended by examExpiredAug 08, 97Sep 15, 98[C21B]
5752993 Blast furnace fuel from reclaimed carbonaceous materials and related methodsExpiredNov 15, 96May 19, 98[C10L]
5738694 Process for recovering iron from iron-containing materialExpiredDec 19, 96Apr 14, 98[C10L]
5599361 Reclaiming and utilizing discarded and newly formed coke breeze, coal fines, and blast furnace revert materials, and related methodsExpiredJan 25, 96Feb 04, 97[C10L]
5589118 Process for recovering iron from iron-containing materialExpiredJun 06, 95Dec 31, 96[C22B, B29C]

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