NATIONAL ENVIRONMENTAL PRODUCTS, LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F24F AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING 243
 
  
 
B01D SEPARATION 1133
 
  
 
B01F MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING 141
 
  
 
F04F PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED 113
 
  
 
F22B METHODS OF STEAM GENERATION; STEAM BOILERS 122
 
  
 
F28B STEAM OR VAPOUR CONDENSERS 17
 
  
 
G05B CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 1100
 
  
 
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 1119
 
  
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 1110

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0157,527 Humidification System with Pressure Condensate Return and Method ThereforDec 17, 15Jun 08, 17[F28B, F04F, F24F, B01D]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7011300 Steam humidifier and methodOct 02, 03Mar 14, 06[B01F]
7012223 Forced-air heater control system and methodNov 25, 03Mar 14, 06[H05B]
6078729 Foam, drain and fill control system for humidifierOct 21, 97Jun 20, 00[F22B, F24F]
5744923 Microprocessor-based controller for actuator motors with capacitive power backup and method thereforNov 22, 96Apr 28, 98[G05B]
5278454 Emergency capacitive energy source and circuit for damper motors and actuator motorsJun 22, 92Jan 11, 94[H02J]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0115,053 Eyelet for Steam Humidification SystemAbandonedDec 13, 13Apr 30, 15[F24F]
2014/0203,459 STEAM HUMIDIFICATION SYSTEMAbandonedJan 21, 13Jul 24, 14[F24F]
7534306 Steam humidifier and methodExpiredDec 06, 05May 19, 09[F23J]
2006/0016,201 Actuator alarm for critical environments or applicationsAbandonedDec 03, 04Jan 26, 06[G01K]
6792963 Coolant fed humidifier having siphon drain and method thereforExpiredSep 19, 02Sep 21, 04[F04F]
5583301 Ultrasound air velocity detector for HVAC ducts and method thereforExpiredNov 09, 94Dec 10, 96[G01F]

Top Inventors for This Owner

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